A derecho developed in south central South Dakota and traveled northeast into eastern and northeastern South Dakota. This thunderstorm complex generated 14 total tornadoes across northeastern South Dakota in addition to a broad area of straight-line wind damage with measured speeds up to 102 mph in Gary, SD. The damage swath was so large from this system that it encompassed most of northeastern South Dakota and western Minnesota, with damage to a countless number of homes and trees. The most impactful tornado was an EF-2 which damaged numerous homes in the town of Castlewood and drew national media attention. Governor Kristi Noem requested a Presidential Disaster Declaration, which was later granted, and signed Executive Order 2022-06 to help residents recover from related storm damage. Estimated statewide damage to public infrastructure is assessed at 6.7 million dollars across 20 counties and two reservations. South Dakota National Guard activated personnel to help with clear debris and provide security for the town of Castlewood during cleanup.

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:15:00 to 12-MAY-22 17:15:00 (CST-6)
Location: WEBSTER MUNI ARPT
Magnitude: 61.00 EG
Reported by: Trained Spotter

A trained spotter reported estimated 70 mph wind gusts and tree damage.

Thunderstorm Wind in DEUEL, SOUTH DAKOTA
From 12-MAY-22 16:50:00 to 12-MAY-22 16:50:00 (CST-6)
Location: GARY
Magnitude: 89.00 MG
Reported by: Public

Thunderstorm wind gusts, measuring 102 mph by a personal weather station, also downed trees in the area.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 16:55:00 to 12-MAY-22 16:55:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 70.00 EG
Reported by: Emergency Manager

Trees and power lines were downed by strong wind gusts estimated at upwards of 80 mph. The nearby Watertown Airport weather station reported a peak wind of 76 mph.

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:20:00 to 12-MAY-22 17:20:00 (CST-6)
Location: WEBSTER MUNI ARPT
Magnitude: 59.00 MG
Reported by: Mesonet

Thunderstorm Wind in MARSHALL, SOUTH DAKOTA
From 12-MAY-22 17:45:00 to 12-MAY-22 17:45:00 (CST-6)
Location: LANGFORD
Magnitude: 52.00 MG
Reported by: Mesonet

Funnel Cloud in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:11:00 to 12-MAY-22 17:11:00 (CST-6)
Location: WAVERLY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:30:00 to 12-MAY-22 17:30:00 (CST-6)
Location: PIERPONT
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tornado in GRANT, SOUTH DAKOTA
From 12-MAY-22 17:19:00 to 12-MAY-22 17:21:00 (CST-6)
Location: TWIN BROOKS
Tornado F-scale: EF1
Reported by: NWS Storm Survey

Roughly 300 yards to the south of the farm a calf shed was picked
up and lofted to the north, over the shelterbelt on the south
side of the property. The calf shed would land in the feed lot
area and pushed up against a barn. A stave silo was moved off the
foundation about a foot, but otherwise remained erect. A pole barn
was severely damaged, with the west wall collapsed and the south wall
pushed in. A wood grain bin shifted off the foundation and was
pushed 300 feet to the north. Two empty grain bins were
destroyed. One tossed into a creek on the north end of the
property. The second was destroyed and lofted. A cattle trailer
at the same location was pushed about 100 feet before it was
rolled into the creek. Pieces of debris from the farm would be
found across Highway 12 and over a mile to the north northeast of
the property.

Tornado in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:52:00 to 12-MAY-22 17:53:00 (CST-6)
Location: NEW EFFINGTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Eyewitnesses observed a brief tornado touchdown. No damage
occurred.

Thunderstorm Wind in GRANT, SOUTH DAKOTA
From 12-MAY-22 17:27:00 to 12-MAY-22 17:27:00 (CST-6)
Location: BIG STONE CITY
Magnitude: 70.00 EG
Reported by: Public

The roof of a Big Stone City business was blown off, and parts of it ended up in a tree about 360 feet to the north by estimated 80 mph winds.

