A volatile environment featured a warm front from parts of east central South Dakota into western Minnesota, with a dryline extending to the southwest into Nebraska. With a very strong wave moving northeast through Nebraska into a highly unstable and highly sheared environment, scattered storms initiated and quickly grew upscale to a broad linear structure with damaging winds. With crop development well behind schedule and many fields yet to be planted, there was ample dirt available to be lofted into the leading edge of the storms, which took on the characteristics of a haboob reducing visibility to near zero at the onset of high winds.
A broad swath of winds from 70 to 100 mph devastated much of southeast South Dakota, and portions of southwest Minnesota, northeast Nebraska and northwest Iowa, causing extensive tree and structural damage and scores of injuries. The highest observed wind gust was 107 mph near Tripp, SD. In addition, vehicles and high profile vehicles were blown off several roads, shutting down traffic on Interstates 29 and 90. Two (direct) fatalities occurred in vehicles impacted by debris as the storms moved into the Sioux Falls area. Power was disrupted in a widespread area, with estimates of over 45,000 customers impacted at one time. Many schools were closed due to damage and power issues. The South Dakota Governor requested and was granted a Presidential Disaster Declaration for damage to public infrastructure at an estimated cost of 6.7 million dollars across 20 counties and two reservations. Private losses were a much higher toll, and just one of the impacted counties (McCook) estimated at least 150 to 175 million dollars in damage. Presidential Disaster Declarations were also granted in Dixon County, Nebraska and Lincoln County, Minnesota.
Following the afternoon line of storms, a secondary band of storms developed near the core of the upper level jet across eastern Nebraska in the early evening hours. These storms also quickly become severe, with a mix of large hail, damaging wind, and even an isolated tornado near Sioux City. This cluster of storms moved through far southeast South Dakota, northwest Iowa and southwest Minnesota during the evening.

Thunderstorm Wind in CLAY, SOUTH DAKOTA
From 12-MAY-22 15:40:00 to 12-MAY-22 15:44:00 (CST-6)
Location: DALESBURG
Magnitude: 71.00 MG
Crop damage: 80.00K
Reported by: Mesonet

A thunderstorm wind gust of 82 mph was measured by South Dakota State University mesonet site BFMS2 5 miles south-southeast of Centerville. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 12-MAY-22 15:32:00 to 12-MAY-22 15:35:00 (CST-6)
Location: MITCHELL
Magnitude: 50.00 MG
Crop damage: 8.00K
Reported by: Mesonet

A thunderstorm wind gust of 58 mph was measured by mesonet site FW9779 4 miles south-southeast of Mitchell. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 12-MAY-22 15:17:00 to 12-MAY-22 15:22:00 (CST-6)
Location: PLANKINTON
Magnitude: 87.00 EG
Crop damage: 21.00K
Reported by: Emergency Manager

Approximately one-half mile of power poles were snapped, with many laying across Old Highway 16 west of Plankinton. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in BON HOMME, SOUTH DAKOTA
From 12-MAY-22 15:18:00 to 12-MAY-22 15:21:00 (CST-6)
Location: TYNDALL
Magnitude: 61.00 EG
Crop damage: 87.00K
Reported by: Public

Thunderstorm winds blew outdoor furniture all over. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:40:00 to 12-MAY-22 16:44:00 (CST-6)
Location: WHITE
Magnitude: 63.00 MG
Crop damage: 35.00K
Reported by: Mesonet

A thunderstorm wind gust of 73 mph was measured by South Dakota State University mesonet site OAKS2 4 miles south-southeast of Astoria. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:48:00 to 12-MAY-22 15:52:00 (CST-6)
Location: STANLEY CORNER
Magnitude: 78.00 EG
Crop damage: 114.00K
Reported by: Emergency Manager

Several pieces of farm equipment were blown across the road, with significant damage to outbuildings. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:25:00 to 12-MAY-22 16:29:00 (CST-6)
Location: FLANDREAU
Magnitude: 78.00 EG
Crop damage: 36.00K
Reported by: Public

The walls collapsed on a farm outbuilding and three pine trees were snapped. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 18:34:00 to 12-MAY-22 18:37:00 (CST-6)
Location: ALSEN
Magnitude: 58.00 MG
Crop damage: 6.00K
Reported by: Department of Highways

