# Tornado outbreak sequence of May 15–20, 2017

A prolonged period of intense tornado activity affected the Great Plains, Great Lakes, and Ohio Valley during May 15–20, 2017. This outbreak sequence was the most prolific tornado event of 2017 in terms of number of tornadoes. It is also notable for producing the longest-tracked tornado in Wisconsin state history: an intense EF3 tornado that remained on the ground for over 82 miles (132 km) and killed one person while causing major damage near Chetek and Conrath. Overall, the outbreak sequence resulted in two deaths and several injuries.

## Outbreak summary

On May 15, a severe weather outbreak struck areas from Northern Illinois to Texas. One EF0 tornado was reported in Iowa along with minor tree damage associated with the tornado. Numerous reports of strong winds and large hail along with some significant hail and wind was reported on May 15. On May 16, a widespread severe weather event impacted a line from Wisconsin to Texas according to storm reports. Many tornadoes, including some long tracked tornadoes, were reported in Texas, Oklahoma, and Kansas. An EF3 tornado which touched down near Reeve, Wisconsin, caused one fatality and 25 injuries along its 83-mile (134 km) long track, making it the longest tracked on record in Wisconsin and the first killer tornado in the state since 2011. Extensive damage occurred in a mobile home park near Chetek, where the fatality occurred, and EF3 strength damage occurred to a poorly built home near Conrath, which was leveled. A large, high-end EF2 tornado also struck the southern fringes of Elk City, Oklahoma, killing one person and causing major damage. An EF3 tornado also damaged houses in Pawnee Rock, Kansas, and completely destroyed farm homes near Great Bend, injuring one person. Hail up to 4 inches (10 cm) in diameter and straight-line winds up to 85 mph (137 km/h) were also reported on May 16. On May 17, individual storm cells began to pop up along a line from Minnesota to Nebraska. The individual storm cells generated a few tornadoes in Iowa, Nebraska, and Minnesota before converging into a squall line. The squall line continued to produce winds of up to 89 mph (143 km/h) in parts of Wisconsin, Iowa, and Illinois before weakening below severe limits. An EF2 tornado embedded in the squall line ripped the roof off of a house and injured one person near Galva, Illinois.
On May 18, a high risk of severe thunderstorms was issued for south-central Kansas and northwestern Oklahoma. The Storm Prediction Center stated that several intense and long-tracked tornadoes, along with hurricane-force winds and hail up to 4 inches in diameter were likely in the high risk area. Also, a 30% risk of tornadoes including significant tornados was issued in the high risk area. In the early afternoon, a line of intense supercells with baseball size hail fired along the dry line near the Texas and Oklahoma panhandle border. A few of these supercells went on to produce multiple scattered, short-lived tornadoes across three different states. Most were weak, though an EF2 tornado crumpled several metal power line truss towers near Haynesville, Texas. Later in the afternoon when the most intense severe weather was forecast to occur, a stationary front set up in northern Kansas lowering temperatures in most of the moderate and high risk areas. This led to insufficient instability and limited the severe weather in southern central Kansas and West central Oklahoma to smaller hail and winds. However, this also created a large plume of heavy precipitation that caused some flash flooding. In addition, the supercell thunderstorms that formed during this event initiated in the early afternoon, well before the best kinematics for tornado development had arrived. Later in the evening, the tornado threat was limited to central Texas and eastern Oklahoma. A large, slow moving high precipitation supercell with softball sized hail set up near Cross Plains, Texas. This storm was tornado warned for over an hour and produced many funnel clouds along with a couple of weak tornadoes. The main threat with this storm however was the flash flooding as it dumped close to 8 inches (20 cm) of rain in localized areas due to its very heavy rain and slow movement. A squall line progressed through eastern Oklahoma and Kansas overnight, producing many embedded tornadoes, two of which reached EF2 intensity. One of these EF2 tornadoes struck Muskogee, Oklahoma, causing severe damage to trees, apartment buildings, and industrial buildings. A separate EF1 tornado impacted the western part of Muskogee as well, causing damage to homes and businesses, and downing many trees. The squall line continued into Friday morning, eventually making its way to parts of Arkansas and Missouri, producing numerous additional weak tornadoes. Other storms in states further to the west also produced many EF0 and EF1 tornadoes. On May 20, the severe weather threat generally was limited. However, a few weak tornadoes were spawned in Indiana as plentiful helicity and the presence of a warm front aided the development of tornadoes. Overall, this outbreak sequence produced 134 tornadoes.

## Confirmed tornadoes

Confirmed tornadoes by Enhanced Fujita rating :
| EFU | EF0 | EF1 | EF2 | EF3 | EF4 | EF5 | Total |
| 22 | 62 | 41 | 7 | 2 | 0 | 0 | 134 |

### May 15 event

List of reported tornadoes – Monday, May 15, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | W of Calmar | Winneshiek | IA | 43°10′50″N 91°55′20″W﻿ / ﻿43.1806°N 91.9223°W﻿ / 43.1806; -91.9223﻿ (Calmar (May 15, EF0)) | 23:45–23:47 | 0.98 mi (1.58 km) | 50 yd (46 m) | Surveyors found a broken line of tree damage. |

