# List of United States tornadoes from August to October 2017

This page documents all tornadoes confirmed by various weather forecast offices of the National Weather Service in the United States from August to October2017.

## United States yearly total

Confirmed tornadoes by Enhanced Fujita rating :
| EFU | EF0 | EF1 | EF2 | EF3 | EF4 | EF5 | Total |
| 67 | 615 | 594* | 127 | 13 | 2 | 0 | 1,418 |
* Note: An EF2 tornado from Canada crossed into the United States, where that portion of the track was rated EF1.

## August

Confirmed tornadoes by Enhanced Fujita rating :
| EFU | EF0 | EF1 | EF2 | EF3 | EF4 | EF5 | Total |
| 1 | 75 | 34 | 6 | 0 | 0 | 0 | 116 |

### August 2 event

List of confirmed tornadoes – Wednesday, August 2, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Rend Lake | Jefferson | IL | 38°09′00″N 88°56′12″W﻿ / ﻿38.15°N 88.9368°W﻿ / 38.15; -88.9368﻿ (Rend Lake (Aug. 2, EF0)) | 23:27–23:29 | 0.5 mi (0.80 km) | 40 yd (37 m) | A waterspout was photographed. |

### August 3 event

List of confirmed tornadoes – Thursday, August 3, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Kewadin | Antrim | MI | 44°55′43″N 85°22′51″W﻿ / ﻿44.9285°N 85.3808°W﻿ / 44.9285; -85.3808﻿ (Kewadin (Aug. 3, EF0)) | 22:10–22:11 | 0.09 mi (0.14 km) | 55 yd (50 m) | A few homes and outbuildings sustained minor damage. |
| EF0 | Lake Winnibigoshish (1st tornado) | Cass | MN | 47°27′02″N 94°12′38″W﻿ / ﻿47.4506°N 94.2105°W﻿ / 47.4506; -94.2105﻿ (Lake Winnibigoshish (Aug. 3, EF0)) | 23:04–22:15 | 0.34 mi (0.55 km) | 20 yd (18 m) | The public documented three simultaneous waterspouts. |
| EF0 | Lake Winnibigoshish (2nd tornado) | Cass | MN | 47°26′03″N 94°15′09″W﻿ / ﻿47.4341°N 94.2526°W﻿ / 47.4341; -94.2526﻿ (Lake Winnibigoshish (Aug. 3, EF0)) | 23:04–22:15 | 0.2 mi (0.32 km) | 10 yd (9.1 m) | The public documented three simultaneous waterspouts. |
| EF0 | Lake Winnibigoshish (3rd tornado) | Cass | MN | 47°24′00″N 94°17′10″W﻿ / ﻿47.3999°N 94.2862°W﻿ / 47.3999; -94.2862﻿ (Lake Winnibigoshish (Aug. 3, EF0)) | 23:10–22:15 | 0.1 mi (0.16 km) | 20 yd (18 m) | The public documented three simultaneous waterspouts. |
| EF0 | South Phoenix | Maricopa | AZ | 33°25′N 112°04′W﻿ / ﻿33.41°N 112.07°W﻿ / 33.41; -112.07﻿ (Phoenix (Aug. 3, EF0)) | 00:05–00:10 | 0.25 mi (0.40 km) | 100 yd (91 m) | A brief landspout tornado was documented. |

### August 4 event

List of confirmed tornadoes – Friday, August 4, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EFU | Great Sacandaga Lake | Saratoga | NY | 43°10′N 74°07′W﻿ / ﻿43.17°N 74.11°W﻿ / 43.17; -74.11﻿ (Great Sacandaga (Aug. 4, EFU)) | 18:50–18:51 | 0.05 mi (0.080 km) | 20 yd (18 m) | Video via Facebook documented a tornado over the Great Sacandaga Lake. |
| EF1 | N of Needmore | Fulton | PA | 39°51′17″N 78°09′00″W﻿ / ﻿39.8548°N 78.15°W﻿ / 39.8548; -78.15﻿ (Needmore (Aug. 4, EF1)) | 21:55–22:01 | 1.22 mi (1.96 km) | 200 yd (180 m) | Approximately 150 trees were snapped or uprooted. |
| EF1 | S of Macon | Bibb | GA | 32°42′52″N 83°41′55″W﻿ / ﻿32.7145°N 83.6986°W﻿ / 32.7145; -83.6986﻿ (Macon (Aug. 4, EF1)) | 23:46–23:50 | 1.86 mi (2.99 km) | 200 yd (180 m) | A home sustained significant roof damage, an outbuilding was removed from its foundation and destroyed, and many trees were snapped or uprooted. A barn and an outbuilding also sustained roof damage, and a sunflower field was damaged. |

### August 5 event

List of confirmed tornadoes – Saturday, August 5, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | NE of Millinocket | Penobscot | ME | 45°41′N 68°41′W﻿ / ﻿45.69°N 68.69°W﻿ / 45.69; -68.69﻿ (Millinocket (Aug. 5, EF1)) | 02:47–02:59 | 2.53 mi (4.07 km) | 33 yd (30 m) | Over 1,000 trees were snapped or downed in a convergent pattern. |
| EF1 | Sherman | Aroostook | ME | 45°55′N 68°22′W﻿ / ﻿45.91°N 68.36°W﻿ / 45.91; -68.36﻿ (Sherman (Aug. 5, EF1)) | 03:30–03:31 | 0.48 mi (0.77 km) | 20 yd (18 m) | A large section of a roof was ripped off one barn, and a second barn partially damaged. A chicken coop was destroyed, and a residence sustained significant shingle damage. A few trees were uprooted. |

### August 6 event

List of confirmed tornadoes – Sunday, August 6, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF2 | Southeastern Tulsa to N of Broken Arrow | Tulsa | OK | 36°06′35″N 95°56′12″W﻿ / ﻿36.1097°N 95.9367°W﻿ / 36.1097; -95.9367﻿ (Tulsa (Aug. 6, EF2)) | 06:19–06:25 | 6.9 mi (11.1 km) | 550 yd (500 m) | See section on this tornado – 30 people were injured and losses totaled $50 million. |
| EF1 | N of Broken Arrow | Tulsa, Wagoner | OK | 36°05′31″N 95°47′37″W﻿ / ﻿36.0919°N 95.7936°W﻿ / 36.0919; -95.7936﻿ (Broken Arrow (Aug. 6, EF1)) | 06:27–06:31 | 2.9 mi (4.7 km) | 400 yd (370 m) | Numerous homes sustained roof damage, and numerous large trees were snapped or uprooted. The roof of an outbuilding was blown off. |
| EF1 | E of Oologah | Rogers | OK | 36°26′39″N 95°41′27″W﻿ / ﻿36.4443°N 95.6908°W﻿ / 36.4443; -95.6908﻿ (Oologah (Aug. 6, EF1)) | 06:32–06:40 | 4.5 mi (7.2 km) | 200 yd (180 m) | Barns, trees, and a home were damaged. Power poles were snapped. |
| EF1 | S of Chelsea | Rogers, Mayes | OK | 36°26′59″N 95°26′27″W﻿ / ﻿36.4496°N 95.4409°W﻿ / 36.4496; -95.4409﻿ (Chelsea (Aug. 6, EF1)) | 07:11–07:13 | 0.9 mi (1.4 km) | 400 yd (370 m) | An agricultural building sustained minor roof damage. |

### August 7 event

List of confirmed tornadoes – Monday, August 7, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | Salisbury | Wicomico | MD | 38°20′27″N 75°36′24″W﻿ / ﻿38.3408°N 75.6066°W﻿ / 38.3408; -75.6066﻿ (Salisbury (Aug. 7, EF1)) | 17:40–17:41 | 1.47 mi (2.37 km) | 150 yd (140 m) | Several businesses were damaged near Salisbury University. Cars in the parking lot of a strip mall were tossed, and structures nearby sustained minor damage. A concrete block building collapsed when its bay doors were left open. |
| EF0 | Weems to Irvington | Lancaster | VA | 37°39′26″N 76°27′00″W﻿ / ﻿37.6571°N 76.45°W﻿ / 37.6571; -76.45﻿ (Irvington (Aug. 7, EF0)) | 18:51–18:55 | 2.09 mi (3.36 km) | 50 yd (46 m) | A couple of homes lost some of their siding and shingles. Trees were blown down. |
| EF0 | S of Champion | Chase | NE | 40°26′N 101°45′W﻿ / ﻿40.43°N 101.75°W﻿ / 40.43; -101.75﻿ (Champion (Aug. 7, EF0)) | 22:22 | 0.1 mi (0.16 km) | 10 yd (9.1 m) | A trained storm spotter reported a brief landspout tornado. |

### August 9 event

List of confirmed tornadoes – Wednesday, August 9, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SE of Wagon Mound | Mora | NM | 35°51′34″N 104°39′39″W﻿ / ﻿35.8595°N 104.6608°W﻿ / 35.8595; -104.6608﻿ (Wagon Mound (Aug. 9, EF0)) | 23:50–23:51 | 0.33 mi (0.53 km) | 50 yd (46 m) | A KRQE viewer submitted a picture of a small tornado. |

### August 11 event

List of confirmed tornadoes – Friday, August 11, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | ENE of Key West | Monroe | FL | 24°34′08″N 81°44′02″W﻿ / ﻿24.5688°N 81.7339°W﻿ / 24.5688; -81.7339﻿ (Key West (Aug. 11, EF0)) | 21:03–21:05 | 0.22 mi (0.35 km) | 25 yd (23 m) | A metal tube roof structure was flipped airborne, a boat tarp was lifted, and a folding tent structure was tossed. A boat covering frame was removed and tossed, and numerous small limbs were snapped. |
| EF0 | Broad Run | Fauquier | VA | 38°49′20″N 77°43′59″W﻿ / ﻿38.8222°N 77.7330°W﻿ / 38.8222; -77.7330﻿ (Broad Run (Aug. 11, EF0)) | 22:08–22:10 | 1.38 mi (2.22 km) | 100 yd (91 m) | Numerous trees were snapped or uprooted, some of which fell on power lines and homes. |

### August 12 event

List of confirmed tornadoes – Saturday, August 12, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | McAlisterville | Juniata | PA | 40°38′46″N 77°16′28″W﻿ / ﻿40.6462°N 77.2744°W﻿ / 40.6462; -77.2744﻿ (McAlisterville (Aug. 12, EF1)) | 19:12–19:20 | 5.53 mi (8.90 km) | 200 yd (180 m) | A tractor trailer was flipped, homes and sheds were damaged, and a long swath of trees was snapped and uprooted. The roof was also lifted off of its base at the Juniata Mennonite School. |
| EF0 | ENE of Anton | Washington | CO | 39°47′N 103°09′W﻿ / ﻿39.78°N 103.15°W﻿ / 39.78; -103.15﻿ (Anton (Aug. 12, EF0)) | 23:10 | 0.01 mi (0.016 km) | 25 yd (23 m) | A trained storm spotter reported a tornado over open country. |
| EF0 | S of Akron | Washington | CO | 39°42′N 103°09′W﻿ / ﻿39.7°N 103.15°W﻿ / 39.7; -103.15﻿ (Akron (Aug. 12, EF0)) | 23:27–23:30 | 0.01 mi (0.016 km) | 25 yd (23 m) | The public reported a tornado over open country. |
| EF0 | Anton | Washington | CO | 39°45′N 103°13′W﻿ / ﻿39.75°N 103.22°W﻿ / 39.75; -103.22﻿ (Anton (Aug. 12, EF0)) | 23:30 | 0.01 mi (0.016 km) | 25 yd (23 m) | The public reported a tornado over open country. |
| EF0 | SE of Anton | Washington | CO | 39°41′N 103°08′W﻿ / ﻿39.68°N 103.13°W﻿ / 39.68; -103.13﻿ (Anton (Aug. 12, EF0)) | 23:45 | 0.01 mi (0.016 km) | 25 yd (23 m) | The public reported a tornado over open country. |

### August 13 event

List of confirmed tornadoes – Sunday, August 13, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | NNE of Amarillo | Potter | TX | 35°19′N 101°43′W﻿ / ﻿35.32°N 101.71°W﻿ / 35.32; -101.71﻿ (Amarillo (Aug. 13, EF0)) | 01:00–01:01 | 0.09 mi (0.14 km) | 20 yd (18 m) | A storm chaser observed a tornado. |

### August 15 event

List of confirmed tornadoes – Tuesday, August 15, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | N of Potter | Cheyenne | NE | 41°20′N 103°19′W﻿ / ﻿41.33°N 103.31°W﻿ / 41.33; -103.31﻿ (Potter (Aug. 15, EF0)) | 00:10–00:25 | 6.78 mi (10.91 km) | 50 yd (46 m) | Broadcast media documented a tornado over open country. |