A thunderstorm wind gust of 67 mph was measured by South Dakota Road Weather Information System site SD508 3 miles south-southwest of Beresford. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in DOUGLAS, SOUTH DAKOTA
From 12-MAY-22 15:01:00 to 12-MAY-22 15:05:00 (CST-6)
Location: CORSICA
Magnitude: 54.00 MG
Crop damage: 1.00K
Reported by: Department of Highways

A thunderstorm wind gust of 62 mph was measured by South Dakota Road Weather Information System site SD601 3 miles south of Corsica. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in HANSON, SOUTH DAKOTA
From 12-MAY-22 15:49:00 to 12-MAY-22 15:53:00 (CST-6)
Location: ALEXANDRIA
Magnitude: 70.00 MG
Crop damage: 65.00K
Reported by: Mesonet

A thunderstorm wind gust of 81 mph was measured by South Dakota Road Weather Information System site SD502 4 miles east-northeast of Alexandria. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 12-MAY-22 15:35:00 to 12-MAY-22 15:39:00 (CST-6)
Location: FREEMAN
Magnitude: 73.00 MG
Crop damage: 66.00K
Reported by: Department of Highways

A thunderstorm wind gust of 84 mph was measured by South Dakota Road Weather Information System site SD530 5 miles south of Freeman. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in CHARLES MIX, SOUTH DAKOTA
From 12-MAY-22 15:16:00 to 12-MAY-22 15:20:00 (CST-6)
Location: DANTE
Magnitude: 70.00 EG
Crop damage: 85.00K
Reported by: Emergency Manager

A large grain bin was severely damaged. Multiple nearby farm outbuildings were also damaged. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in KINGSBURY, SOUTH DAKOTA
From 12-MAY-22 16:23:00 to 12-MAY-22 16:27:00 (CST-6)
Location: LAKE PRESTON
Magnitude: 87.00 EG
Crop damage: 17.00K
Reported by: Trained Spotter

Seven to eight power poles were snapped. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:14:00 to 12-MAY-22 16:18:00 (CST-6)
Location: NUNDA
Magnitude: 74.00 EG
Crop damage: 71.00K
Reported by: Trained Spotter

Five large trees were knocked down and a roof blown off of a barn. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in LINCOLN, SOUTH DAKOTA
From 12-MAY-22 18:41:00 to 12-MAY-22 18:44:00 (CST-6)
Location: LENNOX SKIE ARPT
Magnitude: 66.00 MG
Crop damage: 23.00K
Reported by: Department of Highways

A thunderstorm wind gust of 76 mph was measured by South Dakota Road Weather Information System site SD519 5 miles south-southwest of Worthing. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:21:00 to 12-MAY-22 15:25:00 (CST-6)
Location: (YKN)CHAN GURNEY ARP
Magnitude: 62.00 MG
Crop damage: 4.00K
Reported by: AWOS

A thunderstorm wind gust of 71 mph was measured by Automated Weather Observing System site KYKN 2 miles northeast of Yankton. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:24:00 to 12-MAY-22 16:28:00 (CST-6)
Location: VOLGA
Magnitude: 63.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 73 mph was measured by South Dakota State University mesonet site VGAS2 1 mile south of Volga.

Thunderstorm Wind in TURNER, SOUTH DAKOTA
From 12-MAY-22 15:34:00 to 12-MAY-22 15:39:00 (CST-6)
Location: HURLEY
Magnitude: 78.00 EG
Crop damage: 150.00K
Reported by: Public

Intense thunderstorm winds demolished half of a cattle shed with debris strewn across the property.  A wooden shed had two sliding doors ripped off, with a large pine tree also uprooted. Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 12-MAY-22 15:25:00 to 12-MAY-22 15:27:00 (CST-6)
Location: TRIPP
Magnitude: 93.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 107 mph was measured by South Dakota Road Weather Information System site SD570 2 miles northwest of Tripp.  The town grain elevated was destroyed.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 15:56:00 to 12-MAY-22 16:00:00 (CST-6)
Location: HARTFORD
Magnitude: 65.00 EG
Reported by: Public

Numerous 3 to 6 inch limbs were downed by thunderstorm winds.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 15:45:00 to 12-MAY-22 15:49:00 (CST-6)
Location: JEFFERSON
Magnitude: 54.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 62 mph was measured by  South Dakota Road Weather Information System site SD550 3 miles southeast of Jefferson.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 18:24:00 to 12-MAY-22 18:27:00 (CST-6)
Location: ELK PT
Magnitude: 52.00 MG
Reported by: Mesonet