### May 16 event

List of reported tornadoes – Tuesday, May 16, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | NE of Balko | Beaver | OK | 36°41′N 100°43′W﻿ / ﻿36.68°N 100.71°W﻿ / 36.68; -100.71﻿ (Balko (May 16, EF0)) | 19:45–19:46 | 0.09 mi (0.14 km) | 25 yd (23 m) | Brief tornado remained over open country and caused no damage. |
| EF0 | NW of Waka | Hansford | TX | 36°21′N 101°08′W﻿ / ﻿36.35°N 101.14°W﻿ / 36.35; -101.14﻿ (Waka (May 16, EF0)) | 20:04–20:05 | 0.09 mi (0.14 km) | 25 yd (23 m) | Brief tornado remained over open country and caused no damage. |
| EF0 | SSW of McLean | Donley | TX | 35°10′N 100°39′W﻿ / ﻿35.16°N 100.65°W﻿ / 35.16; -100.65﻿ (McLean (May 16, EF0)) | 21:39–21:50 | 1.39 mi (2.24 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EF3 | WNW of Reeve to N of Chetek to WSW of Ogema | Polk, Barron, Rusk, Price | WI | 45°15′10″N 92°09′43″W﻿ / ﻿45.2529°N 92.1619°W﻿ / 45.2529; -92.1619﻿ (Chetek (May 16, EF3)) | 21:42–00:10 | 82.53 mi (132.82 km) | 1,320 yd (1,210 m) | 1 death – See section on this tornado – There were 25 injuries. |
| EF0 | NE of Exeter | Fillmore | NE | 40°39′58″N 97°25′50″W﻿ / ﻿40.6662°N 97.4305°W﻿ / 40.6662; -97.4305﻿ (Exeter (May 16, EF0)) | 21:43–21:52 | 1.83 mi (2.95 km) | 35 yd (32 m) | A trained storm spotter observed a landspout tornado. An auger was turned over and some tin was removed from a roof. |
| EF0 | E of McLean | Wheeler | TX | 35°14′N 100°29′W﻿ / ﻿35.23°N 100.49°W﻿ / 35.23; -100.49﻿ (McLean (May 16, EF0)) | 21:53–21:54 | 0.06 mi (0.097 km) | 25 yd (23 m) | Brief tornado remained over open country and caused no damage. |
| EF1 | NNW of Shamrock | Wheeler | TX | 35°19′N 100°23′W﻿ / ﻿35.31°N 100.38°W﻿ / 35.31; -100.38﻿ (Shamrock (May 16, EF1)) | 22:16–22:17 | 0.09 mi (0.14 km) | 25 yd (23 m) | A power line and trees were damaged. |
| EF2 | SE of Wheeler | Wheeler | TX | 35°22′N 100°17′W﻿ / ﻿35.37°N 100.29°W﻿ / 35.37; -100.29﻿ (Wheeler (May 16, EF2)) | 22:25–22:44 | 9.18 mi (14.77 km) | 1,250 yd (1,140 m) | Large rain-wrapped wedge tornado. A double-wide mobile home was completely destroyed, with its debris scattered hundreds of yards downwind. Several other structures were damaged, a large number of power poles were snapped off at the base, and numerous trees were snapped or uprooted. A cotton stripper was overturned, and a truck was tossed nearly 200 yards (180 meters). Oil equipment and holding tanks were damaged as well. |
| EF0 | ESE of Aberdeen | Collingsworth | TX | 35°01′N 100°03′W﻿ / ﻿35.02°N 100.05°W﻿ / 35.02; -100.05﻿ (Lutie (May 16, EF0)) | 22:45–22:46 | 0.29 mi (0.47 km) | 25 yd (23 m) | Brief tornado remained over open country and caused no damage. |
| EF1 | SE of Minneola | Clark | KS | 37°22′35″N 100°00′04″W﻿ / ﻿37.3764°N 100.0012°W﻿ / 37.3764; -100.0012﻿ (Minneola (May 16, EF1)) | 22:49–22:58 | 4.03 mi (6.49 km) | 50 yd (46 m) | A narrow tornado rolled an RV camper at a storage lot, destroyed an old pole barn, ripped an exterior wall off of a small abandoned house, and tore roof panels off a metal outbuilding. |
| EF0 | E of Lutie | Collingsworth | TX | 35°01′N 100°03′W﻿ / ﻿35.02°N 100.05°W﻿ / 35.02; -100.05﻿ (Lutie (May 16, EF0)) | 22:50–22:51 | 2.26 mi (3.64 km) | 25 yd (23 m) | Brief tornado remained over open country and caused no damage. |
| EFU | S of Erick | Beckham | OK | 35°04′N 99°55′W﻿ / ﻿35.07°N 99.92°W﻿ / 35.07; -99.92﻿ (Erick (May 16, EFU)) | 23:08–23:11 | 1 mi (1.6 km) | 20 yd (18 m) | The Erick Fire Department, and storm chasers, observed a tornado. |
| EF2 | SSE of Reydon to WNW of Cheyenne | Roger Mills | OK | 35°33′50″N 99°55′01″W﻿ / ﻿35.564°N 99.917°W﻿ / 35.564; -99.917﻿ (Reydon (May 16, EF2)) | 23:18–23:30 | 10.25 mi (16.50 km) | 150 yd (140 m) | This tornado snapped numerous power poles, tore the roof off of a small hotel and a barn, and uprooted trees. A 16-foot grain feeder that was full of grain was overturned. |
| EFU | SSE of Erick | Beckham | OK | 35°07′N 99°51′W﻿ / ﻿35.12°N 99.85°W﻿ / 35.12; -99.85﻿ (Erick (May 16, EFU)) | 23:23–23:25 | 1.13 mi (1.82 km) | 50 yd (46 m) | An NWS employee observed a tornado. |
| EF0 | WSW of Brandon | Perkins | NE | 40°46′N 102°01′W﻿ / ﻿40.77°N 102.02°W﻿ / 40.77; -102.02﻿ (Brandon (May 16, EF0)) | 23:36–23:37 | 0.1 mi (0.16 km) | 20 yd (18 m) | A brief tornado was observed but caused no damage. |
| EF1 | NNW of Strong City | Roger Mills | OK | 35°45′N 99°41′W﻿ / ﻿35.75°N 99.69°W﻿ / 35.75; -99.69﻿ (Strong City (May 16, EF1)) | 23:45–23:46 | 0.75 mi (1.21 km) | 50 yd (46 m) | A tree was blown over and a water tank was damaged at a well site. |
| EF2 | WNW of Carter to Southern Elk City to WSW of Canute | Beckham, Washita | OK | 35°14′25″N 99°33′18″W﻿ / ﻿35.2402°N 99.555°W﻿ / 35.2402; -99.555﻿ (Elk City (May 16, EF2)) | 23:46–00:18 | 18 mi (29 km) | 1,000 yd (910 m) | 1 death – This rain-wrapped wedge tornado caused very high-end EF2 damage as it impacted the southern fringes of Elk City. Many homes at the Elk City Golf & County Club had their roofs ripped off and sustained collapse of some exterior walls. One small home collapsed, and several metal industrial buildings were heavily damaged or destroyed. Numerous vehicles were flipped and tossed, and one man was killed as his pickup truck was thrown 150 yards from a roadway and mangled. Elsewhere along the path, an oil derrick was toppled, several other homes sustained heavy damage, outbuildings were damaged or destroyed, and an irrigation pivot was overturned. Many trees and power poles were snapped along the path. 66 homes were destroyed, while 140 others were damaged. Three businesses were destroyed, and five others were damaged as well. 10 people were injured. |
| EF3 | E of Larned to NW of Hoisington | Pawnee, Barton | KS | 38°11′55″N 99°01′07″W﻿ / ﻿38.1987°N 99.0186°W﻿ / 38.1987; -99.0186﻿ (Pawnee Rock (May 16, EF3)) | 00:59–01:41 | 26.64 mi (42.87 km) | 300 yd (270 m) | This strong tornado struck the town of Pawnee Rock, where a school building sustained considerable damage, trees were snapped, and homes had their roofs ripped off. High-end EF3 damage occurred to the west of Great Bend, where trees were denuded and debarked, a block-foundation farmhouse was completely leveled, and another farmhouse was left with only one corner standing. Several other homes were severely damaged along the path, some sustaining roof and exterior wall loss. Outbuildings were damaged or destroyed, and irrigation pivots were damaged as well. One person was injured. |
| EF0 | NNE of Parrish | Oneida | WI | 45°28′14″N 89°21′48″W﻿ / ﻿45.4706°N 89.3634°W﻿ / 45.4706; -89.3634﻿ (Parrish (May 16, EF0)) | 01:12–01:13 | 0.33 mi (0.53 km) | 175 yd (160 m) | Several hundred pine trees were uprooted by this brief tornado. |
| EF0 | NNE of Susank | Barton | KS | 38°39′N 98°46′W﻿ / ﻿38.65°N 98.76°W﻿ / 38.65; -98.76﻿ (Susank (May 16, EF0)) | 01:48–01:50 | 0.34 mi (0.55 km) | 75 yd (69 m) | Brief tornado remained over open country and caused no damage. |