### August 16 event

List of confirmed tornadoes – Wednesday, August 16, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | S of Nicollet | Nicollet | MN | 44°13′40″N 94°10′34″W﻿ / ﻿44.2279°N 94.1762°W﻿ / 44.2279; -94.1762﻿ (Nicollet (Aug. 16, EF0)) | 21:46–21:52 | 3.87 mi (6.23 km) | 75 yd (69 m) | A garage was damaged on a farmstead. Trees were damaged. |
| EF0 | S of Nicollet | Nicollet | MN | 44°14′38″N 94°10′14″W﻿ / ﻿44.244°N 94.1705°W﻿ / 44.244; -94.1705﻿ (Nicollet (Aug. 16, EF0)) | 22:03–22:09 | 1.94 mi (3.12 km) | 25 yd (23 m) | Crops and trees were damaged. |
| EF0 | E of New Sweden | Nicollet | MN | 44°23′38″N 94°11′06″W﻿ / ﻿44.3939°N 94.1851°W﻿ / 44.3939; -94.1851﻿ (New Sweden (Aug. 16, EF0)) | 22:32–22:34 | 1.27 mi (2.04 km) | 20 yd (18 m) | High-resolution satellite imagery confirmed a tornado that damaged corn fields. |
| EF1 | S of Gaylord | Nicollet, Sibley | MN | 44°24′23″N 94°11′51″W﻿ / ﻿44.4065°N 94.1975°W﻿ / 44.4065; -94.1975﻿ (Nicollet (Aug. 16, EF1)) | 22:33–22:48 | 5.22 mi (8.40 km) | 75 yd (69 m) | A multi-vortex tornado struck a farmstead, causing significant damage to trees and outbuildings. |
| EF0 | SW of Gaylord | Sibley | MN | 44°32′16″N 94°14′23″W﻿ / ﻿44.5377°N 94.2398°W﻿ / 44.5377; -94.2398﻿ (Nicollet (Aug. 16, EF0)) | 23:15–23:19 | 1.37 mi (2.20 km) | 60 yd (55 m) | Video and spotter reports indicated a weak tornado crossed a road. |
| EF0 | ENE of Winthrop | Sibley | MN | 44°33′55″N 94°16′03″W﻿ / ﻿44.5654°N 94.2676°W﻿ / 44.5654; -94.2676﻿ (Winthrop (Aug. 16, EF0)) | 23:26–23:33 | 4.08 mi (6.57 km) | 75 yd (69 m) | Corn was flattened; a tree was uprooted and others were damaged. A structurally-compromised barn was destroyed. |
| EF0 | New Prague | Le Sueur, Scott | MN | 44°32′09″N 93°35′07″W﻿ / ﻿44.5359°N 93.5852°W﻿ / 44.5359; -93.5852﻿ (New Prague (Aug. 16, EF0)) | 00:05–00:11 | 1.26 mi (2.03 km) | 10 yd (9.1 m) | Minor damage to trees was noted. |
| EF0 | SW of Stewart | Sibley | MN | 44°41′38″N 94°30′35″W﻿ / ﻿44.694°N 94.5097°W﻿ / 44.694; -94.5097﻿ (Stewart (Aug. 16, EF0)) | 00:21–00:22 | 0.61 mi (0.98 km) | 25 yd (23 m) | A storm chaser videoed a tornado. |
| EF1 | W of Freeport | Stephenson | IL | 42°16′27″N 89°43′54″W﻿ / ﻿42.2741°N 89.7316°W﻿ / 42.2741; -89.7316﻿ (Freeport (Aug. 16, EF1)) | 00:21–00:28 | 2.79 mi (4.49 km) | 75 yd (69 m) | Numerous trees were damaged. Two homes suffered minor damage. |
| EF1 | WNW of Elizabeth | Jo Daviess | IL | 42°20′29″N 90°19′07″W﻿ / ﻿42.3414°N 90.3187°W﻿ / 42.3414; -90.3187﻿ (Elizabeth (Aug. 16, EF1)) | 00:22–00:24 | 0.54 mi (0.87 km) | 60 yd (55 m) | Large walnut trees were snapped and uprooted. |
| EF0 | WNW of Freeport | Stephenson | IL | 42°19′20″N 89°42′43″W﻿ / ﻿42.3222°N 89.7119°W﻿ / 42.3222; -89.7119﻿ (Freeport (Aug. 16, EF0)) | 00:28–00:38 | 3.25 mi (5.23 km) | 20 yd (18 m) | Trees were damaged. |
| EF0 | NW of Prior Lake | Scott | MN | 44°43′29″N 93°28′15″W﻿ / ﻿44.7246°N 93.4707°W﻿ / 44.7246; -93.4707﻿ (Prior Lake (Aug. 16, EF0)) | 00:46–00:49 | 1.2 mi (1.9 km) | 75 yd (69 m) | Fencing and tents were downed, trees were uprooted, and a fish house was rotated. |
| EF0 | NW of Biscay | McLeod | MN | 44°51′06″N 94°18′32″W﻿ / ﻿44.8517°N 94.3090°W﻿ / 44.8517; -94.3090﻿ (Biscay (Aug. 16, EF0)) | 01:05–01:07 | 0.77 mi (1.24 km) | 50 yd (46 m) | Corn was damaged. |
| EF0 | Southern Lester Prairie | McLeod | MN | 44°52′49″N 94°02′47″W﻿ / ﻿44.8802°N 94.0465°W﻿ / 44.8802; -94.0465﻿ (Lester Prairie (Aug. 16, EF0)) | 01:08–01:09 | 0.05 mi (0.080 km) | 30 yd (27 m) | Some trees were uprooted and tree limbs were broken in the southern part of town. |

### August 17 event

List of confirmed tornadoes – Thursday, August 17, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | ESE of Cortland | Trumbull | OH | 41°18′44″N 80°39′22″W﻿ / ﻿41.3121°N 80.6561°W﻿ / 41.3121; -80.6561﻿ (Cortland (Aug. 17, EF1)) | 23:11–23:19 | 1.04 mi (1.67 km) | 100 yd (91 m) | Over 100 trees were snapped and uprooted. A mobile home was moved, with several pieces of aluminum siding and insulation displaced. |
| EF0 | SE of Lupton | Ogemaw | MI | 44°24′06″N 83°58′27″W﻿ / ﻿44.4016°N 83.9742°W﻿ / 44.4016; -83.9742﻿ (Lupton (Aug. 17, EF0)) | 23:34–23:35 | 0.26 mi (0.42 km) | 75 yd (69 m) | A few houses, an outbuilding, and several boats and docks were damaged. |
| EF0 | SE of Kingston | Tuscola | MI | 43°23′28″N 83°08′46″W﻿ / ﻿43.391°N 83.146°W﻿ / 43.391; -83.146﻿ (Kingston (Aug. 17, EF0)) | 01:10–01:17 | 3.07 mi (4.94 km) | 100 yd (91 m) | Sporadic tree and crop damage was observed, as well as the removal of roofing material from an outbuilding. |

### August 18 event

List of confirmed tornadoes – Friday, August 18, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SW of Fellsmere | Indian River | FL | 27°42′54″N 80°41′09″W﻿ / ﻿27.715°N 80.6857°W﻿ / 27.715; -80.6857﻿ (Fellsmere (Aug. 18, EF0)) | 21:40–21:43 | 0.18 mi (0.29 km) | 20 yd (18 m) | A sheriff's deputy observed a landspout tornado. |
| EF0 | SW of Rockledge | Brevard | FL | 28°18′58″N 80°44′48″W﻿ / ﻿28.3162°N 80.7468°W﻿ / 28.3162; -80.7468﻿ (Rockledge (Aug. 18, EF0)) | 22:29–22:30 | 0.36 mi (0.58 km) | 15 yd (14 m) | A home's roof was peeled back from an overhanging and partially removed. Minor damage occurred to a screen porch, a carport, trees, and fences. |
| EF1 | NW of Rushmore | Nobles | MN | 43°39′N 95°50′W﻿ / ﻿43.65°N 95.84°W﻿ / 43.65; -95.84﻿ (Rushmore (Aug. 18, EF1)) | 00:26–00:35 | 3.03 mi (4.88 km) | 100 yd (91 m) | Crops were damaged, and a hog farm sustained damage, killing 20 to 30 hogs inside. |
| EF1 | WNW of Rushmore | Nobles | MN | 43°38′N 95°49′W﻿ / ﻿43.63°N 95.82°W﻿ / 43.63; -95.82﻿ (Rushmore (Aug. 18, EF1)) | 00:37–00:43 | 1.34 mi (2.16 km) | 100 yd (91 m) | Crops were damaged. |
| EF1 | Bigelow | Nobles, Osceola | MN, IA | 43°30′05″N 95°44′24″W﻿ / ﻿43.5014°N 95.7401°W﻿ / 43.5014; -95.7401﻿ (Bigelow (Aug. 18, EF1)) | 00:47–00:54 | 1.63 mi (2.62 km) | 100 yd (91 m) | Crops were damaged, a grain bin was rolled, and a garage was destroyed. |
| EF2 | NW of Melvin | Osceola | IA | 43°20′N 95°41′W﻿ / ﻿43.34°N 95.68°W﻿ / 43.34; -95.68﻿ (Melvin (Aug. 18, EF2)) | 01:07–01:27 | 5.14 mi (8.27 km) | 250 yd (230 m) | Large trees were snapped or uprooted, corn was flattened, and farm buildings were damaged or destroyed. A pickup truck was overturned, and up to 30 head of cattle were missing after the tornado. |
| EF0 | ESE of Larrabee | Cherokee | IA | 42°51′N 95°29′W﻿ / ﻿42.85°N 95.49°W﻿ / 42.85; -95.49﻿ (Larrabee (Aug. 18, EF0)) | 02:21–02:25 | 0.81 mi (1.30 km) | 50 yd (46 m) | Trees and crops sustained minor damage. |

### August 19 event

List of confirmed tornadoes – Saturday, August 19, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | NW of Almeria | Loup | NE | 41°56′N 99°40′W﻿ / ﻿41.93°N 99.66°W﻿ / 41.93; -99.66﻿ (Almeria (Aug. 19, EF0)) | 00:40 | 0.1 mi (0.16 km) | 10 yd (9.1 m) | A debris signature was evident on radar. |
| EF1 | NW of Almeria | Loup | NE | 41°52′N 99°36′W﻿ / ﻿41.87°N 99.6°W﻿ / 41.87; -99.6﻿ (Almeria (Aug. 19, EF1)) | 00:48–00:50 | 2.3 mi (3.7 km) | 840 yd (770 m) | Wooden power poles were snapped, trees were damaged, and a large corrugated metal quonset hut was twisted and collapsed. |
| EF1 | NW of Almeria | Loup | NE | 41°52′N 99°35′W﻿ / ﻿41.87°N 99.59°W﻿ / 41.87; -99.59﻿ (Almeria (Aug. 19, EF1)) | 00:48–00:50 | 0.69 mi (1.11 km) | 330 yd (300 m) | An outbuilding was flipped and severe tree damage was noted. |
| EF0 | W of Almeria | Loup | NE | 41°50′N 99°35′W﻿ / ﻿41.84°N 99.59°W﻿ / 41.84; -99.59﻿ (Almeria (Aug. 19, EF0)) | 01:03 | 0.1 mi (0.16 km) | 10 yd (9.1 m) | An emergency manager reported a brief tornado. |
| EF2 | W of Almeria | Loup | NE | 41°49′46″N 99°34′50″W﻿ / ﻿41.8294°N 99.5806°W﻿ / 41.8294; -99.5806﻿ (Almeria (Aug. 19, EF2)) | 01:14–01:17 | 0.65 mi (1.05 km) | 540 yd (490 m) | Numerous trees were snapped and twisted, and all outbuildings were destroyed at a farmstead. Debris from the outbuildings was scattered up to a half-mile away. A boat from this location was thrown and destroyed, with parts found in a field less than a mile away. A house sustained roof damage and sustained damage from projectiles. |

### August 21 event

List of confirmed tornadoes – Monday, August 21, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SW of Ames | Boone, Story | IA | 41°56′56″N 93°43′32″W﻿ / ﻿41.949°N 93.7256°W﻿ / 41.949; -93.7256﻿ (Ames (Aug. 21, EF0)) | 22:52–22:55 | 3.28 mi (5.28 km) | 60 yd (55 m) | High-resolution satellite image indicated a tornado damaged trees. |
| EF0 | SE of Ames | Story | IA | 41°56′59″N 93°33′41″W﻿ / ﻿41.9496°N 93.5614°W﻿ / 41.9496; -93.5614﻿ (Ames (Aug. 21, EF0)) | 22:58–22:59 | 1.08 mi (1.74 km) | 10 yd (9.1 m) | High-resolution satellite image indicated a tornado damaged bean and corn fields. |

### August 22 event

List of confirmed tornadoes – Tuesday, August 22, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | N of Brave | Greene | PA | 39°45′29″N 80°17′14″W﻿ / ﻿39.7580°N 80.2871°W﻿ / 39.7580; -80.2871﻿ (Brave (Aug. 22, EF1)) | 20:23–20:25 | 1.5 mi (2.4 km) | 250 yd (230 m) | Numerous trees were snapped at their trunks or uprooted. A home lost a majority of its roof, as well as its deck; a piece of deck became a missile that was driven into the windshield of a vehicle. A 35 lb (16 kg) battery in front of a camper was lifted and tossed 20 yards. |
| EF1 | NW of Georgetown | Madison | NY | 42°48′15″N 75°44′25″W﻿ / ﻿42.8041°N 75.7403°W﻿ / 42.8041; -75.7403﻿ (Georgetown (Aug. 22, EF1)) | 20:55–20:56 | 0.15 mi (0.24 km) | 30 yd (27 m) | Extensive tree damage was observed in a forest. |
| EF1 | NW of Brookfield | Madison | NY | 42°51′26″N 75°25′54″W﻿ / ﻿42.8571°N 75.4318°W﻿ / 42.8571; -75.4318﻿ (Brookfield (Aug. 22, EF1)) | 21:25–21:26 | 0.43 mi (0.69 km) | 150 yd (140 m) | A couple dozen trees were downed. A greenhouse had its entire roof ripped off, while two barns had portions of their roofs blown off. A home lost a few shingles. |