A wind gust of 60 mph was measured by a personal weather station west of Jefferson.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:57:00 to 12-MAY-22 16:01:00 (CST-6)
Location: MONTROSE
Magnitude: 67.00 MG
Reported by: Department of Highways

A thunderstorm wind gust of 77 mph was measured by South Dakota Road Weather Information System site SD547 3 miles southeast of Montrose.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:25:00 to 12-MAY-22 16:29:00 (CST-6)
Location: AHNBERG
Magnitude: 78.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A business in Arlington sustained significant roof damage. A nearby church also lost part of its roof.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:16:00 to 12-MAY-22 16:20:00 (CST-6)
Location: JUNIUS
Magnitude: 78.00 MG
Reported by: Public

A personal weather station measured a thunderstorm wind gust of 90 mph. Nearby Lake Herman State Park was closed due to extensive tree damage, with an unoccupied camper crushed by a falling tree.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 18:13:00 to 12-MAY-22 18:16:00 (CST-6)
Location: JEFFERSON
Magnitude: 69.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 79 mph was measured by South Dakota Road Weather Information System site SD550 3 miles southeast of Jefferson.

Thunderstorm Wind in JERAULD, SOUTH DAKOTA
From 12-MAY-22 15:40:00 to 12-MAY-22 15:43:00 (CST-6)
Location: LANE
Magnitude: 65.00 MG
Reported by: Department of Highways

A thunderstorm wind gust of 75 mph was measured by South Dakota Road Weather Information System site SD603 1 mile west of Lane.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:15:00 to 12-MAY-22 16:19:00 (CST-6)
Location: CAVOUR
Magnitude: 57.00 MG
Reported by: Department of Highways

A thunderstorm wind gust of 66 mph was measured by South Dakota Road Weather Information System site SD515 3 miles east of Cavour.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:10:00 to 12-MAY-22 16:14:00 (CST-6)
Location: (HON)HURON ARPT
Magnitude: 70.00 EG
Reported by: Emergency Manager

The county Emergency Manager estimated wind gusts up to 70 mph.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 18:14:00 to 12-MAY-22 18:17:00 (CST-6)
Location: JEFFERSON
Magnitude: 65.00 EG
Reported by: Emergency Manager

Numerous powerlines and trees were downed through the city of Jefferson.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:09:00 to 12-MAY-22 16:11:00 (CST-6)
Location: MADISON
Magnitude: 91.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Two rental storage facilities were destroyed.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:09:00 to 12-MAY-22 16:11:00 (CST-6)
Location: MADISON
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple mobile homes received roof damage.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:09:00 to 12-MAY-22 16:11:00 (CST-6)
Location: MADISON
Magnitude: 96.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A single family home lost large sections of its roof. Another nearby residence had significant damage to its attached garage. Many nearby trees were either uprooted or had large broken branches.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:11:00 to 12-MAY-22 16:13:00 (CST-6)
Location: MADISON
Magnitude: 78.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A mobile home lost a large section of its roof.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:11:00 to 12-MAY-22 16:13:00 (CST-6)
Location: MADISON
Magnitude: 91.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A rental storage facility was destroyed.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:17:00 to 12-MAY-22 15:21:00 (CST-6)
Location: LESTERVILLE
Magnitude: 74.00 EG
Reported by: Emergency Manager

A building at the fertilizer plant in Lesterville was damaged.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:17:00 to 12-MAY-22 16:21:00 (CST-6)
Location: EGAN
Magnitude: 78.00 EG
Reported by: Public

A large grain bin at the Egan grain elevator was destroyed.

Thunderstorm Wind in CHARLES MIX, SOUTH DAKOTA
From 12-MAY-22 15:07:00 to 12-MAY-22 15:11:00 (CST-6)
Location: GREENWOOD
Magnitude: 83.00 EG
Reported by: Emergency Manager

An attached garage was ripped from a single-family home and destroyed.

Thunderstorm Wind in CHARLES MIX, SOUTH DAKOTA
From 12-MAY-22 15:18:00 to 12-MAY-22 15:22:00 (CST-6)
Location: DANTE
Magnitude: 70.00 EG
Reported by: Emergency Manager

A large trailer was flipped and wedged against a barn.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:53:00 to 12-MAY-22 15:57:00 (CST-6)
Location: SALEM
Magnitude: 83.00 EG
Reported by: Emergency Manager

A 40 by 60 foot outbuilding was destroyed by thunderstorm winds. The single family home next door lost some shingles and had a broken front window.