Tornado in CLARK, SOUTH DAKOTA
From 12-MAY-22 17:02:00 to 12-MAY-22 17:03:00 (CST-6)
Location: GARDEN CITY
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The tornado touched down quickly on the southern edge of the
farm. A barn completely lost the roof and external walls on about
two thirds of the structure. Debris from the barn was spread to
the northeast. 2x4 s were pierced vertically into the ground and
sheet metal from the barn was wrapped around trees. One
2x4 pierced through the garage attached to the house. Debris
would continue to be found about a quarter mile to the northeast,
across an open field and into the neighbor's farm yard.

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 12-MAY-22 17:21:00 to 12-MAY-22 17:21:00 (CST-6)
Location: RICHMOND
Magnitude: 52.00 EG
Reported by: NWS Employee

A one thousand pound dock was pushed up in the air and moved 80 feet by wind gusts estimated at over 60 mph.

Thunderstorm Wind in GRANT, SOUTH DAKOTA
From 12-MAY-22 17:20:00 to 12-MAY-22 17:20:00 (CST-6)
Location: HILAND
Magnitude: 74.00 EG
Reported by: COOP Observer

Winds damaged building doors and shingles, and downed trees. A nearby weather station reported 84 mph wind gusts.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:02:00 to 12-MAY-22 17:02:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 66.00 MG
Reported by: ASOS

Multiple trees were downed or damaged in Watertown. Buildings were also damaged, including hangers at the airport.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 12-MAY-22 16:21:00 to 12-MAY-22 16:21:00 (CST-6)
Location: BLOOMFIELD
Magnitude: 70.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CLARK, SOUTH DAKOTA
From 12-MAY-22 16:37:00 to 12-MAY-22 16:37:00 (CST-6)
Location: CARPENTER
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MARSHALL, SOUTH DAKOTA
From 12-MAY-22 17:59:00 to 12-MAY-22 17:59:00 (CST-6)
Location: HILLHEAD
Magnitude: 63.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CLARK, SOUTH DAKOTA
From 12-MAY-22 16:36:00 to 12-MAY-22 16:36:00 (CST-6)
Location: WILLOW LAKE
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tornado in DEUEL, SOUTH DAKOTA
From 12-MAY-22 16:58:00 to 12-MAY-22 17:00:00 (CST-6)
Location: GARY
Tornado F-scale: EF2
Reported by: NWS Storm Survey

One mile south of Gary, SD a farm sustained significant tornado damage. The home on the property lost the entire roof, along with most of the external walls on the main floor of the house. Only a portion of the internal walls remained standing. The resident home
at the time was able to make it to the basement, however did sustain minor injuries when a refrigerator from the main floor fell down through the ceiling. The attached garage was completely blown off the foundation, and the pickup in the garage was pushed at least 6 feet from where it was originally parked. Nearby outbuildings sustained roof damage, including a hole in one roof that was likely caused from flying debris. The tornado continued to track north northeast of the farm into an open corn stubble field. Rotation was noted in the stubble. The debris track was spread across the field with large pieces of wood and other construction materials pierced vertically into the ground. Further to the north northeast a semi was turned 180 degrees and flipped
on its side. The debris path continued across 180th Street and was last noted in a tree grove approximately 0.3 miles from the residence. The resident also noted that the family dog was seen being swept out of the house during the tornado, but was later
found safe with only minor injuries after walking to a neighbor's farm about one mile away.

Tornado in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:02:00 to 12-MAY-22 17:03:00 (CST-6)
Location: RAUVILLE
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado occurred 4 miles north of Lake Kampeska. The tornado
hit the northeast side of a house and removed the the garage from
the house, along with part of the roof. The garage was tossed to
the north.  An outbuilding to the north of the house was also
destroyed and thrown to the north and northwest. The debris was
scattered at least a half mile north and northwest of the
location of the house. The family sought shelter in the basement
of the home and they were safe.

Thunderstorm Wind in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:56:00 to 12-MAY-22 17:56:00 (CST-6)
Location: ROSHOLT
Magnitude: 70.00 EG
Reported by: Trained Spotter

Trees were downed across Rosholt by estimated 80 mph wind gusts.