### May 17 event

List of reported tornadoes – Wednesday, May 17, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | NE of Edgar | Clay | NE | 40°27′06″N 97°56′20″W﻿ / ﻿40.4516°N 97.9389°W﻿ / 40.4516; -97.9389﻿ (Edgar (May 17, EF1)) | 06:24–06:29 | 2.19 mi (3.52 km) | 50 yd (46 m) | Two farmsteads received damage to their outbuildings and trees. A few center irrigation pivots were also damaged, and tin was lofted into trees. |
| EF0 | NE of Alton | Sioux | IA | 43°01′N 95°58′W﻿ / ﻿43.02°N 95.97°W﻿ / 43.02; -95.97﻿ (Alton (May 17, EF0)) | 19:10–19:12 | 0.02 mi (0.032 km) | 10 yd (9.1 m) | A trained spotter reported a brief touchdown. No damage occurred. |
| EF0 | W of Matlock | Sioux | IA | 43°14′N 95°57′W﻿ / ﻿43.24°N 95.95°W﻿ / 43.24; -95.95﻿ (Matlock (May 17, EF0)) | 19:42–19:44 | 0.02 mi (0.032 km) | 10 yd (9.1 m) | Tornado reported by a storm chaser. No damage occurred. |
| EF1 | WNW of Wisner | Cuming | NE | 42°00′27″N 97°01′07″W﻿ / ﻿42.0075°N 97.0187°W﻿ / 42.0075; -97.0187﻿ (Wisner (May 17, EF1)) | 20:48–20:50 | 0.37 mi (0.60 km) | 50 yd (46 m) | A brief tornado damaged crops and destroyed outbuildings. One home sustained minor damage and had one exterior wall bowed out. |
| EF0 | Plainview | Wabasha | MN | 44°09′47″N 92°10′44″W﻿ / ﻿44.1631°N 92.1789°W﻿ / 44.1631; -92.1789﻿ (Plainview (May 17, EF0)) | 21:29–21:30 | 0.79 mi (1.27 km) | 30 yd (27 m) | Isolated spots of minor damage occurred in town. The back side of a metal shed was blown down, part of roof was blown off of a storage building, and the batting cage at a baseball field was destroyed. |
| EF1 | W of Pleasant Plain | Jefferson, Washington | IA | 41°08′43″N 91°55′53″W﻿ / ﻿41.1453°N 91.9313°W﻿ / 41.1453; -91.9313﻿ (Pleasant Plain (May 17, EF1)) | 22:16–22:20 | 3.22 mi (5.18 km) | 25 yd (23 m) | A small and fast-moving high-end EF1 tornado damaged outbuildings and trees. One outbuilding was completely destroyed with debris strewn downwind. |
| EF1 | W of North Bend | Trempealeau | WI | 44°05′47″N 91°11′31″W﻿ / ﻿44.0965°N 91.192°W﻿ / 44.0965; -91.192﻿ (North Bend (May 17, EF1)) | 22:21–22:25 | 1.06 mi (1.71 km) | 250 yd (230 m) | A brief tornado snapped trees and damaged farm buildings. |
| EF0 | WSW of Illinois City | Rock Island | IL | 41°20′54″N 91°03′08″W﻿ / ﻿41.3483°N 91.0521°W﻿ / 41.3483; -91.0521﻿ (Illinois City (May 17, EF0)) | 23:04–23:05 | 0.71 mi (1.14 km) | 25 yd (23 m) | A storm chaser videoed a brief tornado in an open field. No damage occurred. |
| EF0 | NE of Ridgeway | Winneshiek | IA | 43°21′04″N 91°54′15″W﻿ / ﻿43.3512°N 91.9043°W﻿ / 43.3512; -91.9043﻿ (Ridgeway (May 17, EF0)) | 23:50–23:51 | 0.2 mi (0.32 km) | 30 yd (27 m) | A brief tornado damaged trees. |
| EF0 | Elgin | Wabasha | MN | 44°07′43″N 92°15′15″W﻿ / ﻿44.1286°N 92.2541°W﻿ / 44.1286; -92.2541﻿ (Plainview (May 17, EF0)) | 00:35–00:36 | 0.26 mi (0.42 km) | 30 yd (27 m) | A brief tornado caused minor roof shingle and tree damage in Elgin. |
| EF1 | NE of Washington | Washington | IA | 41°23′02″N 91°36′08″W﻿ / ﻿41.3838°N 91.6021°W﻿ / 41.3838; -91.6021﻿ (Washington (May 17, EF1)) | 00:36–00:42 | 5.95 mi (9.58 km) | 40 yd (37 m) | A small, fast-moving tornado damaged or destroyed numerous outbuildings. Trees were snapped, power lines were downed, and a house had its windows blown out. |
| EF1 | NW of Donahue | Scott | IA | 41°42′01″N 90°43′22″W﻿ / ﻿41.7003°N 90.7228°W﻿ / 41.7003; -90.7228﻿ (Donahue (May 17, EF1)) | 01:44–01:46 | 2.14 mi (3.44 km) | 25 yd (23 m) | Numerous trees were damaged, including a few rotten trees that were snapped. A home and a garage sustained roof damage. |
| EF1 | SE of Sherrard | Mercer, Henry | IL | 41°14′41″N 90°30′22″W﻿ / ﻿41.2447°N 90.5062°W﻿ / 41.2447; -90.5062﻿ (Sherrard (May 17, EF1)) | 02:00–02:09 | 8.11 mi (13.05 km) | 150 yd (140 m) | Numerous outbuildings, a few homes, and over 50 trees sustained damage. One home had partial roof loss, and debris was speared through the walls of another home. |
| EF1 | WNW of Hooppole | Henry | IL | 41°32′48″N 89°59′58″W﻿ / ﻿41.5468°N 89.9994°W﻿ / 41.5468; -89.9994﻿ (Hoopole (May 17, EF1)) | 02:44–02:47 | 2.06 mi (3.32 km) | 50 yd (46 m) | Damage was primarily confined to snapped branches and uprooted trees, though one outbuilding suffered roof damage. |
| EF2 | SSW of Galva | Henry | IL | 41°09′12″N 90°04′52″W﻿ / ﻿41.1533°N 90.0811°W﻿ / 41.1533; -90.0811﻿ (Galva (May 17, EF2)) | 03:20–03:21 | 1.29 mi (2.08 km) | 50 yd (46 m) | A small multiple-vortex tornado tore the roof off a home and blew out the structures doors, injuring one inside. Multiple trees and another home were also damaged. |
| EF1 | S of Poplar Grove to NW of Harvard | Boone, McHenry | IL | 42°20′03″N 88°49′20″W﻿ / ﻿42.3341°N 88.8221°W﻿ / 42.3341; -88.8221﻿ (Poplar Grove (May 17, EF1)) | 03:21–03:34 | 10.3 mi (16.6 km) | 100 yd (91 m) | A large outbuilding was destroyed and others were damaged. Numerous trees were snapped and uprooted, and a garage collapsed. |