Thunderstorm Wind in CHARLES MIX, SOUTH DAKOTA
From 12-MAY-22 15:15:00 to 12-MAY-22 15:20:00 (CST-6)
Location: DANTE
Magnitude: 83.00 EG
Reported by: Public

Extensive damage was done to numerous buildings in Dante. An 80 foot by 200 foot building and 42 foot by 60 foot building each had only one remaining wall standing. Numerous trees were uprooted, and several roofs were ripped off businesses.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 15:56:00 to 12-MAY-22 16:00:00 (CST-6)
Location: HARTFORD
Magnitude: 74.00 EG
Reported by: Emergency Manager

The windows were blown out and roof torn off of a truck stop.

Thunderstorm Wind in TURNER, SOUTH DAKOTA
From 12-MAY-22 15:46:00 to 12-MAY-22 15:51:00 (CST-6)
Location: PARKER
Magnitude: 65.00 EG
Reported by: Trained Spotter

Thunderstorm winds knocked down numerous trees, which blocked many streets.
Power was out in most sections of town due to downed powerlines.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 12-MAY-22 15:17:00 to 12-MAY-22 15:22:00 (CST-6)
Location: PLANKINTON
Magnitude: 65.00 EG
Reported by: Emergency Manager

Very large trees were uprooted all around Plankinton.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 12-MAY-22 15:20:00 to 12-MAY-22 15:25:00 (CST-6)
Location: PLANKINTON
Magnitude: 70.00 EG
Reported by: Emergency Manager

Massive damage was done to a chicken barn by thunderstorm wind gusts.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 12-MAY-22 15:16:00 to 12-MAY-22 15:21:00 (CST-6)
Location: PLANKINTON
Magnitude: 65.00 EG
Reported by: Public

Thunderstorm wind gusts flipped 12 vehicles on Interstate 90 between White Lake and Plankinton.

Hail in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:02:00 to 12-MAY-22 16:03:00 (CST-6)
Location: HURON
Magnitude: 0.75 
Reported by: Emergency Manager

Hail in MINER, SOUTH DAKOTA
From 12-MAY-22 16:09:00 to 12-MAY-22 16:10:00 (CST-6)
Location: ROSWELL
Magnitude: 0.75 
Crop damage: 5.00K
Reported by: Public

Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Hail in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:10:00 to 12-MAY-22 16:11:00 (CST-6)
Location: (HON)HURON ARPT
Magnitude: 0.88 
Reported by: Emergency Manager

Hail in CLAY, SOUTH DAKOTA
From 12-MAY-22 18:19:00 to 12-MAY-22 18:21:00 (CST-6)
Location: VERMILLION
Magnitude: 0.75 
Reported by: Public

Hail in CLAY, SOUTH DAKOTA
From 12-MAY-22 18:20:00 to 12-MAY-22 18:22:00 (CST-6)
Location: VERMILLION
Magnitude: 1.00 
Reported by: Public

Hail in UNION, SOUTH DAKOTA
From 12-MAY-22 18:21:00 to 12-MAY-22 18:23:00 (CST-6)
Location: MC COOK LAKE
Magnitude: 0.75 
Crop damage: 2.00K
Reported by: Public

Crop damage is an estimate from insured losses. Information provided by the United States Department of Agriculture.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:00:00 to 12-MAY-22 16:04:00 (CST-6)
Location: ELLIS
Magnitude: 63.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 72 mph was measured by South Dakota State University mesonet site SFWS2 3 miles southeast of Wall Lake.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:31:00 to 12-MAY-22 16:35:00 (CST-6)
Location: FLANDREAU
Magnitude: 78.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 90 mph was measured by South Dakota State University mesonet site FLNS2 3 miles north-northeast of Flandreau.

Thunderstorm Wind in BON HOMME, SOUTH DAKOTA
From 12-MAY-22 15:10:00 to 12-MAY-22 15:15:00 (CST-6)
Location: SPRINGFIELD
Magnitude: 74.00 EG
Reported by: Public

Two foot diameter limbs were broken off numerous trees by thunderstorm wind gusts.

Thunderstorm Wind in CLAY, SOUTH DAKOTA
From 12-MAY-22 15:30:00 to 12-MAY-22 15:35:00 (CST-6)
Location: VERMILLION
Magnitude: 61.00 EG
Reported by: Public

Multiple 3 inch branches were broken off trees by thunderstorm winds.