### August 25 event

Events were associated with Hurricane Harvey.
List of confirmed tornadoes – Friday, August 25, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | NE of Galveston | Galveston | TX | 29°18′37″N 94°46′12″W﻿ / ﻿29.3104°N 94.7699°W﻿ / 29.3104; -94.7699﻿ (Galveston (Aug. 25, EF0)) | 19:18–19:19 | 0.12 mi (0.19 km) | 20 yd (18 m) | A metal fence was damaged. |
| EF0 | WSW of Jones Creek | Brazoria | TX | 28°58′52″N 95°28′59″W﻿ / ﻿28.9811°N 95.483°W﻿ / 28.9811; -95.483﻿ (Jones Creek (Aug. 25, EF0)) | 20:30–20:31 | 0.23 mi (0.37 km) | 30 yd (27 m) | Numerous trees were snapped or uprooted. A barn was damaged. |
| EF1 | SW of Jones Creek | Matagorda | TX | 28°46′12″N 95°37′32″W﻿ / ﻿28.7699°N 95.6255°W﻿ / 28.7699; -95.6255﻿ (Jones Creek (Aug. 25, EF1)) | 21:08–21:14 | 2.18 mi (3.51 km) | 50 yd (46 m) | A home sustained significant damage, a motor home was overturned, and numerous trees were snapped or downed. Several other houses and businesses sustained minor roof damage. |
| EF0 | ENE of Seadrift | Calhoun | TX | 28°25′26″N 96°40′02″W﻿ / ﻿28.4239°N 96.6671°W﻿ / 28.4239; -96.6671﻿ (Seadrift (Aug. 25, EF0)) | 21:14–21:15 | 0.16 mi (0.26 km) | 20 yd (18 m) | A shed and a carport were destroyed. |
| EF0 | SW of Angleton | Brazoria | TX | 29°08′47″N 95°32′41″W﻿ / ﻿29.1464°N 95.5448°W﻿ / 29.1464; -95.5448﻿ (Angelton (Aug. 25, EF0)) | 23:11–23:20 | 3.98 mi (6.41 km) | 50 yd (46 m) | Numerous trees, roofs, and outbuildings were damaged. A barn and several outbuildings were destroyed. |
| EF0 | SSW of Danbury | Brazoria | TX | 29°13′18″N 95°21′02″W﻿ / ﻿29.2216°N 95.3505°W﻿ / 29.2216; -95.3505﻿ (Danbury (Aug. 25, EF0)) | 03:44–03:52 | 4.76 mi (7.66 km) | 50 yd (46 m) | A barn and several trees were damaged. |

### August 26 event

Texas and Louisiana events were associated with Hurricane Harvey.
List of confirmed tornadoes – Saturday, August 26, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | W of Liverpool | Brazoria | TX | 29°17′55″N 95°18′16″W﻿ / ﻿29.2987°N 95.3045°W﻿ / 29.2987; -95.3045﻿ (Liverpool (Aug. 26, EF0)) | 05:28–05:37 | 4.31 mi (6.94 km) | 50 yd (46 m) | Four power poles and several trees were downed. Some barns and outbuildings were damaged. |
| EF0 | W of Iowa Colony | Brazoria, Fort Bend | TX | 29°26′16″N 95°27′00″W﻿ / ﻿29.4379°N 95.45°W﻿ / 29.4379; -95.45﻿ (Iowa Colony (Aug. 26, EF0)) | 05:50–05:57 | 1.57 mi (2.53 km) | 50 yd (46 m) | Roofs and fences were damaged in a fairly new subdivision. Trees were snapped or downed. |
| EF1 | SW of Fresno | Fort Bend | TX | 29°29′14″N 95°31′01″W﻿ / ﻿29.4873°N 95.517°W﻿ / 29.4873; -95.517﻿ (Fresno (Aug. 26, EF0)) | 05:56–05:59 | 1.46 mi (2.35 km) | 100 yd (91 m) | Homes were damaged, resulting in minor injuries. A responding police deputy was blown off the road. |
| EF0 | S of Egypt | Wharton | TX | 29°20′32″N 96°15′00″W﻿ / ﻿29.3421°N 96.25°W﻿ / 29.3421; -96.25﻿ (Egypt (Aug. 26, EF0)) | 07:10–07:12 | 1.45 mi (2.33 km) | 30 yd (27 m) | A tornado debris signature was spotted on radar. |
| EF0 | WNW of Pecan Grove | Fort Bend | TX | 29°42′N 95°46′W﻿ / ﻿29.7°N 95.76°W﻿ / 29.7; -95.76﻿ (Pecan Grove (Aug. 26, EF0)) | 07:12–07:14 | 0.11 mi (0.18 km) | 30 yd (27 m) | A home sustained minor roof damage. |
| EF0 | SE of Humble | Harris | TX | 29°55′27″N 95°09′06″W﻿ / ﻿29.9243°N 95.1516°W﻿ / 29.9243; -95.1516﻿ (Humble (Aug. 26, EF0)) | 09:30–09:32 | 1.02 mi (1.64 km) | 30 yd (27 m) | Roof, tree, and fence damage was reported by broadcast media. |
| EF1 | WSW of Katy | Fort Bend, Waller | TX | 29°46′32″N 95°50′39″W﻿ / ﻿29.7756°N 95.8442°W﻿ / 29.7756; -95.8442﻿ (Katy (Aug. 26, EF0)) | 09:57–10:00 | 0.4 mi (0.64 km) | 50 yd (46 m) | An RV boat and storage facility sustained significant damage. |
| EF0 | S of College Station | Brazos | TX | 30°28′49″N 96°18′54″W﻿ / ﻿30.4803°N 96.315°W﻿ / 30.4803; -96.315﻿ (College Station (Aug. 26, EF0)) | 13:05–13:06 | 0.16 mi (0.26 km) | 20 yd (18 m) | Tree damage was reported. |
| EF0 | SE of Hackberry | Cameron | LA | 29°58′09″N 93°20′58″W﻿ / ﻿29.9692°N 93.3495°W﻿ / 29.9692; -93.3495﻿ (Hackberry (Aug. 26, EF0)) | 17:22–17:25 | 1.66 mi (2.67 km) | 25 yd (23 m) | A travel trailer was rolled onto its side, and shingles were ripped off a home. |
| EF0 | SW of Oelrichs | Fall River | SD | 43°03′34″N 103°17′44″W﻿ / ﻿43.0595°N 103.2956°W﻿ / 43.0595; -103.2956﻿ (Oelrichs (Aug. 26, EF0)) | 21:20–21:21 | 0.66 mi (1.06 km) | 10 yd (9.1 m) | Tree damage was observed. |
| EF1 | W of Jersey Village | Harris | TX | 29°54′25″N 95°41′14″W﻿ / ﻿29.907°N 95.6872°W﻿ / 29.907; -95.6872﻿ (Jersey Village (Aug. 26, EF1)) | 20:50–20:57 | 0.94 mi (1.51 km) | 50 yd (46 m) | Trees were blown over and minor roof damage was reported. |
| EF0 | NW of Jersey Village | Harris | TX | 29°57′10″N 95°40′13″W﻿ / ﻿29.9528°N 95.6704°W﻿ / 29.9528; -95.6704﻿ (Jersey Village (Aug. 26, EF0)) | 21:20–21:22 | 0.52 mi (0.84 km) | 50 yd (46 m) | Evidence of a tornado was relayed through social media. |
| EF0 | NW of East Bernard | Wharton | TX | 29°32′38″N 96°05′04″W﻿ / ﻿29.5438°N 96.0845°W﻿ / 29.5438; -96.0845﻿ (East Bernard (Aug. 26, EF0)) | 22:23–22:26 | 0.54 mi (0.87 km) | 30 yd (27 m) | Trees were downed, a home was damaged, and a horse trailer was overturned. |
| EF1 | S of Stafford | Fort Bend | TX | 29°34′14″N 95°30′45″W﻿ / ﻿29.5706°N 95.5125°W﻿ / 29.5706; -95.5125﻿ (Stafford (Aug. 26, EF1)) | 01:15–01:23 | 5.78 mi (9.30 km) | 100 yd (91 m) | Damage to 28 homes was reported, with some sustaining higher-end EF1 impacts. |
| EF0 | Samoset | Manatee | FL | 27°28′37″N 82°33′14″W﻿ / ﻿27.4769°N 82.554°W﻿ / 27.4769; -82.554﻿ (Samoset (Aug. 26, EF0)) | 01:19–01:22 | 0.32 mi (0.51 km) | 50 yd (46 m) | A County Public Works Facility sustained minor damage. Aluminum debris was tossed, and several trees and large limbs were downed. |

### August 27 event

Events were associated with Hurricane Harvey.
List of confirmed tornadoes – Sunday, August 27, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Webster | Harris | TX | 29°33′N 95°07′W﻿ / ﻿29.55°N 95.11°W﻿ / 29.55; -95.11﻿ (Webster (Aug. 27, EF0)) | 05:00–05:02 | 0.03 mi (0.048 km) | 30 yd (27 m) | Brief tornado heavily damaged a gas station awning. |
| EF1 | East Bernard | Wharton | TX | 29°31′29″N 96°04′01″W﻿ / ﻿29.5246°N 96.0669°W﻿ / 29.5246; -96.0669﻿ (East Bernard (Aug. 27, EF1)) | 06:43–06:47 | 2.27 mi (3.65 km) | 50 yd (46 m) | Several large mature oak and pecan trees were snapped. A house sustained significant brick facade damage, and four apartments were damaged in town. |
| EF0 | NW of Bacliff | Galveston | TX | 29°30′38″N 95°00′21″W﻿ / ﻿29.5106°N 95.0057°W﻿ / 29.5106; -95.0057﻿ (Bacliff (Aug. 27, EF0)) | 09:03–09:07 | 0.73 mi (1.17 km) | 30 yd (27 m) | Trees were downed and roofs sustained minor damage. |
| EF0 | ENE of West University | Harris | TX | 29°43′01″N 95°24′54″W﻿ / ﻿29.717°N 95.4151°W﻿ / 29.717; -95.4151﻿ (West University (Aug. 27, EF0)) | 15:15–15:16 | 0.08 mi (0.13 km) | 20 yd (18 m) | Windows were blown out at the Torchy's Tacos and Banana Republic. |
| EF0 | NNW of Erath | Vermilion | LA | 29°59′21″N 92°02′29″W﻿ / ﻿29.9893°N 92.0415°W﻿ / 29.9893; -92.0415﻿ (Erath (Aug. 27, EF0)) | 19:15–19:17 | 0.21 mi (0.34 km) | 25 yd (23 m) | Tin was pulled off a large barn, a travel trailer was tipped over, and a large section of a sugar cane field was blown over. |
| EF0 | NE of Lydia | Iberia | LA | 29°58′15″N 91°45′21″W﻿ / ﻿29.9708°N 91.7559°W﻿ / 29.9708; -91.7559﻿ (Lydia (Aug. 27, EF0)) | 19:35–19:36 | 0.15 mi (0.24 km) | 25 yd (23 m) | A tornado was videoed in a sugar cane field. |

### August 28 event

Events were associated with Hurricane Harvey.
List of confirmed tornadoes – Monday, August 28, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | W of Johnson Bayou | Cameron | LA | 29°45′50″N 93°42′36″W﻿ / ﻿29.7638°N 93.71°W﻿ / 29.7638; -93.71﻿ (Johnson Bayou (Aug. 28, EF0)) | 09:39–09:41 | 0.28 mi (0.45 km) | 25 yd (23 m) | A shed was flipped, trees were damaged, and a portion of roofing was ripped from a home. |

### August 29 event

Events were associated with Hurricane Harvey.
List of confirmed tornadoes – Tuesday, August 29, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SSE of Wright | Vermilion | LA | 29°58′N 92°25′W﻿ / ﻿29.96°N 92.41°W﻿ / 29.96; -92.41﻿ (Wright (Aug. 29, EF0)) | 22:00–22:01 | 0.02 mi (0.032 km) | 25 yd (23 m) | An emergency manager witnessed a tornado in an open field. |
| EF2 | S of Evangeline | Acadia | LA | 30°13′39″N 92°34′39″W﻿ / ﻿30.2276°N 92.5776°W﻿ / 30.2276; -92.5776﻿ (Evangeline (Aug. 29, EF2)) | 22:09–22:15 | 2.18 mi (3.51 km) | 175 yd (160 m) | Numerous trees were snapped or uprooted and a small trailer was flipped. Four homes, a pick-up truck, a motorcycle, and fencing were damaged. Of the homes damaged, two sustained roof damage, one was moved off its blocks, and one was destroyed, with a majority of its roof removed and exterior walls collapsed. Three power poles were downed. |
| EF0 | Ridge | Lafayette | LA | 30°10′N 92°11′W﻿ / ﻿30.16°N 92.18°W﻿ / 30.16; -92.18﻿ (Ridge (Aug. 29, EF0)) | 22:34–22:35 | 0.14 mi (0.23 km) | 25 yd (23 m) | A tornado briefly touched down but caused no damage. |