### May 18 event

List of reported tornadoes – Thursday, May 18, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EFU | NW of Duke | Jackson | OK | 34°40′37″N 99°35′38″W﻿ / ﻿34.677°N 99.594°W﻿ / 34.677; -99.594﻿ (Duke (May 18, EFU)) | 19:02–19:05 | 0.7 mi (1.1 km) | 50 yd (46 m) | A brief tornado was reported by local media. No damage occurred. |
| EF0 | N of Duke | Jackson | OK | 34°41′42″N 99°34′30″W﻿ / ﻿34.695°N 99.575°W﻿ / 34.695; -99.575﻿ (Duke (May 18, EF0)) | 19:11–19:16 | 1.2 mi (1.9 km) | 75 yd (69 m) | Large cone tornado remained mainly over open country, though one house sustained light damage. |
| EFU | NE of Delhi | Otero | CO | 37°42′41″N 103°53′19″W﻿ / ﻿37.7113°N 103.8885°W﻿ / 37.7113; -103.8885﻿ (Delhi (May 18, EFU)) | 20:29–20:36 | 2.88 mi (4.63 km) | 75 yd (69 m) | Storm chasers and an off-duty NWS employee observed a tornado which caused no damage. |
| EFU | NNW of Cloud Chief | Washita | OK | 35°17′13″N 98°51′32″W﻿ / ﻿35.287°N 98.859°W﻿ / 35.287; -98.859﻿ (Cloud Chief (May 18, EFU)) | 20:40–20:41 | 0.5 mi (0.80 km) | 100 yd (91 m) | Tornado remained over open country and caused no damage. |
| EF0 | S of Seward | Stafford | KS | 38°09′29″N 98°47′56″W﻿ / ﻿38.158°N 98.799°W﻿ / 38.158; -98.799﻿ (Seward (May 18, EF0)) | 21:03–21:04 | 0.58 mi (0.93 km) | 50 yd (46 m) | Weak, brief tornado remained over open country and caused no damage. |
| EFU | S of Vernon | Wilbarger | TX | 34°03′14″N 99°16′55″W﻿ / ﻿34.054°N 99.282°W﻿ / 34.054; -99.282﻿ (Vernon (May 18, EFU)) | 21:04 | 0.2 mi (0.32 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | WSW of Seiling | Dewey | OK | 36°07′37″N 99°01′19″W﻿ / ﻿36.127°N 99.022°W﻿ / 36.127; -99.022﻿ (Seiling (May 18, EFU)) | 21:11 | 0.2 mi (0.32 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EF0 | NW of Bloom | Ford | KS | 37°30′55″N 99°56′40″W﻿ / ﻿37.5154°N 99.9445°W﻿ / 37.5154; -99.9445﻿ (Bloom (May 18, EF0)) | 21:14–21:18 | 0.49 mi (0.79 km) | 50 yd (46 m) | Landspout tornado remained over open country and caused no damage. |
| EF0 | S of Wilroads | Ford | KS | 37°35′25″N 99°53′02″W﻿ / ﻿37.5904°N 99.8839°W﻿ / 37.5904; -99.8839﻿ (Wilroads (May 18, EF0)) | 21:18–21:21 | 0.35 mi (0.56 km) | 50 yd (46 m) | Landspout tornado developed as the previous one was dissipating. No damage occurred. |
| EFU | SE of Weatherford | Custer | OK | 35°30′34″N 98°40′30″W﻿ / ﻿35.5095°N 98.6749°W﻿ / 35.5095; -98.6749﻿ (Weatherford (May 18, EFU)) | 21:20 | 0.2 mi (0.32 km) | 30 yd (27 m) | Tornado remained over open country and caused no damage. |
| EF0 | NW of Chester | Woodward, Major | OK | 36°13′34″N 98°58′26″W﻿ / ﻿36.226°N 98.974°W﻿ / 36.226; -98.974﻿ (Chester (May 18, EF0)) | 21:23–21:36 | 8.6 mi (13.8 km) | 200 yd (180 m) | Large multiple-vortex tornado caused roof and siding damage to two homes. Tree damage also occurred. |
| EF0 | E of Great Bend Municipal Airport | Barton | KS | 38°21′N 98°49′W﻿ / ﻿38.35°N 98.82°W﻿ / 38.35; -98.82﻿ (Great Bend Airport (May 18, EF0)) | 21:30–21:31 | 0.11 mi (0.18 km) | 50 yd (46 m) | A brief tornado touched down over open fields. No damage occurred. |
| EF0 | SW of Greenfield | Blaine | OK | 35°34′48″N 98°37′34″W﻿ / ﻿35.58°N 98.626°W﻿ / 35.58; -98.626﻿ (Weatherford (May 18, EF0)) | 21:33 | 0.2 mi (0.32 km) | 50 yd (46 m) | An outbuilding and the roof of a house were damaged. |
| EF0 | NNE of Seward | Stafford | KS | 38°14′17″N 98°46′08″W﻿ / ﻿38.238°N 98.769°W﻿ / 38.238; -98.769﻿ (Seward (May 18, EF0)) | 21:33–21:34 | 0.56 mi (0.90 km) | 50 yd (46 m) | Weak, brief tornado remained over open country and caused no damage. |
| EFU | N of Chester | Major | OK | 36°21′53″N 98°55′12″W﻿ / ﻿36.3647°N 98.92°W﻿ / 36.3647; -98.92﻿ (Chester (May 18, EFU)) | 21:37 | 0.2 mi (0.32 km) | 30 yd (27 m) | A brief tornado was reported by local media. No damage occurred. |
| EFU | SW of Corn | Washita | OK | 35°18′32″N 98°50′46″W﻿ / ﻿35.309°N 98.846°W﻿ / 35.309; -98.846﻿ (Duke (May 18, EFU)) | 21:40 | 0.3 mi (0.48 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | NNW of Haynesville | Wichita | TX | 34°07′16″N 98°55′44″W﻿ / ﻿34.121°N 98.929°W﻿ / 34.121; -98.929﻿ (Haynesville (May 18, EFU)) | 21:48–21:50 | 1.2 mi (1.9 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EF1 | WSW of Waynoka | Major, Woods | OK | 36°26′06″N 98°55′41″W﻿ / ﻿36.435°N 98.928°W﻿ / 36.435; -98.928﻿ (Waynoka (May 18, EF1)) | 21:49–22:07 | 9 mi (14 km) | 200 yd (180 m) | Tornado mainly moved over rural areas, though the roof of a barn was damaged at one location. |
| EF2 | NNW of Haynesville | Wichita | TX | 34°07′59″N 98°53′38″W﻿ / ﻿34.133°N 98.894°W﻿ / 34.133; -98.894﻿ (Haynesville (May 18, EF2)) | 21:54–21:58 | 2 mi (3.2 km) | 100 yd (91 m) | Tornado damaged several metal power line truss towers, a few of which completely collapsed. |
| EFU | NW of Alva | Woods | OK | 36°51′00″N 98°41′42″W﻿ / ﻿36.85°N 98.695°W﻿ / 36.85; -98.695﻿ (Alva (May 18, EFU)) | 21:57 | 0.2 mi (0.32 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EF0 | ESE of Greenfield | Canadian, Blaine | OK | 35°41′47″N 98°18′46″W﻿ / ﻿35.6965°N 98.3128°W﻿ / 35.6965; -98.3128﻿ (Greenfield (May 18, EF0)) | 22:05–22:10 | 3.42 mi (5.50 km) | 50 yd (46 m) | Homes sustained roof, siding, and shingle damage. A power pole was broken and an irrigation pivot was overturned. Two barns also sustained damage. |
| EF0 | N of Great Bend Municipal Airport | Barton | KS | 38°23′N 98°51′W﻿ / ﻿38.39°N 98.85°W﻿ / 38.39; -98.85﻿ (Great Bend Airport (May 18, EF0)) | 22:23–22:24 | 0.21 mi (0.34 km) | 50 yd (46 m) | A brief tornado touched down over open fields. No damage occurred. |
| EF0 | NE of Great Bend Municipal Airport | Barton | KS | 38°23′N 98°50′W﻿ / ﻿38.38°N 98.83°W﻿ / 38.38; -98.83﻿ (Great Bend Airport (May 18, EF0)) | 22:49–22:51 | 0.62 mi (1.00 km) | 50 yd (46 m) | A brief tornado touched down over open fields. No damage occurred. |
| EF0 | SE of Alta Vista | Wabaunsee | KS | 38°50′58″N 96°27′13″W﻿ / ﻿38.8495°N 96.4537°W﻿ / 38.8495; -96.4537﻿ (Alta Vista (May 18, EF0)) | 22:52 | 0.01 mi (0.016 km) | 25 yd (23 m) | A brief tornado touched down over an open field. No damage occurred. |
| EF0 | W of Salina Regional Airport | Saline | KS | 38°48′N 97°40′W﻿ / ﻿38.8°N 97.67°W﻿ / 38.8; -97.67﻿ (Salina Airport (May 18, EF0)) | 23:31–23:33 | 0.34 mi (0.55 km) | 50 yd (46 m) | A rain-wrapped tornado remained over open fields. No damage occurred. |
| EF0 | W of Duncan | Stephens | OK | 34°27′43″N 98°02′54″W﻿ / ﻿34.4619°N 98.0483°W﻿ / 34.4619; -98.0483﻿ (Duncan (May 18, EFU)) | 00:00 | 0.2 mi (0.32 km) | 50 yd (46 m) | An outbuilding and some trees were damaged. |