Thunderstorm Wind in CLAY, SOUTH DAKOTA
From 12-MAY-22 15:28:00 to 12-MAY-22 15:32:00 (CST-6)
Location: MECKLING
Magnitude: 75.00 EG
Reported by: Emergency Manager

A semi-truck was blown over between Meckling and Vermillion on State Highway 50.

Thunderstorm Wind in CLAY, SOUTH DAKOTA
From 12-MAY-22 15:30:00 to 12-MAY-22 15:35:00 (CST-6)
Location: VERMILLION
Magnitude: 56.00 EG
Reported by: Public

Several shingles were removed from a house by thunderstorm winds.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 15:36:00 to 12-MAY-22 15:40:00 (CST-6)
Location: ELK PT
Magnitude: 61.00 EG
Reported by: Public

Thunderstorms winds downed several 3 inch diameter tree branches.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:00:00 to 12-MAY-22 16:05:00 (CST-6)
Location: (HON)HURON ARPT
Magnitude: 78.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous pine trees were uprooted by thunderstorm winds. Power was knocked out across the southern portions of Huron.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:02:00 to 12-MAY-22 16:07:00 (CST-6)
Location: SOUTH SIOUX FALLS
Magnitude: 70.00 EG
Reported by: Public

Numerous moderate branches up to 3 inches in diameter were downed by thunderstorm winds.

Hail in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:00:00 to 12-MAY-22 16:02:00 (CST-6)
Location: HURON
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in BON HOMME, SOUTH DAKOTA
From 12-MAY-22 15:12:00 to 12-MAY-22 15:17:00 (CST-6)
Location: TYNDALL
Magnitude: 83.00 EG
Reported by: COOP Observer

Thunderstorm wind gusts were estimated between 90 and 100 mph with considerable tree and structure damage around Tyndall.  A county maintenance shed was destroyed.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 12-MAY-22 15:17:00 to 12-MAY-22 15:22:00 (CST-6)
Location: PLANKINTON
Magnitude: 65.00 EG
Reported by: Emergency Manager

Numerous powerlines were downed by falling trees throughout Plankinton.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:50:00 to 12-MAY-22 15:55:00 (CST-6)
Location: CANISTOTA
Magnitude: 109.00 EG
Reported by: Public

A 1480-foot TV broadcast tower built in 1976 was downed by thunderstorm winds.

Thunderstorm Wind in LINCOLN, SOUTH DAKOTA
From 12-MAY-22 16:00:00 to 12-MAY-22 16:04:00 (CST-6)
Location: CANTON
Magnitude: 69.00 EG
Reported by: Emergency Manager

A roof was torn off of a building by thunderstorm wind gusts.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 12-MAY-22 15:28:00 to 12-MAY-22 15:31:00 (CST-6)
Location: TRIPP
Magnitude: 52.00 EG
Reported by: Law Enforcement

Law enforcement in Tripp estimated winds to be around 60 mph.

Thunderstorm Wind in CHARLES MIX, SOUTH DAKOTA
From 12-MAY-22 14:40:00 to 12-MAY-22 14:44:00 (CST-6)
Location: PLATTE
Magnitude: 53.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 61 mph was measured by mesonet site FW5858 9 miles southwest of Platte.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:25:00 to 12-MAY-22 15:29:00 (CST-6)
Location: GAYVILLE
Magnitude: 77.00 MG
Reported by: Department of Highways

A thunderstorm wind gust of 89 mph was measured by South Dakota Road Weather Information System site SD532 2 miles west-southwest of Gayville.  Extensive building damage was noted in Gayville.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 12-MAY-22 15:32:00 to 12-MAY-22 15:36:00 (CST-6)
Location: PARKSTON ARPT
Magnitude: 56.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 65 mph was measured by South Dakota State University mesonet site PSTS2 1 mile south-southwest of Parkston.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 12-MAY-22 16:01:00 to 12-MAY-22 16:03:00 (CST-6)
Location: (HON)HURON ARPT
Magnitude: 78.00 MG
Reported by: ASOS

A thunderstorm wind gust of 90 mph was measured by Automated Surface Observing System site KHON 2 miles north-northwest of Huron.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:03:00 to 12-MAY-22 16:07:00 (CST-6)
Location: ELLIS
Magnitude: 65.00 EG
Reported by: Public