### August 30 event

Events were associated with Hurricane Harvey.
List of confirmed tornadoes – Wednesday, August 30, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Biloxi | Harrison | MS | 30°23′46″N 88°54′44″W﻿ / ﻿30.3962°N 88.9121°W﻿ / 30.3962; -88.9121﻿ (Biloxi (Aug. 30, EF0)) | 06:00–06:02 | 0.15 mi (0.24 km) | 30 yd (27 m) | Minor tree damage was observed. Two homes and a vehicle were damaged. |
| EF0 | SW of Pascagoula | Jackson | MS | 30°20′35″N 88°32′52″W﻿ / ﻿30.3431°N 88.5479°W﻿ / 30.3431; -88.5479﻿ (Pascagoula (Aug. 30, EF0)) | 07:20–07:22 | 0.25 mi (0.40 km) | 200 yd (180 m) | A waterspout moved ashore, producing light to moderate damage to trees, fences, and two homes. |
| EF1 | W of Purvis | Lamar | MS | 31°09′38″N 89°32′11″W﻿ / ﻿31.1606°N 89.5365°W﻿ / 31.1606; -89.5365﻿ (Purvis (Aug. 30, EF1)) | 15:04–15:07 | 1.71 mi (2.75 km) | 100 yd (91 m) | Numerous pine trees were snapped or uprooted, and a V-based truss tower was downed. Much of the area was inaccessible due to power crews working to repair a downed transmission line. Further investigation is pending. |
| EF1 | Silver Run | Pearl River | MS | 30°43′26″N 89°21′42″W﻿ / ﻿30.7239°N 89.3618°W﻿ / 30.7239; -89.3618﻿ (Silver Run (Aug. 30, EF1)) | 15:07–15:13 | 3.25 mi (5.23 km) | 200 yd (180 m) | A large farmstead saw two of its barns heavily damaged. Large trees were split as well. Unusual phenomenon was observed, including a small tree limb that was wedged between a window frame and the brick wall without breaking the glass, and walnuts that were driven through airborne roofing shingles, leaving holes. |
| EF0 | Gulf Park Estates | Jackson | MS | 30°21′50″N 88°46′08″W﻿ / ﻿30.3638°N 88.769°W﻿ / 30.3638; -88.769﻿ (Gulf Park Estates (Aug. 30, EF0)) | 16:31–16:35 | 2.32 mi (3.73 km) | 250 yd (230 m) | A large waterspout moved ashore, producing mainly tree damage, inflicting minor awning and shingle damage, and tossing light objects. Tin sheeting was flung into trees, and several fences were blown down. |
| EF1 | WNW of Petal | Forrest | MS | 31°20′46″N 89°16′09″W﻿ / ﻿31.3462°N 89.2692°W﻿ / 31.3462; -89.2692﻿ (Petal (Aug. 30, EF1)) | 16:41–16:45 | 1.26 mi (2.03 km) | 160 yd (150 m) | Two businesses sustained minor roof damage. Several trees were uprooted, resulting in two crushed vehicles, and a fence was downed. |
| EF0 | N of Bassfield | Jefferson Davis | MS | 31°34′07″N 89°45′05″W﻿ / ﻿31.5687°N 89.7513°W﻿ / 31.5687; -89.7513﻿ (Bassfield (Aug. 30, EF0)) | 17:35–17:37 | 1.08 mi (1.74 km) | 50 yd (46 m) | A large tree was downed onto a truck. Other tree limbs and debris were downed. |

### August 31 event

Events were associated with Hurricane Harvey.
List of confirmed tornadoes – Thursday, August 31, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | S of Helena | Phillips | AR | 34°28′30″N 90°37′27″W﻿ / ﻿34.4751°N 90.6242°W﻿ / 34.4751; -90.6242﻿ (Helena (Aug. 31, EF0)) | 13:19–13:22 | 1.71 mi (2.75 km) | 50 yd (46 m) | A house sustained minor damage. |
| EF0 | SW of Michigan City | Benton | MS | 34°56′44″N 89°18′02″W﻿ / ﻿34.9455°N 89.3006°W﻿ / 34.9455; -89.3006﻿ (Michigan City (Aug. 31, EF0)) | 16:57–16:58 | 0.27 mi (0.43 km) | 30 yd (27 m) | A metal barn was unroofed, and a few trees were uprooted. |
| EF0 | N of Tupelo | Lee | MS | 34°18′52″N 88°43′38″W﻿ / ﻿34.3144°N 88.7272°W﻿ / 34.3144; -88.7272﻿ (Tupelo (Aug. 31, EF0)) | 18:13–18:15 | 1.07 mi (1.72 km) | 40 yd (37 m) | A tornado moved through an open field, causing no damage. |
| EF1 | NW of Fulton | Itawamba | MS | 34°25′46″N 88°30′49″W﻿ / ﻿34.4294°N 88.5135°W﻿ / 34.4294; -88.5135﻿ (Fulton (Aug. 31, EF1)) | 18:23–18:27 | 2.47 mi (3.98 km) | 150 yd (140 m) | Three mobile homes were damaged, one of which was carried 100 ft (30 m). A small commercial building sustained roof damage, and trees were damaged. |
| EF0 | S of Booneville | Prentiss | MS | 34°35′59″N 88°34′04″W﻿ / ﻿34.5998°N 88.5679°W﻿ / 34.5998; -88.5679﻿ (Booneville (Aug. 31, EF0)) | 18:43–18:44 | 0.25 mi (0.40 km) | 30 yd (27 m) | A few trees were uprooted, the roof and carport of an uninhabited home were damaged, and the roof of a barn was damaged. |
| EF0 | WNW of Crump | Hardin | TN | 35°13′46″N 88°20′28″W﻿ / ﻿35.2294°N 88.3411°W﻿ / 35.2294; -88.3411﻿ (Crump (Aug. 31, EF0)) | 20:07–20:09 | 1.25 mi (2.01 km) | 50 yd (46 m) | Irrigation equipment was damaged. |
| EF2 | Western Reform to ESE of Bluff | Pickens, Lamar, Fayette | AL | 33°22′45″N 88°02′04″W﻿ / ﻿33.3793°N 88.0344°W﻿ / 33.3793; -88.0344﻿ (Reform (Aug. 31, EF2)) | 20:40–21:26 | 31.24 mi (50.28 km) | 600 yd (550 m) | This strong, long-tracked tornado was first seen touching down in the western part of Reform live from the ABC 33/40 skycam near Reform Elementary School. The tornado quickly reached it peak intensity as it northeastward, destroying several homes and a mobile home, and flipped vehicles. A small, unanchored frame home was also obliterated and swept from its block foundation. The tornado then weakened, but still caused extensive tree and power line damage as it moved into and through Palmetto, where a fire station was also heavily damaged. Elsewhere along the path, power lines were downed, many trees were snapped and uprooted, and a few homes sustained minor to moderate damage. Six people were injured. |
| EF0 | W of Hohenwald | Perry | TN | 35°32′25″N 87°43′58″W﻿ / ﻿35.5402°N 87.7327°W﻿ / 35.5402; -87.7327﻿ (Hohenwald (Aug. 31, EF0)) | 21:19–21:20 | 0.25 mi (0.40 km) | 50 yd (46 m) | A home lost its porch and most of its metal roof. Several trees were toppled. |
| EF0 | Olive Hill | Hardin | TN | 35°16′01″N 88°01′54″W﻿ / ﻿35.2669°N 88.0316°W﻿ / 35.2669; -88.0316﻿ (Olive Hill (Aug. 31, EF0)) | 22:03–22:04 | 0.75 mi (1.21 km) | 70 yd (64 m) | Carports, sheds, and trees were damaged. |
| EF0 | WNW of Mount Pleasant | Maury | TN | 35°31′04″N 87°13′30″W﻿ / ﻿35.5178°N 87.2251°W﻿ / 35.5178; -87.2251﻿ (Mount Pleasant (Aug. 31, EF0)) | 22:11–22:20 | 3.42 mi (5.50 km) | 75 yd (69 m) | Many large tree limbs were snapped and a number of large trees were uprooted. Sheet metal was ripped off a home's large porch and several farm storage outbuildings and sheds. |
| EF1 | SW of Eoline | Bibb | AL | 32°55′02″N 87°20′04″W﻿ / ﻿32.9173°N 87.3345°W﻿ / 32.9173; -87.3345﻿ (Eoline (Aug. 31, EF1)) | 23:57–00:10 | 6.5 mi (10.5 km) | 100 yd (91 m) | An anchored barn and shed were both collapsed, an unanchored mobile home was rolled over, and numerous trees were snapped. The roofs of an abandoned structure and a shed were damaged. |
| EF1 | SW of West Blocton | Bibb | AL | 33°06′03″N 87°10′18″W﻿ / ﻿33.1008°N 87.1718°W﻿ / 33.1008; -87.1718﻿ (West Blocton (Aug. 31, EF1)) | 00:28–00:30 | 0.56 mi (0.90 km) | 200 yd (180 m) | Numerous trees were snapped or uprooted. |
| EF0 | SE of Woodstock | Bibb | AL | 33°11′46″N 87°07′40″W﻿ / ﻿33.196°N 87.1277°W﻿ / 33.196; -87.1277﻿ (Woodstock (Aug. 31, EF0)) | 00:42–00:44 | 0.3 mi (0.48 km) | 35 yd (32 m) | Several trees were uprooted. |
| EF2 | SE of Holly Pond to NW of Arab | Cullman, Marshall | AL | 34°09′08″N 86°36′21″W﻿ / ﻿34.1522°N 86.6058°W﻿ / 34.1522; -86.6058﻿ (Woodstock (Aug. 31, EF2)) | 01:58–02:17 | 13.63 mi (21.94 km) | 300 yd (270 m) | A strong tornado completely destroyed many chicken houses, with debris scattered hundreds of yards. Many trees and power poles were snapped, and a house sustained minor roof damage. |
| EF1 | Northeastern Nashville | Davidson | TN | 36°12′26″N 86°51′14″W﻿ / ﻿36.2073°N 86.854°W﻿ / 36.2073; -86.854﻿ (Nashville #1 (Aug. 31, EF1)) | 04:21–04:22 | 0.62 mi (1.00 km) | 75 yd (69 m) | A house had a large portion of its roof ripped off. Other homes sustained less severe roof damage, two carports were collapsed, and nearly 100 large trees were snapped or uprooted. |
| EF0 | Southeastern Nashville | Davidson | TN | 36°09′35″N 86°42′28″W﻿ / ﻿36.1597°N 86.7079°W﻿ / 36.1597; -86.7079﻿ (Nashville #2 (Aug. 31, EF0)) | 04:47–04:48 | 0.94 mi (1.51 km) | 50 yd (46 m) | Several trees were uprooted, a small garage and a carport were damaged, and warehouse had a large section of its wall blown out. An 18-wheeler was flipped over as well. |

## September

Confirmed tornadoes by Enhanced Fujita rating :
| EFU | EF0 | EF1 | EF2 | EF3 | EF4 | EF5 | Total |
| 1 | 22 | 24 | 4 | 0 | 0 | 0 | 51 |

### September 1 event

List of confirmed tornadoes – Friday, September 1, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Stump Lake | Nelson | ND | 47°55′N 98°25′W﻿ / ﻿47.92°N 98.42°W﻿ / 47.92; -98.42﻿ (Stump Lake (Sep. 1, EF0)) | 22:30–22:31 | 0.07 mi (0.11 km) | 50 yd (46 m) | A water swirl was noted on the northern end of Stump Lake. |
| EF0 | E of Stump Lake | Nelson | ND | 47°55′N 98°21′W﻿ / ﻿47.91°N 98.35°W﻿ / 47.91; -98.35﻿ (Stump Lake (Sep. 1, EF0)) | 22:38–22:54 | 6.02 mi (9.69 km) | 150 yd (140 m) | A trained storm spotter reported a persistent rope tornado with intermittent dust swirls. |
| EF0 | ENE of Cooperstown | Griggs | ND | 47°30′19″N 98°00′16″W﻿ / ﻿47.5053°N 98.0044°W﻿ / 47.5053; -98.0044﻿ (Cooperstown (Sep. 1, EF0)) | 00:16–00:22 | 1.67 mi (2.69 km) | 150 yd (140 m) | Large tree branches were broken. |

### September 4 event

List of confirmed tornadoes – Monday, September 4, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF2 | W of North Robinson to N of Mansfield | Crawford, Richland | OH | 40°47′21″N 82°52′37″W﻿ / ﻿40.7892°N 82.877°W﻿ / 40.7892; -82.877﻿ (North Robinson (Sep. 4, EF2)) | 02:42–03:02 | 16.67 mi (26.83 km) | 400 yd (370 m) | This strong tornado touched down near North Robinson and struck the northern part of town, where homes were significantly damaged, detached garages were completely destroyed, and severe tree damage occurred. A house outside of town was shifted off of its foundation. The tornado continued east and passed north of Leesville, severely damaging a large barn, causing extensive tree damage, and destroying two outbuildings. North of Crestline, a brick garage collapsed, a house had its roof partially torn off, an outbuilding was destroyed, and many trees or snapped or had their tops twisted off. High-end EF2 damage shortly occurred after the tornado crossed into Richland County, as a home had half of its roof torn off and a few exterior walls collapsed. Two residents at this home were injured after being thrown from their bedroom into the yard. A nearby garage was completely destroyed, with debris and a riding mower thrown 100 yards downwind. Less severe tree and structural damage occurred along the remainder of the path before the tornado dissipated near Mansfield. |

### September 9 event

Florida events were associated with Hurricane Irma.
List of confirmed tornadoes – Saturday, September 9, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | ESE of Miramar | Broward | FL | 25°59′16″N 80°22′32″W﻿ / ﻿25.9878°N 80.3756°W﻿ / 25.9878; -80.3756﻿ (Miramar (Sep. 9, EF1)) | 12:10–12:11 | 0.1 mi (0.16 km) | 50 yd (46 m) | Sections of trees were completely ripped apart. |
| EF1 | W of Ochopee | Collier | FL | 25°54′08″N 81°19′39″W﻿ / ﻿25.9022°N 81.3274°W﻿ / 25.9022; -81.3274﻿ (Ochopee (Sep. 9, EF1)) | 16:20–16:23 | 0.25 mi (0.40 km) | 50 yd (46 m) | Wooden power poles were leant. |
| EFU | NW of Falcon | El Paso | CO | 38°57′06″N 104°39′05″W﻿ / ﻿38.9517°N 104.6513°W﻿ / 38.9517; -104.6513﻿ (Falcon (Sep. 9, EFU)) | 20:45–20:49 | 0.28 mi (0.45 km) | 50 yd (46 m) | Two brief landspouts caused no damage. |
| EF0 | Wilton Manors | Broward | FL | 26°08′18″N 80°06′14″W﻿ / ﻿26.1383°N 80.1039°W﻿ / 26.1383; -80.1039﻿ (Wilton Manors (Sep. 9, EF0)) | 22:35–22:39 | 1.93 mi (3.11 km) | 100 yd (91 m) | A discontinuous tornado track was discovered. Multiple trees were damaged. |
| EF0 | SE of Homestead | Miami-Dade | FL | 25°26′N 80°23′W﻿ / ﻿25.44°N 80.39°W﻿ / 25.44; -80.39﻿ (Homestead (Sep. 9, EF0)) | 23:20–23:22 | 0.5 mi (0.80 km) | 75 yd (69 m) | A member of the public reported a tornado. |