| EF1 | SE of Cross Plains | Brown | TX | 32°02′07″N 99°07′07″W﻿ / ﻿32.0353°N 99.1185°W﻿ / 32.0353; -99.1185﻿ (Cross Cut (May 18, EF1)) | 00:41–00:55 | 3.3 mi (5.3 km) | 450 yd (410 m) | A home had roof decking lifted off, small sheds were destroyed, and metal roof panels were lifted off of barns. Numerous tree limbs and some tree trunks were snapped, and debris was blown over 250 yards (230 m). |
| EF0 | SE of May | Brown | TX | 32°00′40″N 98°57′38″W﻿ / ﻿32.011°N 98.9605°W﻿ / 32.011; -98.9605﻿ (May (May 18, EF0)) | 01:04–01:06 | 0.42 mi (0.68 km) | 50 yd (46 m) | Brief tornado remained over open country and caused no damage. |
| EF1 | SE of May | Brown | TX | 31°56′31″N 98°51′33″W﻿ / ﻿31.942°N 98.8591°W﻿ / 31.942; -98.8591﻿ (May (May 18, EF1)) | 01:38–02:00 | 4.36 mi (7.02 km) | 880 yd (800 m) | A mobile home's roof was torn off, a chicken coop was destroyed, and sheet metal was ripped off of a barn and tossed over 100 yards (91 m). Trees were uprooted, snapped, or had branches snapped, and outdoor lawn furniture was damaged. |
| EF0 | Stonewall | Pontotoc | OK | 34°39′00″N 96°31′50″W﻿ / ﻿34.65°N 96.5306°W﻿ / 34.65; -96.5306﻿ (Stonewall (May 18, EF0)) | 02:13–02:14 | 0.6 mi (0.97 km) | 75 yd (69 m) | Roof and tree damage occurred in town. |
| EF1 | ENE of Rocky to SSW of Cloud Chief | Washita | OK | 35°11′42″N 98°58′16″W﻿ / ﻿35.195°N 98.971°W﻿ / 35.195; -98.971﻿ (Rocky (May 18, EF1)) | 02:29–02:37 | 6.05 mi (9.74 km) | 100 yd (91 m) | A barn was destroyed and numerous trees and power lines were downed. |
| EF1 | NE of Ashland | Pittsburg | OK | 34°48′18″N 96°04′07″W﻿ / ﻿34.8051°N 96.0686°W﻿ / 34.8051; -96.0686﻿ (Ashland (May 18, EF1)) | 02:46–02:54 | 8.2 mi (13.2 km) | 1,000 yd (910 m) | Power poles and numerous trees were snapped by this large wedge tornado. An outbuilding and a home were damaged as well. |
| EF1 | NW of Savanna | Pittsburg | OK | 34°50′25″N 95°54′54″W﻿ / ﻿34.8403°N 95.9151°W﻿ / 34.8403; -95.9151﻿ (Savanna (May 18, EF1)) | 02:56–03:02 | 4.6 mi (7.4 km) | 1,000 yd (910 m) | Numerous trees were snapped or uprooted by this large wedge tornado. |
| EF2 | NW of Hanna to SSW of Stidham | McIntosh | OK | 35°14′46″N 95°57′00″W﻿ / ﻿35.2461°N 95.95°W﻿ / 35.2461; -95.95﻿ (Hanna (May 18, EF2)) | 02:57–03:09 | 13.7 mi (22.0 km) | 850 yd (780 m) | A large outbuilding was destroyed, numerous trees were snapped or uprooted, a home was damaged, and a metal high-voltage truss tower was toppled. |
| EF1 | SW of Stidham to Lake Eufaula | McIntosh | OK | 35°21′28″N 95°43′21″W﻿ / ﻿35.3578°N 95.7225°W﻿ / 35.3578; -95.7225﻿ (Hanna (May 18, EF1)) | 03:11–03:15 | 4.7 mi (7.6 km) | 500 yd (460 m) | A mobile home and outbuildings were destroyed, several homes had their roofs damaged, power poles were toppled, and numerous trees were snapped or uprooted. |
| EF1 | ENE of Stidham | McIntosh | OK | 35°22′34″N 95°39′33″W﻿ / ﻿35.3761°N 95.6591°W﻿ / 35.3761; -95.6591﻿ (Hanna (May 18, EF1)) | 03:15–03:19 | 3.8 mi (6.1 km) | 450 yd (410 m) | An outbuilding was destroyed, a home was damaged, numerous trees were snapped or uprooted, and power poles were blown down. |
| EF1 | E of Checotah | McIntosh | OK | 35°27′59″N 95°29′28″W﻿ / ﻿35.4664°N 95.4911°W﻿ / 35.4664; -95.4911﻿ (Checotah (May 18, EF1)) | 03:25–03:32 | 8.8 mi (14.2 km) | 600 yd (550 m) | Privacy fences were downed, homes were damaged, and trees were snapped or outbuildings. Outbuildings were damaged or destroyed and power poles were toppled. |
| EF1 | S of Redbird | Wagoner | OK | 35°47′18″N 95°37′10″W﻿ / ﻿35.7882°N 95.6194°W﻿ / 35.7882; -95.6194﻿ (Redbird (May 18, EF1)) | 03:30–03:36 | 5 mi (8.0 km) | 500 yd (460 m) | A center pivot irrigation system was destroyed and several power poles and trees were snapped. |
| EF1 | SW of Braggs | Muskogee | OK | 35°33′51″N 95°19′53″W﻿ / ﻿35.5643°N 95.3315°W﻿ / 35.5643; -95.3315﻿ (Braggs (May 18, EF1)) | 03:35–03:40 | 5.3 mi (8.5 km) | 900 yd (820 m) | Numerous trees were snapped or uprooted, outbuildings were damaged, and power poles were toppled. |
| EF1 | Western Muskogee | Muskogee | OK | 35°43′48″N 95°25′02″W﻿ / ﻿35.7300°N 95.4173°W﻿ / 35.7300; -95.4173﻿ (Muskogee (May 18, EF1)) | 03:37–03:39 | 2 mi (3.2 km) | 400 yd (370 m) | This tornado began at the Eagle Crest Golf Club and moved into the western part of Muskogee. Several homes in town were damaged and numerous trees were snapped or uprooted. Windows were broken at a hotel, and a business had part of its roof peeled back. |
| EF1 | SSW of Porter to Western Wagoner | Wagoner | OK | 35°51′17″N 95°31′39″W﻿ / ﻿35.8548°N 95.5275°W﻿ / 35.8548; -95.5275﻿ (Porter (May 18, EF1)) | 03:39–03:52 | 10.3 mi (16.6 km) | 700 yd (640 m) | Homes were damaged, mobile homes and RV campers were rolled, outbuildings were destroyed, power poles were blown down, and trees were snapped or uprooted. Minor tree limb damage occurred in the western part of Wagoner before the tornado dissipated. |
| EF2 | Northern Muskogee | Muskogee | OK | 35°45′30″N 95°23′05″W﻿ / ﻿35.7583°N 95.3846°W﻿ / 35.7583; -95.3846﻿ (Muskogee (May 18, EF2)) | 03:40–03:43 | 2.8 mi (4.5 km) | 400 yd (370 m) | This strong tornado moved through the northern part of Muskogee, causing extensive damage. Many trees were snapped and uprooted, a metal-frame industrial building was completely destroyed, large apartment buildings had their roofs torn off, and homes sustained lesser damage. A strip mall sustained damage and had windows blown out, power poles were snapped, and outbuilding structures were destroyed as well. |
| EF1 | SW of Braggs | Muskogee | OK | 35°37′06″N 95°14′50″W﻿ / ﻿35.6183°N 95.2472°W﻿ / 35.6183; -95.2472﻿ (Braggs (May 18, EF1)) | 03:41–03:45 | 3.7 mi (6.0 km) | 350 yd (320 m) | Trees were uprooted and numerous large limbs were snapped, outbuildings were damaged, and power poles were downed. |
| EF1 | W of Fort Gibson to NNW of Hulbert | Muskogee, Wagoner, Cherokee | OK | 35°48′26″N 95°20′21″W﻿ / ﻿35.8073°N 95.3392°W﻿ / 35.8073; -95.3392﻿ (Fort Gibson (May 18, EF1)) | 03:45–03:59 | 16.6 mi (26.7 km) | 650 yd (590 m) | A tornado snapped or uprooted numerous trees along its path. |
| EF1 | SE of Wagoner to SE of Chouteau | Wagoner, Mayes | OK | 35°54′54″N 95°19′48″W﻿ / ﻿35.9150°N 95.3299°W﻿ / 35.9150; -95.3299﻿ (Wagoner (May 18, EF1)) | 03:48–04:05 | 12.7 mi (20.4 km) | 650 yd (590 m) | Homes were damaged, several boats docks were destroyed on the shore of Fort Gibson Lake, and outbuildings were destroyed. Numerous trees were snapped or uprooted along the path. |
| EF1 | SW of Peggs | Cherokee, Mayes | OK | 36°01′01″N 95°10′22″W﻿ / ﻿36.0169°N 95.1727°W﻿ / 36.0169; -95.1727﻿ (Peggs (May 18, EF1)) | 04:01–04:07 | 5.8 mi (9.3 km) | 800 yd (730 m) | A tornado snapped or uprooted numerous trees. |