Several 3 inch tree branches were downed by thunderstorm winds.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:05:00 to 12-MAY-22 16:10:00 (CST-6)
Location: BALTIC
Magnitude: 62.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 71 mph was measured by South Dakota State University mesonet site BTCS2 3 miles southeast of Baltic.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:05:00 to 12-MAY-22 16:09:00 (CST-6)
Location: COLTON
Magnitude: 70.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 81 mph was measured by South Dakota State University mesonet site CTNS2 2 miles east-southeast of Colton.  Wind-driven debris went through the windshield of a vehicle and caused the (direct) fatality to the passenger near Colton.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:02:00 to 12-MAY-22 16:06:00 (CST-6)
Location: SOUTH SIOUX FALLS
Magnitude: 68.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 78 mph was measured by South Dakota State University mesonet site SFSS2 3 miles south-southwest of Sioux Falls.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:09:00 to 12-MAY-22 16:13:00 (CST-6)
Location: MADISON MUNI ARPT
Magnitude: 84.00 MG
Reported by: AWOS

A thunderstorm wind gust of 97 mph was measured by Automated Weather Observing System site KMDS 1 mile east-northeast of Madison.  Extensive tree and building damage occurred throughout the city.  Five families were displaced as damage to their houses from wind and falling trees rendered residences uninhabitable.  Several 500 lb. tanks from an agricultural supply story were blown across a four lane highway into the water treatment plant. Three of the tanks ended up in a creek by the water treatment plant, with one severely damaging the cooperative observation equipment.

Thunderstorm Wind in AURORA, SOUTH DAKOTA
From 12-MAY-22 15:15:00 to 12-MAY-22 15:19:00 (CST-6)
Location: WHITE LAKE
Magnitude: 51.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 59 mph was measured by South Dakota State University mesonet site WTES2 1 mile east-northeast of White Lake.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:26:00 to 12-MAY-22 16:30:00 (CST-6)
Location: (BKX)BROOKINGS MUNI
Magnitude: 69.00 MG
Reported by: AWOS

A thunderstorm wind gust of 79 mph was measured by Automated Weather Observing System site KBKX 2 miles southwest of Brookings.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 15:37:00 to 12-MAY-22 15:41:00 (CST-6)
Location: ELK PT
Magnitude: 61.00 EG
Reported by: Emergency Manager

Significant tree damage occurred in and around Elk Point.

Thunderstorm Wind in KINGSBURY, SOUTH DAKOTA
From 12-MAY-22 16:23:00 to 12-MAY-22 16:27:00 (CST-6)
Location: HETLAND
Magnitude: 78.00 EG
Reported by: Trained Spotter

Thunderstorm winds destroyed a barn, with debris strewn across U.S. Highway 14.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 15:40:00 to 12-MAY-22 15:44:00 (CST-6)
Location: JEFFERSON
Magnitude: 65.00 EG
Reported by: Emergency Manager

Multiple semi-trucks were flipped on I-29 between Elk Point and Jefferson.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:09:00 to 12-MAY-22 16:13:00 (CST-6)
Location: DELL RAPIDS
Magnitude: 74.00 EG
Reported by: Public

Thunderstorm winds downed several trees and damaged an outbuilding at the high school.

Thunderstorm Wind in KINGSBURY, SOUTH DAKOTA
From 12-MAY-22 16:25:00 to 12-MAY-22 16:29:00 (CST-6)
Location: ARLINGTON
Magnitude: 78.00 EG
Reported by: Trained Spotter

The tops of two grain silos were ripped off and crushed in.  Portions of roofs were peeled off downtown, with multiple trees down throughout town.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:15:00 to 12-MAY-22 16:19:00 (CST-6)
Location: WENTWORTH
Magnitude: 83.00 MG
Reported by: Mesonet

A personal weather station measured a thunderstorm wind gust of 96 mph.

Thunderstorm Wind in BON HOMME, SOUTH DAKOTA
From 12-MAY-22 15:23:00 to 12-MAY-22 15:27:00 (CST-6)
Location: SCOTLAND
Magnitude: 76.00 MG
Reported by: Mesonet

A personal weather station measured a thunderstorm wind gust of 88 mph.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:14:00 to 12-MAY-22 16:18:00 (CST-6)
Location: LONE TREE
Magnitude: 74.00 EG
Reported by: Public

A farm outbuilding wall was blown out.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:26:00 to 12-MAY-22 16:30:00 (CST-6)
Location: AURORA
Magnitude: 78.00 EG
Reported by: Emergency Manager

Several rail cars were tipped over, with numerous trees uprooted, some onto homes. Fences throughout town were blown down.  A semi-truck was rolled on Highway 14 just north of town.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:24:00 to 12-MAY-22 16:28:00 (CST-6)
Location: BROOKINGS
Magnitude: 78.00 EG
Reported by: Public