### September 10 event

Events were associated with Hurricane Irma.
List of confirmed tornadoes – Sunday, September 10, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | NNW of Miramar | Broward | FL | 26°00′50″N 80°24′23″W﻿ / ﻿26.0139°N 80.4065°W﻿ / 26.0139; -80.4065﻿ (Miramar (Sep. 10, EF1)) | 11:40–11:42 | 0.25 mi (0.40 km) | 50 yd (46 m) | Several trees were ripped apart, and roof tiles were damaged. |
| EF1 | N of Wauchula | Hardee | FL | 27°33′54″N 81°48′53″W﻿ / ﻿27.565°N 81.8147°W﻿ / 27.565; -81.8147﻿ (Wauchula (Sep. 10, EF1)) | 12:59–13:01 | 0.03 mi (0.048 km) | 50 yd (46 m) | A business sustained roof damage and power poles were downed. The survey crew experienced trouble differentiating tornadic damage versus hurricane damage. |
| EF0 | Melbourne Beach | Brevard | FL | 28°04′12″N 80°33′30″W﻿ / ﻿28.0701°N 80.5584°W﻿ / 28.0701; -80.5584﻿ (Melbourne (Sep. 10, EF0)) | 13:19 | 0.2 mi (0.32 km) | 50 yd (46 m) | A waterspout moved ashore, causing minor damage to the second floors of two homes. |
| EF1 | ENE of Palm Bay | Brevard | FL | 28°01′54″N 80°34′32″W﻿ / ﻿28.0317°N 80.5755°W﻿ / 28.0317; -80.5755﻿ (Palm Bay (Sep. 10, EF1)) | 15:00–15:02 | 1.33 mi (2.14 km) | 75 yd (69 m) | A waterspout moved ashore, damaging several residences including a waterfront home whose second floor was ripped off and carried downwind. A university building sustained minor roof damage, several mobile homes were heavily damaged or destroyed, and many trees were damaged. |
| EF2 | WSW of Polk City | Polk | FL | 28°09′10″N 81°52′44″W﻿ / ﻿28.1529°N 81.8789°W﻿ / 28.1529; -81.8789﻿ (Polk City (Sep. 10, EF2)) | 15:19–15:21 | 0.59 mi (0.95 km) | 50 yd (46 m) | Seven wooden high power transmission poles were snapped. |
| EF1 | Indialantic | Brevard | FL | 28°05′39″N 80°33′59″W﻿ / ﻿28.0943°N 80.5665°W﻿ / 28.0943; -80.5665﻿ (Melbourne (Sep. 10, EF1)) | 15:24–15:26 | 1.21 mi (1.95 km) | 75 yd (69 m) | A waterspout moved ashore, ripping part of the roof off a beachfront condo and depositing it onto a bank. Damage was inflicted to trees, roof shingles, and the soffits of several homes. |
| EF1 | N of St. Augustine | St. Johns | FL | 29°54′N 81°19′W﻿ / ﻿29.9°N 81.31°W﻿ / 29.9; -81.31﻿ (St. Augustine (Sep. 10, EF1)) | 17:40–17:45 | 1.2 mi (1.9 km) | 50 yd (46 m) | A waterspout moved ashore, causing significant tree damage in Huguenot Cemetery and farther inland. |
| EF2 | N of Mims | Brevard | FL | 28°41′11″N 80°50′12″W﻿ / ﻿28.6864°N 80.8366°W﻿ / 28.6864; -80.8366﻿ (Mims (Sep. 10, EF2)) | 21:48–21:50 | 1.55 mi (2.49 km) | 125 yd (114 m) | Numerous homes were impacted by this strong tornado, several of which were left uninhabitable due to severe roof damage. Many trees were snapped or uprooted, and a pick-up truck was rolled about 30 ft (9.1 m) into a fence. |
| EF1 | NW of Mims | Brevard | FL | 28°41′22″N 80°51′18″W﻿ / ﻿28.6894°N 80.8551°W﻿ / 28.6894; -80.8551﻿ (Mims (Sep. 10, EF1)) | 22:00–22:01 | 0.48 mi (0.77 km) | 60 yd (55 m) | Several trees were snapped or uprooted. Over a dozen homes were damaged in the Northgate Mobile Home Park and RV Park. Several power poles were snapped, one of which landed on a house. Several unoccupied RVs were rolled onto their sides. |
| EF1 | Umatilla | Lake | FL | 28°56′22″N 81°37′26″W﻿ / ﻿28.9394°N 81.6238°W﻿ / 28.9394; -81.6238﻿ (Umatilla (Sep. 10, EF1)) | 22:28–22:30 | 3.84 mi (6.18 km) | 500 yd (460 m) | Several homes had their roofs peeled back. Numerous trees were snapped or uprooted. A scoreboard was toppled and three power poles were snapped at the North Lake Community Park. Approximately 10 recreational vehicles were destroyed and another 25 others were damaged at the Olde Mill RV Resort. The roofs of the Umatilla Inn, an elementary school, and a residence were damaged. |
| EF1 | SSE of Vilano Beach | St. Johns | FL | 29°56′N 81°18′W﻿ / ﻿29.93°N 81.30°W﻿ / 29.93; -81.30﻿ (Vilano Beach (Sep. 10, EF1)) | 23:50–23:56 | 4.99 mi (8.03 km) | 200 yd (180 m) | A waterspout moved ashore in Vilano Beach, snapping and uprooting a few trees. |
| EF1 | Ormond Beach | Volusia | FL | 29°17′24″N 81°03′27″W﻿ / ﻿29.2901°N 81.0574°W﻿ / 29.2901; -81.0574﻿ (Ormond Beach (Sep. 10, EF1)) | 01:04–01:05 | 0.78 mi (1.26 km) | 175 yd (160 m) | A waterspout moved onshore, initially causing minor siding and shingle damage to a few two-story homes. Other houses and two commercial buildings further inland sustained major roof damage. Trees were downed or uprooted. |
| EF1 | Patrick Air Force Base | Brevard | FL | 28°13′49″N 80°35′59″W﻿ / ﻿28.2302°N 80.5997°W﻿ / 28.2302; -80.5997﻿ (Patrick Air Force Base (Sep. 10, EF1)) | 01:04–01:05 | 1.23 mi (1.98 km) | 50 yd (46 m) | A waterspout moved onshore and removed the roof of a small building. Several storage buildings sustained minor to moderate damage, several large steel CONEX storage containers were rolled over 100 ft (30 m) downwind, and antennas mounted on free-standing towers were damaged. Small trees and shrubs were damaged. |
| EF1 | SSE of Rockledge | Brevard | FL | 28°16′45″N 80°41′24″W﻿ / ﻿28.2791°N 80.6899°W﻿ / 28.2791; -80.6899﻿ (Rockledge (Sep. 10, EF1)) | 01:14–01:15 | 0.3 mi (0.48 km) | 60 yd (55 m) | Approximately six homes sustained significant roof damage while several other houses sustained lesser degrees of shingle damage. At least one screen patio was destroyed while several others were damaged; fences were blown over and carried downwind. Numerous trees were snapped or uprooted. |
| EF1 | N of Merritt Island | Brevard | FL | 28°25′02″N 80°40′36″W﻿ / ﻿28.4171°N 80.6767°W﻿ / 28.4171; -80.6767﻿ (Merritt Island (Sep. 10, EF1)) | 01:48–01:50 | 3.36 mi (5.41 km) | 60 yd (55 m) | Over a dozen homes sustained significant shingle damage; six pool screen enclosures were destroyed. Numerous trees were snapped and other homes sustained lesser damage. At the Island Lakes Mobile Home Park, over 25 homes mobile homes were impacted, several of which were destroyed and many others sustained moderate to major damage. The steeple was toppled at the Orsino Baptist Church. |
| EF0 | S of Marineland | Flagler | FL | 29°38′44″N 81°12′36″W﻿ / ﻿29.6455°N 81.21°W﻿ / 29.6455; -81.21﻿ (Marineland (Sep. 10, EF0)) | 04:20–04:30 | 4.12 mi (6.63 km) | 200 yd (180 m) | An aerial survey found a swath of tree damage. |

### September 11 event

Events were associated with Hurricane Irma.
List of confirmed tornadoes – Monday, September 11, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF2 | SE of Crescent Beach | St. Johns | FL | 29°43′N 81°14′W﻿ / ﻿29.72°N 81.23°W﻿ / 29.72; -81.23﻿ (Crescent Beach (Sep. 10, EF2)) | 05:15–05:20 | 1.2 mi (1.9 km) | 300 yd (270 m) | Brief but strong tornado caused major damage to several large condominium buildings, which had roofs torn off and top floor exterior walls collapsed. Tree damage occurred as well. |
| EF0 | NNW of Amelia City | Nassau | FL | 30°37′N 81°34′W﻿ / ﻿30.61°N 81.57°W﻿ / 30.61; -81.57﻿ (Amelia City (Sep. 11, EF0)) | 06:25–06:30 | 5.95 mi (9.58 km) | 100 yd (91 m) | Though the tornado tracked over open territory, a tornado debris signature was noted. |
| EF0 | NNW of Fernandina Beach | Nassau | FL | 30°41′N 81°28′W﻿ / ﻿30.69°N 81.46°W﻿ / 30.69; -81.46﻿ (Fernandina Beach (Sep. 11, EF0)) | 06:25–06:35 | 10.69 mi (17.20 km) | 100 yd (91 m) | Though the tornado tracked over open marsh, a tornado debris signature was noted. |
| EF0 | Joint Base Charleston | Charleston | SC | 32°53′29″N 80°02′37″W﻿ / ﻿32.8915°N 80.0436°W﻿ / 32.8915; -80.0436﻿ (Joint Base Charleston (Sep. 11, EF0)) | 18:48–18:50 | 1.46 mi (2.35 km) | 60 yd (55 m) | On Joint Base Charleston, the edge of the roof on the control tower was pushed back, the fascia of a nearby building was damaged, and the roof of another metal building on the base was damaged. Two large oak trees and several large branches were downed. |
| EF1 | S of Charleston Executive Airport | Charleston | SC | 32°40′30″N 80°00′20″W﻿ / ﻿32.6750°N 80.0055°W﻿ / 32.6750; -80.0055﻿ (Charleston Executive Airport (Sep. 11, EF1)) | 21:45–21:47 | 0.43 mi (0.69 km) | 30 yd (27 m) | A shed was destroyed, and a large live oak tree was snapped (and many other threes were damaged). A well pump and cement anchors for a chain link fence were ripped from the ground. A home was knocked off pilings, sustaining significant roof damage and crushing a pickup truck. |
| EF0 | E of James Island | Charleston | SC | 32°43′35″N 79°54′40″W﻿ / ﻿32.7264°N 79.9111°W﻿ / 32.7264; -79.9111﻿ (James Island (Sep. 11, EF0)) | 22:19–22:21 | 0.12 mi (0.19 km) | 55 yd (50 m) | A residence had part of its roof blown off while a second lost four shutters. Debris carried from the second home inflicted soffit damage to a third. A few trees were damaged. |
| EF0 | NNW of Olar | Bamberg | SC | 33°11′N 81°11′W﻿ / ﻿33.19°N 81.19°W﻿ / 33.19; -81.19﻿ (Olar (Sep. 11, EF0)) | 23:01–23:05 | 2 mi (3.2 km) | 50 yd (46 m) | A few trees and several large limbs were downed. |
| EF0 | E of Mount Pleasant | Charleston | SC | 32°48′10″N 79°50′25″W﻿ / ﻿32.8027°N 79.8403°W﻿ / 32.8027; -79.8403﻿ (Mount Pleasant (Sep. 11, EF0)) | 23:13–23:15 | 0.57 mi (0.92 km) | 90 yd (82 m) | Large tree limbs were downed, a few trees were uprooted, and a wooden fence was toppled. |

### September 13 event

List of confirmed tornadoes – Wednesday, September 13, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Lake Tahoe | Washoe | NV | 39°10′43″N 119°57′38″W﻿ / ﻿39.1785°N 119.9606°W﻿ / 39.1785; -119.9606﻿ (Lake Tahoe (Sep. 13, EF0)) | 22:51–23:15 | 2.01 mi (3.23 km) | 50 yd (46 m) | North Lake Tahoe Fire Protection District reported a confirmed waterspout. |

### September 15 event

List of confirmed tornadoes – Friday, September 15, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | ENE of Windfred | Lake | SD | 44°01′13″N 97°19′07″W﻿ / ﻿44.0202°N 97.3186°W﻿ / 44.0202; -97.3186﻿ (Winfred (Sep. 15, EF0)) | 00:04–00:08 | 0.1 mi (0.16 km) | 100 yd (91 m) | Very old outbuildings at an abandoned farmstead were damaged. |