### May 19 event

List of reported tornadoes – Friday, May 19, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF0 | SW of Bentonville | Benton | AR | 36°19′15″N 94°15′10″W﻿ / ﻿36.3207°N 94.2529°W﻿ / 36.3207; -94.2529﻿ (Peggs (May 18, EF0)) | 05:07–05:09 | 2 mi (3.2 km) | 225 yd (206 m) | A number of homes sustained roof damage, numerous large tree limbs were snapped, and several power poles were downed. |
| EF1 | E of Jane | McDonald | MO | 36°30′13″N 94°12′28″W﻿ / ﻿36.5036°N 94.2079°W﻿ / 36.5036; -94.2079﻿ (Jane (May 19, EF1)) | 05:23–05:25 | 1 mi (1.6 km) | 100 yd (91 m) | A brief tornado snapped or uprooted numerous trees. Multiple homes suffered roof damage and/or had windows blown out. One home lost half of its roof. |
| EF0 | SE of Shell Knob | Barry | MO | 36°35′50″N 93°35′55″W﻿ / ﻿36.5972°N 93.5985°W﻿ / 36.5972; -93.5985﻿ (Shell Knob (May 19, EF0)) | 06:04–06:05 | 0.12 mi (0.19 km) | 100 yd (91 m) | A brief tornado damaged multiple docks and uprooted trees. |
| EF0 | Western Branson | Taney | MO | 36°38′34″N 93°15′54″W﻿ / ﻿36.6429°N 93.265°W﻿ / 36.6429; -93.265﻿ (Branson (May 19, EF0)) | 06:28–06:29 | 0.25 mi (0.40 km) | 75 yd (69 m) | A brief tornado damaged a hotel and an outlet mall, injuring one person. |
| EF1 | Rockaway Beach to N of Taneyville | Taney | MO | 36°41′58″N 93°09′34″W﻿ / ﻿36.6995°N 93.1595°W﻿ / 36.6995; -93.1595﻿ (Rockaway Beach (May 19, EF1)) | 06:30–06:40 | 8.7 mi (14.0 km) | 200 yd (180 m) | Numerous trees were uprooted along the path. |
| EF0 | Turners | Greene | MO | 37°10′21″N 93°09′53″W﻿ / ﻿37.1726°N 93.1647°W﻿ / 37.1726; -93.1647﻿ (Turners (May 19, EF0)) | 06:54–06:56 | 2.49 mi (4.01 km) | 200 yd (180 m) | Numerous trees were uprooted in Turners, some of which fell on homes. |
| EF0 | Chadwick | Christian | MO | 36°54′54″N 93°03′55″W﻿ / ﻿36.9149°N 93.0654°W﻿ / 36.9149; -93.0654﻿ (Chadwick (May 19, EF0)) | 07:00–07:03 | 3 mi (4.8 km) | 500 yd (460 m) | Numerous trees were uprooted in Chadwick, some of which fell on homes. |
| EF1 | Forkners Hill | Webster | MO | 37°28′06″N 92°55′01″W﻿ / ﻿37.4683°N 92.9169°W﻿ / 37.4683; -92.9169﻿ (Conway (May 19, EF1)) | 07:15–07:17 | 2 mi (3.2 km) | 300 yd (270 m) | Several structures and homes sustained minor or moderate damage, an outbuilding was destroyed, and numerous trees were snapped or uprooted. |
| EF0 | N of Dawson | Wright | MO | 37°16′N 92°19′W﻿ / ﻿37.27°N 92.31°W﻿ / 37.27; -92.31﻿ (Dawson (May 19, EF0)) | 08:00–08:01 | 0.25 mi (0.40 km) | 50 yd (46 m) | Roof damage occurred to one residence and large tree limbs were broken. |
| EF0 | Northeastern Thayer | Oregon | MO | 36°31′51″N 91°32′38″W﻿ / ﻿36.5307°N 91.544°W﻿ / 36.5307; -91.544﻿ (Thayer (May 19, EF0)) | 08:12–08:13 | 0.75 mi (1.21 km) | 300 yd (270 m) | Numerous trees were damaged and uprooted. Some homes were damaged. |
| EF1 | E of Williamsburg | Callaway | MO | 38°55′00″N 91°40′58″W﻿ / ﻿38.9166°N 91.6829°W﻿ / 38.9166; -91.6829﻿ (Williamsburg (May 19, EF1)) | 09:15–09:16 | 1.58 mi (2.54 km) | 50 yd (46 m) | A barn was destroyed while two others were damaged. Two vehicles were flipped, a power pole was snapped, and some debris was tossed nearly a mile downwind. |
| EF0 | E of New Florence | Montgomery | MO | 38°53′43″N 91°26′42″W﻿ / ﻿38.8952°N 91.4450°W﻿ / 38.8952; -91.4450﻿ (New Florence (May 19, EF0)) | 09:23–09:28 | 3.98 mi (6.41 km) | 75 yd (69 m) | Two buildings at a Missouri Department of Transportation location were damaged, while 12 garage doors were also removed. The material was tossed into power lines, causing one power pole to snap. A home had its garage door damaged and porch pillars shifted off the foundation. Three barns sustained roof and door damage. |
| EF1 | NE of Hart | McDonald, Newton | MO | 36°46′N 94°34′W﻿ / ﻿36.76°N 94.56°W﻿ / 36.76; -94.56﻿ (Seneca (May 19, EF1)) | 19:55–19:57 | 2.03 mi (3.27 km) | 10 yd (9.1 m) | A home and several outbuildings sustained roof damage and trees were uprooted. |
| EF1 | Northern Neosho | Newton | MO | 36°52′24″N 94°22′34″W﻿ / ﻿36.8732°N 94.376°W﻿ / 36.8732; -94.376﻿ (Neosho (May 19, EF1)) | 20:10–20:14 | 4.1 mi (6.6 km) | 300 yd (270 m) | Tornado touched down in the northern part of Neosho and moved northeast. Numerous trees were damaged, some of which were snapped or uprooted. A few homes were damaged as well. |
| EF1 | SW of Sulphur | Crawford | IN | 38°13′01″N 86°29′35″W﻿ / ﻿38.217°N 86.493°W﻿ / 38.217; -86.493﻿ (Sulphur (May 19, EF1)) | 20:22–20:24 | 0.23 mi (0.37 km) | 50 yd (46 m) | An old RV had its roof removed, with debris thrown up to 100 yards (91 m), another RV was tipped over, and the bed of a pickup truck, which was not attached, was thrown about 150 yards (140 m). A barn had one of its doors blown out and suffered significant roof damage, with debris thrown 125 yards (114 m) into the auto body shop parking lot, and a single-wide trailer sustained roof damage. An auto body shop sustained roof damage, vehicles in the parking lot had several windows smashed by debris, and trees were knocked down or snapped. |
| EFU | NW of Winters | Runnels | TX | 31°58′N 99°59′W﻿ / ﻿31.97°N 99.99°W﻿ / 31.97; -99.99﻿ (Winters (May 19, EFU)) | 20:23–20:25 | 0.03 mi (0.048 km) | 30 yd (27 m) | Thin rope tornado remained over open country and caused no damage. |
| EF0 | WSW of Medicine Lodge | Barber | KS | 37°14′24″N 98°40′55″W﻿ / ﻿37.24°N 98.682°W﻿ / 37.24; -98.682﻿ (Medicine Lodge (May 19, EF0)) | 20:37–20:40 | 0.38 mi (0.61 km) | 50 yd (46 m) | Tornado remained mainly over open country. Some minor tree damage may have occurred, but survey crews were unable to access affected areas. |
| EF1 | SE of Stotts City | Lawrence | MO | 37°03′17″N 93°57′33″W﻿ / ﻿37.0546°N 93.9592°W﻿ / 37.0546; -93.9592﻿ (Stotts City (May 19, EF1)) | 20:42–20:46 | 4.23 mi (6.81 km) | 300 yd (270 m) | Multiple large barns were damaged or destroyed, a couple of outbuildings were damaged, and several trees were uprooted. A car was blown off of the interstate and had a piece of wood driven through its windshield. |
| EF0 | NNW of Medicine Lodge | Barber | KS | 37°19′41″N 98°37′01″W﻿ / ﻿37.328°N 98.617°W﻿ / 37.328; -98.617﻿ (Medicine Lodge (May 19, EF0)) | 20:53–21:00 | 2.98 mi (4.80 km) | 150 yd (140 m) | This tornado appeared to be fairly strong, and may have caused tree damage. However, damage surveyors were unable to access the affected areas. |