The walls of a local business collapsed after the large south-facing doors failed.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:24:00 to 12-MAY-22 16:28:00 (CST-6)
Location: VOLGA
Magnitude: 65.00 EG
Reported by: Public

Two grain bins were blown off their foundations.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:18:00 to 12-MAY-22 15:23:00 (CST-6)
Location: YANKTON
Magnitude: 65.00 EG
Reported by: Social Media

Thunderstorm winds downed numerous 3 to 4 inch diameter tree limbs.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:54:00 to 12-MAY-22 15:58:00 (CST-6)
Location: SALEM
Magnitude: 83.00 EG
Reported by: Emergency Manager

An attached garage on a single family home was blown out and destroyed by thunderstorm winds.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:24:00 to 12-MAY-22 15:28:00 (CST-6)
Location: GAYVILLE
Magnitude: 74.00 EG
Reported by: Emergency Manager

A farm outbuilding door and wall were blown out.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:26:00 to 12-MAY-22 15:30:00 (CST-6)
Location: GAYVILLE
Magnitude: 78.00 EG
Reported by: Emergency Manager

Multiple pine trees were uprooted and a farm outbuilding was destroyed.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:23:00 to 12-MAY-22 15:27:00 (CST-6)
Location: MISSION HILL
Magnitude: 70.00 EG
Reported by: Emergency Manager

A wall was blown out of a farm outbuilding.

Thunderstorm Wind in HUTCHINSON, SOUTH DAKOTA
From 12-MAY-22 15:24:00 to 12-MAY-22 15:28:00 (CST-6)
Location: TRIPP
Magnitude: 61.00 EG
Reported by: Public

Multiple roof panels blew off a large poultry barn near Tripp.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:48:00 to 12-MAY-22 15:52:00 (CST-6)
Location: SPENCER
Magnitude: 70.00 EG
Reported by: NWS Employee

Multiple grain bins were heavily damaged.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:10:00 to 12-MAY-22 16:14:00 (CST-6)
Location: DELL RAPIDS
Magnitude: 78.00 EG
Reported by: Public

A large farm outbuilding lost a significant portion of its roof, allowing the walls to collapse. Three nearby grain bins were also damaged.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:18:00 to 12-MAY-22 16:22:00 (CST-6)
Location: COLMAN
Magnitude: 70.00 EG
Reported by: Public

A recreational vehicle was flipped and destroyed near Lake Campbell.

Thunderstorm Wind in UNION, SOUTH DAKOTA
From 12-MAY-22 18:12:00 to 12-MAY-22 18:15:00 (CST-6)
Location: NORTH SIOUX CITY
Magnitude: 74.00 EG
Reported by: Emergency Manager

Numerous trees were snapped with powerlines down throughout Dakota Dunes.

Thunderstorm Wind in BEADLE, SOUTH DAKOTA
From 12-MAY-22 15:57:00 to 12-MAY-22 16:01:00 (CST-6)
Location: HURON
Magnitude: 61.00 EG
Reported by: Public

Moderate tree damage was done by strong thunderstorm wind gusts.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:02:00 to 12-MAY-22 16:06:00 (CST-6)
Location: SIOUX FALLS
Magnitude: 65.00 EG
Reported by: Emergency Manager

A tree was blown down onto a house.  A large tree was also blown down on a car which resulted in the fatality of the driver.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:21:00 to 12-MAY-22 16:25:00 (CST-6)
Location: FLANDREAU
Magnitude: 78.00 EG
Reported by: Public

A portion of roof decking was removed on the corner of an apartment building.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:28:00 to 12-MAY-22 16:34:00 (CST-6)
Location: VOLGA
Magnitude: 64.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 74 mph was measured by South Dakota State University mesonet site VGAS2 1 mile south of Volga.

Thunderstorm Wind in MINNEHAHA, SOUTH DAKOTA
From 12-MAY-22 16:04:00 to 12-MAY-22 16:09:00 (CST-6)
Location: (FSD)JOE FOSS FLD SI
Magnitude: 55.00 MG
Reported by: ASOS

A thunderstorm wind gust of 63 mph was measured by Automated Surface Observing System site KFSD at the Sioux Falls Regional Airport.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:55:00 to 12-MAY-22 15:59:00 (CST-6)
Location: SALEM
Magnitude: 76.00 MG
Reported by: Emergency Manager

Wind was measured by hand-held anemometer.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:18:00 to 12-MAY-22 15:22:00 (CST-6)
Location: UTICA
Magnitude: 65.00 EG
Reported by: Emergency Manager

The grain elevator in Utica was severely damaged.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:18:00 to 12-MAY-22 15:22:00 (CST-6)
Location: LESTERVILLE
Magnitude: 70.00 EG
Reported by: Emergency Manager

Multiple single-family homes in Lesterville lost shingles. Large tree branches were also downed.