### September 19 event

List of confirmed tornadoes – Tuesday, September 19, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | ENE of Lacomb | Linn | OR | 44°35′30″N 122°42′15″W﻿ / ﻿44.5918°N 122.7041°W﻿ / 44.5918; -122.7041﻿ (Lacomb (Sep. 19, EF1)) | 20:07–20:15 | 0.69 mi (1.11 km) | 167 yd (153 m) | Several large trees were snapped, five farm buildings were damaged, and two power poles were downed. |
| EF1 | ENE of Litchville | Barnes | ND | 46°40′N 98°10′W﻿ / ﻿46.66°N 98.17°W﻿ / 46.66; -98.17﻿ (Litchville (Sep. 19, EF1)) | 21:41–21:47 | 3.7 mi (6.0 km) | 200 yd (180 m) | Several trees were snapped and uprooted. Roofing material and a door of a shed were damaged. |
| EF1 | SW of Tulare | Spink | SD | 44°40′18″N 98°33′56″W﻿ / ﻿44.6717°N 98.5656°W﻿ / 44.6717; -98.5656﻿ (Tulare (Sep. 19, EF1)) | 00:46–00:57 | 2.75 mi (4.43 km) | 155 yd (142 m) | An outbuilding sustained significant structural and roof damage. A few trees were uprooted. Slight crop damage occurred through a soybean field. An irrigation unit was toppled and corn crop was leveled. |
| EF1 | Beltrami | Norman, Polk | MN | 47°29′N 96°32′W﻿ / ﻿47.48°N 96.53°W﻿ / 47.48; -96.53﻿ (Beltrami (Sep. 19, EF1)) | 00:50–01:01 | 4.57 mi (7.35 km) | 100 yd (91 m) | Several trees were snapped, while a metal garage and metal storage building in town were damaged with debris scattered through a nearby field. |
| EF0 | SW of Clark | Clark | SD | 44°50′02″N 97°47′46″W﻿ / ﻿44.8338°N 97.7961°W﻿ / 44.8338; -97.7961﻿ (Clark (Sep. 19, EF0)) | 01:55–01:56 | 0.08 mi (0.13 km) | 10 yd (9.1 m) | A trained storm spotter reported a brief tornado in an open field. |
| EF0 | E of Bradley | Clark | SD | 45°05′25″N 97°37′49″W﻿ / ﻿45.0904°N 97.6304°W﻿ / 45.0904; -97.6304﻿ (Bradley (Sep. 19, EF0)) | 02:26–02:27 | 0.11 mi (0.18 km) | 10 yd (9.1 m) | A WeatherNation meteorologist reported a brief tornado in an open field. |

### September 20 event

List of confirmed tornadoes – Wednesday, September 20, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | S of Montevideo | Chippewa | MN | 44°56′10″N 95°44′06″W﻿ / ﻿44.936°N 95.7351°W﻿ / 44.936; -95.7351﻿ (Montevideo (Sep. 20, EF0)) | 05:18–05:20 | 2.12 mi (3.41 km) | 100 yd (91 m) | Siding and shingles were taken off a few homes. Trees were damaged. |
| EF1 | S of Montevideo | Chippewa | MN | 44°55′17″N 95°43′09″W﻿ / ﻿44.9213°N 95.7191°W﻿ / 44.9213; -95.7191﻿ (Montevideo (Sep. 20, EF1)) | 05:22–05:23 | 0.11 mi (0.18 km) | 80 yd (73 m) | Dozens of trees were snapped and uprooted. |
| EF1 | N of Murdock to N of Sunburg | Swift, Kandiyohi | MN | 45°15′18″N 95°25′23″W﻿ / ﻿45.255°N 95.423°W﻿ / 45.255; -95.423﻿ (Murdock (Sep. 20, EF1)) | 05:28–05:39 | 12.59 mi (20.26 km) | 550 yd (500 m) | A church and a restaurant lost part of their roofs, six empty grain bins were blown apart, and five machine storage sheds were destroyed. Corn fields were destroyed and many trees were downed or snapped. |
| EF1 | NW of Sunburg | Swift, Pope | MN | 45°23′27″N 95°24′41″W﻿ / ﻿45.3909°N 95.4114°W﻿ / 45.3909; -95.4114﻿ (Murdock (Sep. 20, EF1)) | 05:32–05:39 | 9.2 mi (14.8 km) | 880 yd (800 m) | Corn fields were damaged or destroyed. Part of the roof was ripped from a turkey barn, a mobile home was rolled, and two machine sheds and several outbuildings were destroyed. A modular home had its windows blown in, porch blown away, and roof uplifted. Trees were damaged. |
| EF0 | Belgrade | Stearns | MN | 45°27′10″N 95°00′32″W﻿ / ﻿45.4528°N 95.009°W﻿ / 45.4528; -95.009﻿ (Belgrade (Sep. 20, EF0)) | 05:48–05:49 | 1.16 mi (1.87 km) | 330 yd (300 m) | Several dozen trees were downed, many of which landed on cars and sheds, and one of which landed on a mobile home. A storage building was destroyed. |
| EF1 | N of Elrosa | Stearns | MN | 45°33′02″N 95°03′26″W﻿ / ﻿45.5505°N 95.0572°W﻿ / 45.5505; -95.0572﻿ (Elrosa (Sep. 20, EF1)) | 05:49–05:56 | 8.18 mi (13.16 km) | 360 yd (330 m) | Several metal sheds were destroyed on a farm. Many trees were downed or uprooted, and crops were severely damaged, especially corn crops ready for harvest. |
| EF1 | W of Swanville | Todd | MN | 45°52′55″N 94°44′33″W﻿ / ﻿45.882°N 94.7425°W﻿ / 45.882; -94.7425﻿ (Swanville (Sep. 20, EF1)) | 06:04–06:11 | 6.75 mi (10.86 km) | 440 yd (400 m) | A number of lake homes and cabins sustained roof damage. A boat and attached dock in the community of Pillsbury were blown westward into Long Lake. Dozens of trees were downed or snapped. One home was shifted off its foundation while another sustained roof and window damage. |

### September 21 event

List of confirmed tornadoes – Thursday, September 21, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Lake Tahoe | Douglas | NV | 39°02′N 119°58′W﻿ / ﻿39.04°N 119.97°W﻿ / 39.04; -119.97﻿ (Lake Tahoe (Sep. 21, EF0)) | 22:29–22:34 | 0.44 mi (0.71 km) | 20 yd (18 m) | A citizen reported two brief waterspouts on Lake Tahoe. |

### September 25 event

List of confirmed tornadoes – Monday, September 25, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Lake Corpus Christi | Live Oak | TX | 28°03′11″N 97°53′32″W﻿ / ﻿28.0531°N 97.8921°W﻿ / 28.0531; -97.8921﻿ (Lake Corpus Christi (Sep. 25, EF0)) | 19:10–19:11 | 0.1 mi (0.16 km) | 15 yd (14 m) | Law enforcement reported a waterspout on Lake Corpus Christi. |

### September 30 event

List of confirmed tornadoes – Saturday, September 30, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SE of Laguna | Cibola | NM | 34°57′40″N 107°11′14″W﻿ / ﻿34.9611°N 107.1871°W﻿ / 34.9611; -107.1871﻿ (Laguna (Sep. 30, EF0)) | 20:55–20:57 | 2.45 mi (3.94 km) | 30 yd (27 m) | An emergency manager reported a tornado. |

## October

Confirmed tornadoes by Enhanced Fujita rating :
| EFU | EF0 | EF1 | EF2 | EF3 | EF4 | EF5 | Total |
| 2 | 32 | 32 | 6 | 0 | 0 | 0 | 72 |

### October 2 event

List of confirmed tornadoes – Monday, October 2, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | N of Morland | Graham | KS | 39°22′43″N 100°07′20″W﻿ / ﻿39.3785°N 100.1223°W﻿ / 39.3785; -100.1223﻿ (Hill City (Oct. 2, EF0)) | 22:53–22:59 | 3.4 mi (5.5 km) | 100 yd (91 m) | A storm chaser reported a tornado. |
| EF0 | NE of Hill City | Graham | KS | 39°27′28″N 99°46′26″W﻿ / ﻿39.4578°N 99.7739°W﻿ / 39.4578; -99.7739﻿ (Morland (Oct. 2, EF0)) | 23:30–23:31 | 0.59 mi (0.95 km) | 100 yd (91 m) | A storm chaser reported a tornado. |
| EF0 | NNW of Webster | Rooks | KS | 39°33′00″N 99°28′31″W﻿ / ﻿39.5499°N 99.4754°W﻿ / 39.5499; -99.4754﻿ (Webster (Oct. 2, EF0)) | 23:57 | 0.01 mi (0.016 km) | 15 yd (14 m) | Multiple people reported a tornado. |
| EF0 | NNW of Modoc | Scott | KS | 38°33′04″N 101°07′07″W﻿ / ﻿38.5512°N 101.1186°W﻿ / 38.5512; -101.1186﻿ (Modoc (Oct. 2, EF0)) | 23:53–23:57 | 4.47 mi (7.19 km) | 100 yd (91 m) | A well-documented tornado caused light damage. |
| EF1 | NNW of Modoc | Scott | KS | 38°32′36″N 101°01′54″W﻿ / ﻿38.5434°N 101.0318°W﻿ / 38.5434; -101.0318﻿ (Modoc (Oct. 2, EF1)) | 00:02–00:05 | 2.5 mi (4.0 km) | 150 yd (140 m) | Irrigation sprinklers, power poles, and trees were damaged. |
| EF2 | S of Elkader | Scott, Gove | KS | 38°36′20″N 100°54′59″W﻿ / ﻿38.6056°N 100.9164°W﻿ / 38.6056; -100.9164﻿ (Elkader (Oct. 2, EF2)) | 00:09–00:33 | 18.31 mi (29.47 km) | 450 yd (410 m) | EF2-level damage was inflicted to outbuildings, power poles, and farm equipment. |
| EF0 | SE of Whitelaw | Greeley | KS | 38°22′50″N 101°36′47″W﻿ / ﻿38.3805°N 101.6131°W﻿ / 38.3805; -101.6131﻿ (Whitelaw (Oct. 2, EF0)) | 00:15–00:16 | 0.73 mi (1.17 km) | 100 yd (91 m) | A storm chaser observed a tornado. |
| EF1 | SSW of Gove City | Gove | KS | 38°48′48″N 100°32′25″W﻿ / ﻿38.8132°N 100.5402°W﻿ / 38.8132; -100.5402﻿ (Gove City (Oct. 2, EF1)) | 00:43–00:44 | 0.41 mi (0.66 km) | 75 yd (69 m) | Several large trees were snapped, a few farm structures sustained significant roof damage, and sheet metal was blown from fencing. |
| EF0 | ESE of Gove City | Gove | KS | 38°55′47″N 100°23′48″W﻿ / ﻿38.9296°N 100.3967°W﻿ / 38.9296; -100.3967﻿ (Gove City (Oct. 2, EF0)) | 00:58–00:59 | 0.14 mi (0.23 km) | 50 yd (46 m) | A structure collapsed, a trailer blown over, several tree limbs were snapped, and a single-pole residential cell tower was toppled. |
| EF1 | Quinter | Gove | KS | 39°04′01″N 100°14′11″W﻿ / ﻿39.067°N 100.2363°W﻿ / 39.067; -100.2363﻿ (Quinter (Oct. 2, EF1)) | 01:24–01:26 | 0.54 mi (0.87 km) | 100 yd (91 m) | The tornado began at an elementary school, with damage to the playground equipment and its fence blown over. City buildings, a few businesses, and a few single-wide mobile homes were damaged, with one mobile home blown off its supports. Porches were blown over, and numerous trees were snapped or sustained significant branch damage. |
| EF0 | NW of St. Edward | Boone | NE | 41°36′09″N 97°55′13″W﻿ / ﻿41.6024°N 97.9204°W﻿ / 41.6024; -97.9204﻿ (St. Edward (Oct. 2, EF0)) | 04:42–04:43 | 0.28 mi (0.45 km) | 20 yd (18 m) | Grain bins, trees, crops, and a small farm outbuilding were damaged. |

### October 6 event

List of confirmed tornadoes – Friday, October 6, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | SSE of Peoria | Arapahoe | CO | 39°39′N 104°07′W﻿ / ﻿39.65°N 104.11°W﻿ / 39.65; -104.11﻿ (Peoria (Oct. 6, EF1)) | 22:25 | 0.01 mi (0.016 km) | 25 yd (23 m) | A storm chaser observed a brief landspout tornado in a field. |
| EF0 | NNW of Chase | Rice | KS | 38°22′41″N 98°22′22″W﻿ / ﻿38.378°N 98.3727°W﻿ / 38.378; -98.3727﻿ (Chase (Oct. 6, EF0)) | 23:56–23:57 | 0.73 mi (1.17 km) | 50 yd (46 m) | A sheet metal roof from a chicken farm was damaged. |
| EF0 | N of Marquette | Saline | KS | 38°40′N 97°50′W﻿ / ﻿38.67°N 97.83°W﻿ / 38.67; -97.83﻿ (Marquette (Oct. 6, EF0)) | 00:50–00:54 | 2.36 mi (3.80 km) | 50 yd (46 m) | Chasers reports and video confirmed a tornado. |
| EF1 | NNE of Olsburg | Pottawatomie | KS | 39°27′01″N 96°36′30″W﻿ / ﻿39.4504°N 96.6082°W﻿ / 39.4504; -96.6082﻿ (Olsburg (Oct. 6, EF1)) | 03:06–03:09 | 1.1 mi (1.8 km) | 40 yd (37 m) | A three-sided building was blown over, a tin roof was ripped off a barn, and trees and outbuildings sustained minor damage. |