| EF0 | Northwestern Miller | Lawrence | MO | 37°13′02″N 93°50′51″W﻿ / ﻿37.2173°N 93.8474°W﻿ / 37.2173; -93.8474﻿ (Miller (May 19, EF0)) | 20:57–20:58 | 1 mi (1.6 km) | 100 yd (91 m) | The town baseball stadium was damaged, and trees were uprooted or had branches broken off. |
| EF0 | SE of Everton | Dade | MO | 37°17′57″N 93°40′04″W﻿ / ﻿37.2993°N 93.6678°W﻿ / 37.2993; -93.6678﻿ (Everton (May 19, EF0)) | 21:05–21:06 | 0.86 mi (1.38 km) | 100 yd (91 m) | Trees were uprooted. |
| EF0 | NE of Sawyer | Pratt | KS | 37°31′26″N 98°39′04″W﻿ / ﻿37.524°N 98.651°W﻿ / 37.524; -98.651﻿ (Sawyer (May 19, EF0)) | 21:11–21:16 | 2.22 mi (3.57 km) | 50 yd (46 m) | Tornado remained over open country, causing no damage. |
| EF0 | NE of Everton | Dade | MO | 37°21′16″N 93°40′30″W﻿ / ﻿37.3545°N 93.675°W﻿ / 37.3545; -93.675﻿ (Everton (May 19, EF0)) | 21:12–21:13 | 0.47 mi (0.76 km) | 75 yd (69 m) | Several trees were uprooted. |
| EF0 | ESE of Isabel to SSE of Cairo | Barber, Pratt | KS | 37°27′58″N 98°32′10″W﻿ / ﻿37.466°N 98.536°W﻿ / 37.466; -98.536﻿ (Isabel (May 19, EF0)) | 21:14–21:24 | 4.5 mi (7.2 km) | 75 yd (69 m) | Weak tornado remained over open country and caused no damage. |
| EF0 | WNW of Walnut Grove | Greene, Polk | MO | 37°25′19″N 93°35′34″W﻿ / ﻿37.4219°N 93.5928°W﻿ / 37.4219; -93.5928﻿ (Walnut Grove (May 19, EF0)) | 21:19–21:20 | 0.58 mi (0.93 km) | 100 yd (91 m) | Several trees were uprooted and an outbuilding sustained roof damage. |
| EF0 | N of Nashville | Kingman | KS | 37°32′N 98°25′W﻿ / ﻿37.54°N 98.42°W﻿ / 37.54; -98.42﻿ (Nashville (May 19, EF0)) | 21:22–21:23 | 0.21 mi (0.34 km) | 50 yd (46 m) | Brief tornado over an open field. No damage occurred. |
| EF0 | N of Zenda | Kingman | KS | 37°28′00″N 98°16′52″W﻿ / ﻿37.4666°N 98.2811°W﻿ / 37.4666; -98.2811﻿ (Zenda (May 19, EF0)) | 21:53–21:54 | 0.32 mi (0.51 km) | 50 yd (46 m) | Brief tornado damaged the roof of a metal barn. |
| EF0 | N of Kingman | Kingman | KS | 37°41′N 98°07′W﻿ / ﻿37.68°N 98.11°W﻿ / 37.68; -98.11﻿ (Kingman (May 19, EF0)) | 22:10–22:12 | 0.31 mi (0.50 km) | 50 yd (46 m) | Brief tornado over an open field. Damage occurred. |
| EF0 | ESE of Pretty Prairie | Reno | KS | 37°45′N 97°56′W﻿ / ﻿37.75°N 97.94°W﻿ / 37.75; -97.94﻿ (Pretty Prairie (May 19, EF0)) | 22:32–22:34 | 0.68 mi (1.09 km) | 50 yd (46 m) | Brief tornado over an open field. No damage occurred. |
| EF0 | E of Pretty Prairie | Reno | KS | 37°41′02″N 97°50′39″W﻿ / ﻿37.6839°N 97.8442°W﻿ / 37.6839; -97.8442﻿ (Pretty Prairie (May 19, EF0)) | 22:37–22:39 | 0.64 mi (1.03 km) | 50 yd (46 m) | Brief tornado over an open field. No damage occurred. |
| EFU | SW of Windthorst | Archer | TX | 33°32′56″N 98°28′01″W﻿ / ﻿33.549°N 98.467°W﻿ / 33.549; -98.467﻿ (Windthrost (May 19, EFU)) | 23:00–23:02 | 0.68 mi (1.09 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EF1 | Northern Wardsville | Cole | MO | 38°29′54″N 92°11′05″W﻿ / ﻿38.4982°N 92.1846°W﻿ / 38.4982; -92.1846﻿ (Wardsville (May 19, EF1)) | 23:27–23:29 | 0.95 mi (1.53 km) | 75 yd (69 m) | One home sustained significant roof damage, another sustained minor roof damage, and two large trees fell on a third home. Trees were damaged, some of which were snapped or uprooted. |
| EF0 | SSW of Bala | Clay | KS | 39°15′21″N 96°59′24″W﻿ / ﻿39.2557°N 96.9901°W﻿ / 39.2557; -96.9901﻿ (Bala (May 19, EF0)) | 00:15–00:16 | 0.02 mi (0.032 km) | 20 yd (18 m) | Brief tornado caused minor tree damage. |
| EFU | W of Springer | Carter | OK | 34°18′36″N 97°12′36″W﻿ / ﻿34.31°N 97.2101°W﻿ / 34.31; -97.2101﻿ (Springer (May 19, EFU)) | 00:22 | 0.2 mi (0.32 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | WNW of Springer | Carter | OK | 34°19′56″N 97°12′17″W﻿ / ﻿34.3322°N 97.2048°W﻿ / 34.3322; -97.2048﻿ (Springer (May 19, EFU)) | 00:24 | 0.2 mi (0.32 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EF0 | WSW of Trickham | Coleman | TX | 31°33′36″N 99°17′08″W﻿ / ﻿31.5601°N 99.2855°W﻿ / 31.5601; -99.2855﻿ (Trickham (May 19, EF0)) | 00:27–00:29 | 0.08 mi (0.13 km) | 25 yd (23 m) | Tornado briefly kicked up debris but caused no noticeable damage. |
| EFU | NNW of Springer | Carter | OK | 34°21′00″N 97°09′36″W﻿ / ﻿34.3501°N 97.1601°W﻿ / 34.3501; -97.1601﻿ (Springer (May 19, EFU)) | 00:31–00:33 | 0.2 mi (0.32 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | NNE of Springer | Carter | OK | 34°21′49″N 97°06′48″W﻿ / ﻿34.3635°N 97.1132°W﻿ / 34.3635; -97.1132﻿ (Springer (May 19, EFU)) | 00:47–00:50 | 2 mi (3.2 km) | 400 yd (370 m) | Tornado remained over open country and caused no damage. |
| EF0 | WNW of Strong City | Chase | KS | 38°24′N 96°35′W﻿ / ﻿38.4°N 96.58°W﻿ / 38.4; -96.58﻿ (Strong City (May 19, EF0)) | 00:48–00:49 | 0.21 mi (0.34 km) | 50 yd (46 m) | Brief tornado over an open field. No damage occurred. |
| EF0 | W of Dunlap | Morris | KS | 38°34′48″N 96°27′45″W﻿ / ﻿38.58°N 96.4626°W﻿ / 38.58; -96.4626﻿ (Dunlap (May 19, EF0)) | 01:09 | 0.01 mi (0.016 km) | 25 yd (23 m) | Rope tornado remained over open country. No damage occurred. |
| EF1 | WNW of Elmdale | Chase | KS | 38°24′40″N 96°47′20″W﻿ / ﻿38.411°N 96.789°W﻿ / 38.411; -96.789﻿ (Elmdale (May 19, EF1)) | 01:25–01:36 | 0.8 mi (1.3 km) | 60 yd (55 m) | A machine shed and concrete footings were lifted and thrown into a nearby tree and a few cemetery headstones were moved slightly. A large tree was split down the middle, many large tree branches were snapped, and other minor tree damage occurred. |
| EF0 | NW of Bushong | Lyon | KS | 38°39′37″N 96°15′47″W﻿ / ﻿38.6602°N 96.2631°W﻿ / 38.6602; -96.2631﻿ (Bushong (May 19, EF0)) | 01:38 | 0.01 mi (0.016 km) | 25 yd (23 m) | Tornado remained over open country and caused no damage. |
| EFU | NW of Tishomingo | Johnston | OK | 34°16′01″N 96°42′04″W﻿ / ﻿34.267°N 96.701°W﻿ / 34.267; -96.701﻿ (Tishomingo (May 19, EFU)) | 02:32–02:34 | 1.5 mi (2.4 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | SW of Bromide | Johnston | OK | 34°20′17″N 96°35′57″W﻿ / ﻿34.3381°N 96.5992°W﻿ / 34.3381; -96.5992﻿ (Bromide (May 19, EFU)) | 02:44–02:49 | 2 mi (3.2 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | NNW of Milburn to SW of Bromide | Johnston | OK | 34°20′49″N 96°36′13″W﻿ / ﻿34.347°N 96.6036°W﻿ / 34.347; -96.6036﻿ (Milburn (May 19, EFU)) | 02:56–03:08 | 6 mi (9.7 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |
| EFU | NE of Bromide | Coal | OK | 34°25′30″N 96°29′02″W﻿ / ﻿34.4251°N 96.4838°W﻿ / 34.4251; -96.4838﻿ (Bromide (May 19, EFU)) | 03:13–03:20 | 3 mi (4.8 km) | 50 yd (46 m) | Tornado remained over open country and caused no damage. |