Thunderstorm Wind in LAKE, SOUTH DAKOTA
From 12-MAY-22 16:08:00 to 12-MAY-22 16:12:00 (CST-6)
Location: JUNIUS
Magnitude: 84.00 EG
Reported by: Public

A single-family home lost its front porch overhang and a large portion of the roof.

Thunderstorm Wind in MOODY, SOUTH DAKOTA
From 12-MAY-22 16:15:00 to 12-MAY-22 16:18:00 (CST-6)
Location: COLMAN
Magnitude: 56.00 EG
Reported by: Public

Large and mature trees were bent over at least 30 degrees.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:26:00 to 12-MAY-22 16:30:00 (CST-6)
Location: BROOKINGS
Magnitude: 80.00 EG
Reported by: Emergency Manager

Numerous vehicles were blown over. Trees were snapped with widespread damage to houses and roofs throughout town, and most without power into the next day.  The Brookings Marathon scheduled for a couple days later was cancelled.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:54:00 to 12-MAY-22 15:59:00 (CST-6)
Location: SALEM
Magnitude: 83.00 EG
Reported by: Emergency Manager

Multiple single family homes sustained significant damage to attached garages.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:54:00 to 12-MAY-22 15:59:00 (CST-6)
Location: SALEM
Magnitude: 83.00 EG
Reported by: Emergency Manager

The roof overhang on an outdoor patio at a nursing home in Salem was ripped off and tossed across an open lot to the north. A single-family home downstream of the nursing home sustained significant damage to its attached garage. At least two other outbuildings were severely damaged or destroyed. Widespread tree damage was reported across town while other single family homes sustained damage to their roofs or garages.

Thunderstorm Wind in GREGORY, SOUTH DAKOTA
From 12-MAY-22 14:30:00 to 12-MAY-22 14:33:00 (CST-6)
Location: BONESTEEL
Magnitude: 52.00 EG
Reported by: Trained Spotter

Thunderstorm winds downed numerous three-inch branches.

Thunderstorm Wind in CLAY, SOUTH DAKOTA
From 12-MAY-22 18:31:00 to 12-MAY-22 18:34:00 (CST-6)
Location: DALESBURG
Magnitude: 53.00 MG
Reported by: Mesonet

A thunderstorm wind gust of 61 mph was measured by South Dakota State University mesonet site BFMS2 3 miles south-southwest of Beresford.

Thunderstorm Wind in BROOKINGS, SOUTH DAKOTA
From 12-MAY-22 16:26:00 to 12-MAY-22 16:28:00 (CST-6)
Location: (BKX)BROOKINGS MUNI
Magnitude: 78.00 EG
Crop damage: 0.00K
Reported by: Public

A business lost large sections of its roof and its back wall was blown out.

Thunderstorm Wind in MCCOOK, SOUTH DAKOTA
From 12-MAY-22 15:48:00 to 12-MAY-22 15:50:00 (CST-6)
Location: CANISTOTA
Magnitude: 83.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A single family home lost sections of its roof.

Thunderstorm Wind in DAVISON, SOUTH DAKOTA
From 12-MAY-22 15:33:00 to 12-MAY-22 15:37:00 (CST-6)
Location: (MHE)MITCHELL ARPT
Magnitude: 51.00 MG
Reported by: ASOS

A thunderstorm wind gust of 59 mph was measured by Automated Surface Observing System site KMHE at the Mitchell Municipal Airport.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:27:00 to 12-MAY-22 15:31:00 (CST-6)
Location: VOLIN
Magnitude: 83.00 EG
Reported by: Emergency Manager

A farm outbuilding was destroyed.

Thunderstorm Wind in YANKTON, SOUTH DAKOTA
From 12-MAY-22 15:27:00 to 12-MAY-22 15:31:00 (CST-6)
Location: YANKTON
Magnitude: 69.00 EG
Reported by: Emergency Manager

A roof was torn from a business and deposited on Highway 50 on the east side of town.