### October 7 event

Alabama and Mississippi events were associated with Hurricane Nate.
List of confirmed tornadoes – Saturday, October 7, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SSW of Gulf Shores | Baldwin | AL | 30°14′46″N 87°41′33″W﻿ / ﻿30.246°N 87.6926°W﻿ / 30.246; -87.6926﻿ (Gulf Shores (Oct. 7, EF0)) | 18:58–28:59 | 0.07 mi (0.11 km) | 25 yd (23 m) | Several beach-goers videoed a waterspout moving ashore. |
| EF0 | Western Mobile | Mobile | AL | 30°41′05″N 88°12′45″W﻿ / ﻿30.6848°N 88.2125°W﻿ / 30.6848; -88.2125﻿ (Mobile (Oct. 7, EF0)) | 21:47–21:48 | 0.27 mi (0.43 km) | 25 yd (23 m) | Several large oak tree limbs were downed, a large billboard was downed and twisted, and a small professional building experienced shingle, facade, and window damage. Windows were also blown out at a car dealership. |
| EF0 | Eastern Madison | Dane | WI | 43°05′26″N 89°21′23″W﻿ / ﻿43.0905°N 89.3565°W﻿ / 43.0905; -89.3565﻿ (Madison (Oct. 7, EF0)) | 21:59–22:15 | 9.7 mi (15.6 km) | 100 yd (91 m) | Over 200 trees were damaged or destroyed, many of which landed on homes, garages, and vehicles. The rear wall of a car wash and the three-season porch of a house both collapsed. Four commercial buildings and twelve to eighteen homes sustained damage. Several traffic standards, street signs, and construction barrels were downed or damaged as well. A truck topper was ripped from a truck and a small wood shed was damaged. |
| EF0 | NE of Greenville | Butler | AL | 31°56′46″N 86°30′26″W﻿ / ﻿31.9460°N 86.5072°W﻿ / 31.9460; -86.5072﻿ (Greenville (Oct. 7, EF0)) | 23:26–23:27 | 0.55 mi (0.89 km) | 200 yd (180 m) | Sporadic tree damage was observed. A residence sustained damage to its metal roof. |
| EF0 | Orange Beach | Baldwin | AL | 30°17′34″N 87°34′27″W﻿ / ﻿30.2927°N 87.5742°W﻿ / 30.2927; -87.5742﻿ (Orange Beach (Oct. 7, EF0)) | 23:34–23:35 | 0.13 mi (0.21 km) | 25 yd (23 m) | A brief tornado damaged some trees. |
| EF0 | S of Hayneville | Lowndes | AL | 32°08′38″N 86°35′31″W﻿ / ﻿32.1438°N 86.5919°W﻿ / 32.1438; -86.5919﻿ (Hayneville (Oct. 7, EF0)) | 23:55–00:00 | 2.9 mi (4.7 km) | 400 yd (370 m) | Trees were snapped and uprooted. |
| EF1 | S of Autaugaville | Autauga | AL | 32°24′05″N 86°39′11″W﻿ / ﻿32.4015°N 86.6530°W﻿ / 32.4015; -86.6530﻿ (Autaugaville (Oct. 7, EF1)) | 00:31–00:38 | 3.93 mi (6.32 km) | 625 yd (572 m) | Numerous trees were snapped and uprooted. |
| EF0 | Sunman | Ripley, Dearborn | IN | 39°13′34″N 85°06′29″W﻿ / ﻿39.2261°N 85.108°W﻿ / 39.2261; -85.108﻿ (Sunman (Oct. 7, EF0)) | 01:05–01:09 | 5.72 mi (9.21 km) | 100 yd (91 m) | An anchored mobile home was pushed a few feet off its foundation, two large sheet metal doors were blown off a barn, and a small portion of siding was ripped from a property. A tractor trailer was partially tipped off, a barn sustained extensive damage, and numerous trees were snapped or uprooted, including some that fell on homes. |
| EF0 | NNE of Pletcher | Chilton | AL | 32°44′18″N 86°46′04″W﻿ / ﻿32.7383°N 86.7677°W﻿ / 32.7383; -86.7677﻿ (Pletcher (Oct. 7, EF0)) | 01:20–01:27 | 3.01 mi (4.84 km) | 50 yd (46 m) | Damage was sporadic, consisting mainly of broken twigs and branches. |
| EF1 | ENE of Campbell | Chilton | AL | 32°53′42″N 86°49′37″W﻿ / ﻿32.8951°N 86.8269°W﻿ / 32.8951; -86.8269﻿ (Campbell (Oct. 7, EF1)) | 01:47–02:00 | 5.94 mi (9.56 km) | 150 yd (140 m) | Numerous trees were snapped or uprooted, including one that fell on a residence. |
| EF0 | SE of Waynesboro | Wayne | MS | 31°39′07″N 88°36′28″W﻿ / ﻿31.6519°N 88.6079°W﻿ / 31.6519; -88.6079﻿ (Waynesboro (Oct. 7, EF0)) | 02:28–02:29 | 0.6 mi (0.97 km) | 200 yd (180 m) | Three homes sustained roof damage, and a few trees were uprooted. |

### October 8 event

Events were associated with Hurricane Nate.
List of confirmed tornadoes – Sunday, October 8, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | NE of Greenwood | Laurens | SC | 34°17′28″N 82°02′38″W﻿ / ﻿34.291°N 82.044°W﻿ / 34.291; -82.044﻿ (Greenwood (Oct. 8, EF1)) | 20:08–20:30 | 12 mi (19 km) | 100 yd (91 m) | Mostly minor damage was inflicted to homes; numerous trees were downed. A few outbuildings were damaged or destroyed. |
| EF1 | NW of Gaffney | Cherokee | SC | 35°09′36″N 81°42′40″W﻿ / ﻿35.16°N 81.711°W﻿ / 35.16; -81.711﻿ (Gaffney (Oct. 8, EF1)) | 20:16–20:17 | 0.07 mi (0.11 km) | 100 yd (91 m) | Two homes sustained minor exterior and roof damage; some plywood was torn off the exterior of an attic of one home, and subsequent rainfall caused water damage. Flying debris broke out windows. Multiple trees were downed. |
| EF1 | NW of Chappells | Newberry | SC | 34°12′32″N 81°55′01″W﻿ / ﻿34.209°N 81.917°W﻿ / 34.209; -81.917﻿ (Chappells (Oct. 8, EF1)) | 20:20–20:27 | 2.6 mi (4.2 km) | 50 yd (46 m) | Numerous large trees were snapped at their trunks and a wood-framed work shed was tossed. The roof of a home was damaged, and a workshop building sustained major damage and had two garage doors blown inward, with metal roofing scattered. A portion of the home's front porch was lifted and tossed, and a large work trailer was overturned. |
| EF2 | W of Pickens | Pickens | SC | 34°45′50″N 82°45′36″W﻿ / ﻿34.764°N 82.76°W﻿ / 34.764; -82.76﻿ (Pickens (Oct. 8, EF2)) | 20:36–20:48 | 8.42 mi (13.55 km) | 300 yd (270 m) | An intermittent but high-end EF2 tornado touched down three separate times, inflicting damage to 20 homes, of which 5 were severely damaged. One brick home sustained total destruction of its roof and front exterior wall. Several outbuildings and sheds were damaged or destroyed, and numerous trees were snapped or uprooted. Two mobile homes were completely destroyed, and a communications tower was damaged as well. |
| EF2 | W of Cross Hill to Glenn Springs | Laurens, Spartanburg | SC | 34°30′36″N 81°58′01″W﻿ / ﻿34.51°N 81.967°W﻿ / 34.51; -81.967﻿ (Cross Hill (Oct. 8, EF2)) | 20:40–21:21 | 22.28 mi (35.86 km) | 200 yd (180 m) | This strong tornado snapped and uprooted many trees along its path, and damaged or destroyed numerous outbuildings. Homes and manufactured homes were damaged, and a trailer park was severely impacted near Laurens. Several trailers were destroyed at that location, and one person was injured. One frame home was largely destroyed, sustaining loss of its roof and multiple cinder block exterior walls. Considerable building and tree damage occurred in Glenn Springs before the tornado dissipated. |
| EF0 | ESE of Polkville | Cleveland, Burke | NC | 35°24′00″N 81°37′05″W﻿ / ﻿35.4°N 81.618°W﻿ / 35.4; -81.618﻿ (Polkville (Oct. 8, EF0)) | 20:54–21:20 | 13.46 mi (21.66 km) | 100 yd (91 m) | Numerous small to medium-sized trees were snapped or uprooted. Shingles were removed from homes while metal sheet roofing was ripped off a couple of buildings and chicken houses. A metal carport was ripped from a home and tossed. |
| EF0 | WSW of Buffalo | Union | SC | 34°43′19″N 81°44′42″W﻿ / ﻿34.722°N 81.745°W﻿ / 34.722; -81.745﻿ (Buffalo (Oct. 8, EF0)) | 21:34–21:36 | 0.21 mi (0.34 km) | 200 yd (180 m) | Numerous trees were snapped or uprooted, a home lost some of its roof panels, and an outbuilding was damaged. |
| EF1 | NNE of Pleasant Grove | Burke | NC | 35°40′59″N 81°31′55″W﻿ / ﻿35.683°N 81.532°W﻿ / 35.683; -81.532﻿ (Pleasant Grove (Oct. 8, EF1)) | 21:34–21:44 | 2.19 mi (3.52 km) | 250 yd (230 m) | Numerous trees were snapped or uprooted, a manufactured home had part of its roof ripped off while a couple of attached structures were heavily damaged or destroyed. An old home had most of its shingles and part of its roof removed and windows blown out, an old outbuilding was destroyed, and another manufactured home was slid off its concrete foundation. |
| EF1 | Tryon | Greenville, Polk | SC, NC | 35°10′26″N 82°14′31″W﻿ / ﻿35.174°N 82.242°W﻿ / 35.174; -82.242﻿ (Tryon (Oct. 8, EF1)) | 21:37–21:42 | 2.01 mi (3.23 km) | 200 yd (180 m) | Hundreds of trees were snapped or uprooted, with several landing on homes and vehicles. Homes in Tryon sustained damage to their roofs and siding, and a company reported damage to six of its generators, including one 2,400 lb (1,100 kg) unit that was moved. |
| EF0 | S of Hudson | Caldwell | NC | 35°47′38″N 81°29′56″W﻿ / ﻿35.794°N 81.499°W﻿ / 35.794; -81.499﻿ (Hudson (Oct. 8, EF0)) | 21:51–21:55 | 2.42 mi (3.89 km) | 100 yd (91 m) | Trees were downed and minor structural damage was observed. |
| EF1 | NNW of Hudson | Caldwell | NC | 35°51′29″N 81°29′10″W﻿ / ﻿35.858°N 81.486°W﻿ / 35.858; -81.486﻿ (Hudson (Oct. 8, EF1)) | 22:01–22:11 | 6.71 mi (10.80 km) | 400 yd (370 m) | A large truck was overturned and numerous trees were snapped or uprooted, one of which caused significant damage to a home. Two small houses had a majority of their roofs ripped off. Two churches had their steeples toppled and sustained additional roof damage, while power lines were downed. |
| EF1 | NW of Wilkesboro | Wilkes, Ashe | NC | 36°12′00″N 81°26′12″W﻿ / ﻿36.1999°N 81.4368°W﻿ / 36.1999; -81.4368﻿ (Wilkesboro (Oct. 8, EF1)) | 22:45–23:00 | 7.08 mi (11.39 km) | 300 yd (270 m) | A majority of damage consisted of snapped trees; however, half a dozen structures suffered minor damage. This is the first documented tornado on record in Ashe County. |

### October 12 event

List of confirmed tornadoes – Thursday, October 12, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Mount Vista | Clark | WA | 45°43′33″N 122°38′21″W﻿ / ﻿45.7259°N 122.6393°W﻿ / 45.7259; -122.6393﻿ (Chappells (Oct. 12, EF0)) | 22:05–22:08 | 0.16 mi (0.26 km) | 25 yd (23 m) | Limbs were broken off trees, a fence was toppled, and patio furniture was damaged. |
| EF0 | N or Aurora | Marion | OR | 45°15′20″N 122°46′40″W﻿ / ﻿45.2555°N 122.7778°W﻿ / 45.2555; -122.7778﻿ (Aurora (Oct. 12, EF0)) | 22:39–22:40 | 0.62 mi (1.00 km) | 50 yd (46 m) | Damage was inflicted to greenhouses near the Aurora State Airport, where two planes were flipped. |

### October 14 event

List of confirmed tornadoes – Saturday, October 14, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | E of Gorin | Scotland | MO | 40°21′31″N 91°59′00″W﻿ / ﻿40.3586°N 91.9832°W﻿ / 40.3586; -91.9832﻿ (Gorin (Oct. 14, EF1)) | 22:09–22:10 | 0.1 mi (0.16 km) | 10 yd (9.1 m) | One farm outbuilding was completely destroyed and two others were damaged. |
| EF0 | W of Bowen | Hancock | IL | 40°13′57″N 91°04′56″W﻿ / ﻿40.2324°N 91.0823°W﻿ / 40.2324; -91.0823﻿ (Bowen (Oct. 14, EF0)) | 23:25–23:26 | 0.82 mi (1.32 km) | 25 yd (23 m) | Damage was confined to trees. |

### October 20 event

List of confirmed tornadoes – Friday, October 20, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | N of Dickinson | Galveston | TX | 29°28′33″N 95°04′26″W﻿ / ﻿29.4757°N 95.0738°W﻿ / 29.4757; -95.0738﻿ (Dickinson (Oct. 20, EF0)) | 09:58–10:02 | 0.5 mi (0.80 km) | 300 yd (270 m) | Trees were downed and branches were broken. Minor damage was inflicted to fencing, outbuildings, the windows to homes, and cars. Numerous outdoor household goods were damaged and tossed, and numerous power lines were downed. |