### May 20 event

List of reported tornadoes – Saturday, May 20, 2017 :
| EF# | Location | County / Parish | State | Start Coord. | Time (UTC) | Path length | Max width | Summary |
| EF1 | SE of Wirt | Jefferson | IN | 38°47′20″N 85°25′34″W﻿ / ﻿38.7890°N 85.426°W﻿ / 38.7890; -85.426﻿ (Wirt (May 20, EF1)) | 23:10–23:11 | 0.16 mi (0.26 km) | 30 yd (27 m) | An abandoned farm house was damaged, a house was covered by falling trees, and a camper was rolled three times and destroyed. Trees were snapped and uprooted as well. The inflow winds into the tornado pulled siding off of homes and moved light objects several hundred feet. |
| EF0 | SSW of Wolcott | Benton, White | IN | 40°39′24″N 87°05′59″W﻿ / ﻿40.6566°N 87.0997°W﻿ / 40.6566; -87.0997﻿ (Wolcott (May 20, EF0)) | 23:34–23:39 | 1.22 mi (1.96 km) | 50 yd (46 m) | A small building was knocked down, a small boat on a trailer was flipped, and a small tree was uprooted. |
| EF1 | W of Thorntown | Boone | IN | 40°08′02″N 86°41′44″W﻿ / ﻿40.134°N 86.6956°W﻿ / 40.134; -86.6956﻿ (Thorntown (May 20, EF1)) | 23:40–23:41 | 0.08 mi (0.13 km) | 40 yd (37 m) | Brief tornado removed a large portion of a barn's roof and tossed it several hundred yards into a field. |
| EF1 | Forest | Clinton | IN | 40°21′37″N 86°21′05″W﻿ / ﻿40.3602°N 86.3514°W﻿ / 40.3602; -86.3514﻿ (Forest (May 20, EF1)) | 00:40–00:46 | 1.45 mi (2.33 km) | 40 yd (37 m) | One wall of the Forest volunteer fire station was collapsed and the roof was uplifted, a pole barn had its roof uplifted and its walls partially collapsed, a residence sustained minor roof damage, and trees were uprooted. |

### Chetek – Conrath, Wisconsin

This rain-wrapped, multiple-vortex EF3 wedge tornado was the longest-tracked tornado in Wisconsin state history. It moved through rural areas in the northwestern part of the state, producing an 82.53-mile long path of damage through four counties. The tornado touched down in Polk County, several miles east of Clear Lake, very close to the Polk/Barron County line. The first point of damage occurred at a farmstead, where structures sustained EF0 damage and sheet metal was tossed into a field. The tornado then quickly crossed into Barron County. Further to the northeast, some trees were downed and another farm sustained EF0 damage, with barrels being rolled out into a field and a pole barn having its doors blown in. Continuing along an east-northeasterly path through rural areas of the county, the tornado reached EF1 intensity, snapping and uprooting many trees and striking several farms. Sheds and outbuildings were damaged or destroyed, with sheet metal thrown and wrapped around trees and pieces of lumber speared into the ground. Two silos were sheared off as well. The tornado then widened and began moving in a more due-easterly direction, reaching EF2 strength as it crossed the Red Cedar River. Outbuildings were completely destroyed, a house had its roof torn off, many trees were snapped, and several other homes and a warehouse building sustained heavy roof damage in this area. Several mobile homes were destroyed further to the east before the tornado crossed US 53 northeast of Chetek. High-end EF2 damage occurred in this area as the Prairie Lakes Estates mobile home park sustained devastating damage. Numerous mobile homes were completely destroyed at this location, with large amounts of debris scattered throughout a nearby wooded area. Structural debris, furniture, clothing, and appliances were strewn throughout the park, and several vehicles were damaged or destroyed. Many trees were snapped and denuded in this area as well. One person at Prairie Lakes was killed and several others were injured, some critically. The tornado then struck a nearby turkey farm, where several large turkey barns were completely flattened with the debris strewn downwind, killing at least 25,000 turkeys. Several wooden power poles were snapped in this area as well. The tornado maintained high-end EF2 strength as it crossed Prairie Lake, where a wide swath of trees was flattened and several lakeside cottages sustained total roof loss and collapse of exterior walls. Weakening to EF1 strength and resuming a more northeasterly path, the tornado then crossed Mud Lake, snapping many more trees and causing mostly minor damage to numerous RVs, mobile homes, and lakeside homes. Past Mud Lake, several rural properties and farmsteads were struck at EF1 intensity, with outbuildings and garages destroyed. In Barron County alone, 40 homes were destroyed, 45 were heavily damaged, and 75 others sustained minor damage. Four businesses were destroyed, and two others were damaged.
Maintaining EF1 strength, the tornado continued into Rusk County and destroyed or damaged numerous outbuildings and downed many trees. An isolated pocket of EF2 damage occurred several miles east of the Rusk County line, as a frame home had its roof ripped off and a nearby detached garage was completely destroyed. Debris was blown into a nearby wooded area, along with a large metal propane tank. EF1 damage continued through rural areas of the county, with countless trees snapped or uprooted, many outbuildings damaged or destroyed, and homes sustaining roof damage. A silo had its metal top blown off, and cabins sustained damage at Amacoy Lake. Past Amacoy Lake, many additional trees were downed and more outbuildings were damaged or destroyed. As the tornado approached the small village of Conrath, it re-strengthened back to EF2 intensity. A large barn was completely destroyed, a detached garage was swept away, and a manufactured home was damaged in this area. As the tornado passed just north of Conrath, it reached its maximum intensity. A poorly anchored home was completely leveled at EF3 intensity in this area, with only a pile of rubble left behind. Nearby trees were snapped and denuded as well. Past Conrath, the tornado rapidly weakened back to EF1 strength as it continued to the east, damaging or destroying outbuildings and downing numerous trees. In Rusk County, one home was destroyed, three were severely damaged, and 21 sustained minor damage. Damage along the remainder of the path and into Price County consisted entirely of EF0 level tree damage. The tornado dissipated to the west-southwest of Ogema. The tornado reached a maximum width of 1,320 yards and killed one person. 25 others were injured.