### October 21 event

List of confirmed tornadoes – Saturday, October 21, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EFU | SE of Manitou | Tillman | OK | 34°28′45″N 98°56′34″W﻿ / ﻿34.4793°N 98.9428°W﻿ / 34.4793; -98.9428﻿ (Manitou (Oct. 21, EFU)) | 22:23 | 0.1 mi (0.16 km) | 20 yd (18 m) | Numerous storm chasers observed a brief landspout tornado. |
| EFU | E of Indiahoma | Comanche | OK | 34°37′12″N 98°42′53″W﻿ / ﻿34.62°N 98.7148°W﻿ / 34.62; -98.7148﻿ (Indiahoma (Oct. 21, EFU)) | 23:05 | 0.2 mi (0.32 km) | 30 yd (27 m) | Video footage confirmed a tornado. |
| EF1 | E of Apache | Caddo | OK | 34°53′48″N 98°16′13″W﻿ / ﻿34.8966°N 98.2702°W﻿ / 34.8966; -98.2702﻿ (Apache (Oct. 21, EF1)) | 00:08–00:16 | 4.8 mi (7.7 km) | 200 yd (180 m) | Numerous trees were snapped or damaged. |
| EF1 | NE of Apache | Caddo | OK | 34°55′29″N 98°15′07″W﻿ / ﻿34.9248°N 98.252°W﻿ / 34.9248; -98.252﻿ (Apache (Oct. 21, EF1)) | 00:12–00:13 | 0.5 mi (0.80 km) | 50 yd (46 m) | A home sustained roof damage and trees were snapped. |
| EF1 | NE of Apache | Caddo | OK | 34°56′26″N 98°15′01″W﻿ / ﻿34.9405°N 98.2503°W﻿ / 34.9405; -98.2503﻿ (Apache (Oct. 21, EF1)) | 00:12–00:24 | 6.2 mi (10.0 km) | 400 yd (370 m) | Trees were snapped or uprooted. |
| EF1 | NE of Apache | Caddo | OK | 34°57′27″N 98°15′13″W﻿ / ﻿34.9575°N 98.2535°W﻿ / 34.9575; -98.2535﻿ (Apache (Oct. 21, EF1)) | 00:16–00:21 | 3.1 mi (5.0 km) | 150 yd (140 m) | Barns sustained significant damage and trees were snapped. |
| EF1 | N of Cement | Caddo | OK | 34°58′02″N 98°08′49″W﻿ / ﻿34.9673°N 98.1469°W﻿ / 34.9673; -98.1469﻿ (Cement (Oct. 21, EF1)) | 00:23–00:28 | 3.3 mi (5.3 km) | 100 yd (91 m) | Trees were snapped. |
| EF1 | NW of Goldsby to Southwestern Norman | McClain, Cleveland | OK | 35°11′00″N 97°30′47″W﻿ / ﻿35.1832°N 97.513°W﻿ / 35.1832; -97.513﻿ (Goldsby (Oct. 21, EF1)) | 01:36–01:42 | 3.4 mi (5.5 km) | 50 yd (46 m) | This high-end EF1 tornado snapped trees and power poles, downed fences and signs, and damaged or destroyed multiple large metal sheds and outbuildings. The Riverwind Casino sustained minor roof and facade damage, and a large air conditioning unit was displaced 15 to 20 feet at that location. |
| EF1 | Seminole | Seminole | OK | 35°14′21″N 96°41′36″W﻿ / ﻿35.2392°N 96.6933°W﻿ / 35.2392; -96.6933﻿ (Seminole (Oct. 21, EF1)) | 02:52–02:55 | 2 mi (3.2 km) | 150 yd (140 m) | Significant tree damage was observed. Homes, businesses, and power lines throughout Seminole were damaged, and at least two homes sustained significant roof damage. Flying debris from a church was speared into the walls of nearby structures, and gravestones were blown over at a cemetery in town. |

### October 22 event

List of confirmed tornadoes – Sunday, October 22, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | Pascagoula | Jackson | MS | 30°19′49″N 88°30′24″W﻿ / ﻿30.3302°N 88.5066°W﻿ / 30.3302; -88.5066﻿ (Pascagoula (Oct. 22, EF1)) | 17:10–17:13 | 1.39 mi (2.24 km) | 100 yd (91 m) | A waterspout moved ashore on the east side of Pascagoula, causing significant damage to the roof and walls of a large metal building. Some damage to trailers occurred as well. One minor injury was treated at the scene. |

### October 23 event

List of confirmed tornadoes – Monday, October 23, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | S of Trinity | Morgan | AL | 34°34′29″N 87°06′21″W﻿ / ﻿34.5746°N 87.1057°W﻿ / 34.5746; -87.1057﻿ (Trinity (Oct. 23, EF1)) | 07:28–07:33 | 2.4 mi (3.9 km) | 75 yd (69 m) | Numerous trees were snapped or uprooted, and several well-built single-family homes were damaged by fallen trees. The tornado displaced one storage shed and damaged a second at an RV/boat storage facility. |
| EF1 | WNW of Woodruff to Western Spartanburg | Spartanburg | SC | 34°46′41″N 82°05′06″W﻿ / ﻿34.778°N 82.085°W﻿ / 34.778; -82.085﻿ (Woodruff (Oct. 23, EF1)) | 18:52–19:10 | 12.68 mi (20.41 km) | 100 yd (91 m) | Numerous trees were snapped, and homes sustained damage mainly to their roofs, gutters, and siding. Some homes in residential areas of western Spartanburg sustained damage from falling trees as well. |
| EF2 | Northwestern Spartanburg | Spartanburg | SC | 34°58′19″N 81°59′20″W﻿ / ﻿34.972°N 81.989°W﻿ / 34.972; -81.989﻿ (Spartanburg (Oct. 23, EF2)) | 19:12–19:18 | 3.02 mi (4.86 km) | 350 yd (320 m) | This strong rain-wrapped tornado touched down in the northwestern part of Spartanburg. A concrete block-construction warehouse building suffered extensive damage, with an exterior wall collapsed and much of its roof ripped off. A forklift was overturned at this location. Multiple semi-trailers were damaged or destroyed, and several cars were flipped in a parking lot of an adjacent building. One person who sought shelter in a glass booth under a metal awning was hospitalized with burst ear drums due to the extreme change in air pressure. A second warehouse building lost much of its roofing, a third warehouse building had one of it walls collapsed, and many trees and power poles were snapped. A gas station was damaged, a metal truss tower was blown over, and a house was shifted off its foundation as well. |
| EF2 | WNW of Gaffney | Cherokee, Cleveland | SC, NC | 35°06′50″N 81°43′37″W﻿ / ﻿35.114°N 81.727°W﻿ / 35.114; -81.727﻿ (Gaffney (Oct. 23, EF2)) | 19:36–19:42 | 4.86 mi (7.82 km) | 150 yd (140 m) | Two homes had a majority of their roofs torn off. A third home was slid off of its foundation and largely destroyed. Power poles were snapped, and outbuildings were destroyed. The tornado produced minor structural damage, downed trees, and toppled power lines along the remainder of its path before it lifted just after crossing the North Carolina state line. |
| EF1 | SSW of Cliffside to ESE of Polkville | Cherokee, Rutherford, Cleveland | NC | 35°08′17″N 81°49′30″W﻿ / ﻿35.138°N 81.825°W﻿ / 35.138; -81.825﻿ (Cliffside (Oct. 23, EF1)) | 19:33–20:02 | 21.83 mi (35.13 km) | 150 yd (140 m) | Near the beginning of the path, windows were broken at a church in Cliffside and trees were downed in town. Elsewhere along the path, many trees were snapped and uprooted, several of which landed on structures. Windows were blown out of a school and a warehouse building was significantly damaged. A camper was overturned, and a man inside was tossed several yards without injury. |
| EF1 | NW of Lawndale | Cleveland, Lincoln, Catawba | NC | 35°25′19″N 81°33′58″W﻿ / ﻿35.422°N 81.566°W﻿ / 35.422; -81.566﻿ (Lawndale (Oct. 23, EF1)) | 20:08–20:26 | 12.34 mi (19.86 km) | 100 yd (91 m) | Numerous trees were snapped or downed, many of which fell on houses. |
| EF2 | Western Hickory to SE of Boomer | Burke, Catawba, Caldwell, Alexander | NC | 35°44′35″N 81°23′24″W﻿ / ﻿35.743°N 81.39°W﻿ / 35.743; -81.39﻿ (Longview (Oct. 23, EF2)) | 20:37–20:51 | 11.35 mi (18.27 km) | 1,300 yd (1,200 m) | This strong rain-wrapped tornado produced its most intense damage the beginning of its path, where a hangar and several planes were destroyed at Hickory Regional Airport. Hundreds of trees were downed as the tornado weakened and continued through residential areas of Hickory, as well as rural areas further to the north. Many of the trees landed on houses, cars, and other structures. |
| EF1 | NW of Taylorsville | Alexander | NC | 35°55′19″N 81°17′13″W﻿ / ﻿35.922°N 81.287°W﻿ / 35.922; -81.287﻿ (Taylorsville (Oct. 23, EF1)) | 20:54–21:02 | 8.17 mi (13.15 km) | 200 yd (180 m) | Numerous trees were snapped or uprooted. |
| EF1 | Wilkesboro | Wilkes | NC | 36°09′00″N 81°08′42″W﻿ / ﻿36.1499°N 81.1449°W﻿ / 36.1499; -81.1449﻿ (Wilkesboro (Oct. 23, EF1)) | 21:11–21:20 | 8.6 mi (13.8 km) | 275 yd (251 m) | Buildings in town had significant portions of their roofs blown off. One large structure sustained partial collapse of a cinder block exterior wall. |
| EF1 | Providence | Grayson | VA | 36°42′02″N 81°01′17″W﻿ / ﻿36.7005°N 81.0214°W﻿ / 36.7005; -81.0214﻿ (Providence (Oct. 23, EF1)) | 21:53–21:54 | 0.57 mi (0.92 km) | 150 yd (140 m) | Numerous trees were snapped or uprooted. Multiple homes sustained various degrees of damage, including a residence and a barn that were demolished by a fallen tree. |
| EF1 | NW of Radford | Pulaski, Montgomery | VA | 37°10′32″N 80°36′35″W﻿ / ﻿37.1756°N 80.6098°W﻿ / 37.1756; -80.6098﻿ (Radford (Oct. 23, EF1)) | 22:33–22:39 | 3.08 mi (4.96 km) | 300 yd (270 m) | Farm trailers were tossed dozens of feet, and dozens of large trees were snapped and uprooted, several of which fell on houses, sheds, and vehicles. An unattached garage and workshop sustained significant damage, with its roof tossed onto the top of a two-story house nearby. The roof of that home was severely damaged, and power poles were snapped. Some other homes and buildings sustained minor roof damage before the tornado lifted. |
| EF1 | ENE of Conway | Horry | SC | 33°51′02″N 78°53′48″W﻿ / ﻿33.8506°N 78.8966°W﻿ / 33.8506; -78.8966﻿ (Conway (Oct. 23, EF1)) | 02:27–02:29 | 0.36 mi (0.58 km) | 75 yd (69 m) | Several dozen trees were snapped. A window was blown out of a garage, with the garage door slightly buckled. |
| EF0 | NW of Supply | Brunswick | NC | 34°03′33″N 78°21′06″W﻿ / ﻿34.0593°N 78.3516°W﻿ / 34.0593; -78.3516﻿ (Supply (Oct. 23, EF0)) | 03:45–03:47 | 0.36 mi (0.58 km) | 50 yd (46 m) | A few trees were snapped and a few larger limbs were downed. |

### October 24 event

List of confirmed tornadoes – Tuesday, October 24, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Rose Garden | King William | VA | 37°37′37″N 76°56′57″W﻿ / ﻿37.627°N 76.9491°W﻿ / 37.627; -76.9491﻿ (Rose Garden (Oct. 24, EF0)) | 07:00–07:02 | 0.38 mi (0.61 km) | 75 yd (69 m) | Numerous trees were snapped or downed, and 14 structures sustained damage. Some cars were also damaged. |
| EF0 | WNW of Weston | Broward | FL | 26°08′N 80°28′W﻿ / ﻿26.14°N 80.46°W﻿ / 26.14; -80.46﻿ (Weston (Oct. 24, EF0)) | 19:15–19:16 | 0.01 mi (0.016 km) | 20 yd (18 m) | Multiple photos and video confirmed a brief tornado. Time is estimated by radar. |

### October 28 event

Events were associated with Tropical Storm Philippe.
List of confirmed tornadoes – Saturday, October 28, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Westchester | Miami-Dade | FL | 25°44′00″N 80°20′38″W﻿ / ﻿25.7333°N 80.3439°W﻿ / 25.7333; -80.3439﻿ (Westchester (Oct. 28, EF0)) | 17:19–17:20 | 0.48 mi (0.77 km) | 50 yd (46 m) | The front window of a shopping center was broken, and part of the Bird Bowl had its roof ripped off, allowing water into the meeting and mechanical rooms. A large dumpster was moved, power lines, trees, and fences were downed, and minor roof and siding damage was inflicted to homes. |
| EF0 | Boynton Beach | Palm Beach | FL | 26°32′37″N 80°06′35″W﻿ / ﻿26.5436°N 80.1096°W﻿ / 26.5436; -80.1096﻿ (Boynton Beach (Oct. 28, EF0)) | 21:42–21:45 | 0.25 mi (0.40 km) | 75 yd (69 m) | Minor roof damage was observed, most severely to a vacant mobile home which had a portion of its roof lifted off and carried several hundred yards. A light pole was broken. |
| EF0 | West Palm Beach | Palm Beach | FL | 26°38′42″N 80°04′18″W﻿ / ﻿26.6451°N 80.0716°W﻿ / 26.6451; -80.0716﻿ (West Palm Beach (Oct. 28, EF0)) | 22:08–22:16 | 2.08 mi (3.35 km) | 125 yd (114 m) | Power lines, cable lines, and fences were downed. Several trees were toppled. |

### October 31 event

List of confirmed tornadoes – Tuesday, October 31, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | Buffalo | Erie | NY | 42°52′36″N 78°53′38″W﻿ / ﻿42.8768°N 78.8939°W﻿ / 42.8768; -78.8939﻿ (Buffalo (Oct. 31, EF0)) | 13:15–13:18 | 0.4 mi (0.64 km) | 10 yd (9.1 m) | A waterspout moved onshore and impacted a Coast Guard Base, smashing the windows of several cars with flying debris. A portion of a fence was blown off and damaged a nearby vehicle. A person outside was blown off his feet but uninjured. |