Hail in FAULK, SOUTH DAKOTA
From 12-MAY-22 16:18:00 to 12-MAY-22 16:18:00 (CST-6)
Location: FAULKTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in HAMLIN, SOUTH DAKOTA
From 12-MAY-22 16:52:00 to 12-MAY-22 16:52:00 (CST-6)
Location: ESTELLINE MUNI ARPT
Magnitude: 70.00 EG
Reported by: Trained Spotter

Roof and tree damage was noted, including uprooted trees.

Thunderstorm Wind in DEUEL, SOUTH DAKOTA
From 12-MAY-22 17:04:00 to 12-MAY-22 17:04:00 (CST-6)
Location: CLEAR LAKE MUNI ARPT
Magnitude: 78.00 EG
Reported by: Public

Trees and branches were downed by estimated 90 mph wind gusts.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:15:00 to 12-MAY-22 17:15:00 (CST-6)
Location: SOUTH SHORE
Magnitude: 68.00 MG
Reported by: Mesonet

Thunderstorm Wind in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:36:00 to 12-MAY-22 17:36:00 (CST-6)
Location: SUMMIT
Magnitude: 73.00 MG
Reported by: Mesonet

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:32:00 to 12-MAY-22 17:32:00 (CST-6)
Location: GRENVILLE
Magnitude: 70.00 EG
Reported by: Emergency Manager

Straight-line winds damaged the side of a farm building by removing a few panels.

Thunderstorm Wind in HAMLIN, SOUTH DAKOTA
From 12-MAY-22 16:45:00 to 12-MAY-22 16:45:00 (CST-6)
Location: STONE BRIDGE
Magnitude: 70.00 EG
Reported by: Emergency Manager

One mile of power lines were snapped with winds estimated at 80 mph.

Thunderstorm Wind in DEUEL, SOUTH DAKOTA
From 12-MAY-22 16:50:00 to 12-MAY-22 16:50:00 (CST-6)
Location: CLEAR LAKE
Magnitude: 70.00 EG
Reported by: NWS Storm Survey

The roof of a pole barn was destroyed, and some poles were snapped with debris spread to the north.

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

Public estimated wind speeds of 80 mph.

Thunderstorm Wind in HAMLIN, SOUTH DAKOTA
From 12-MAY-22 16:22:00 to 12-MAY-22 16:22:00 (CST-6)
Location: STONE BRIDGE
Magnitude: 80.00 EG
Reported by: Trained Spotter

Damage to building by estimated 80 mph winds.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 16:55:00 to 12-MAY-22 16:55:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 70.00 EG
Reported by: NWS Storm Survey

Eleven power poles were broken or tipped over along a 2/3 mile stretch of Highway 212. All of the poles were in a swampy area or in water. The damage was just south of a recreation area that also saw a few trees uprooted and a camper tipped over.

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:13:00 to 12-MAY-22 17:13:00 (CST-6)
Location: WEBSTER MUNI ARPT
Magnitude: 70.00 EG
Reported by: Emergency Manager

Several roof panels were lifted off a farm building.

Tornado in HAMLIN, SOUTH DAKOTA
From 12-MAY-22 16:40:00 to 12-MAY-22 16:41:00 (CST-6)
Location: HAZEL
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The residents were outside when they saw the tornado quickly develop and were forced to seek shelter under a tractor. The tornado ripped the entire roof off of a newly built machine shed and also damaged the exterior walls. Debris was spread to the north, with sheet metal and pieces of rafters lofted into nearby trees.  The tornado continued to track north northwest about a half mile. The tops of trees were snapped off in one shelterbelt and a clear path was evident in a second shelterbelt.

Tornado in DEUEL, SOUTH DAKOTA
From 12-MAY-22 17:05:00 to 12-MAY-22 17:07:00 (CST-6)
Location: TUNERVILLE
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado touched down on the northeast side of Lake Alice
causing damage to a hunting lodge property. Evidence was first
noted in a corn stubble field where stubble was broken and
flattened. North of the corn field, several trees were uprooted
or snapped at the base. North from there, the main lodge house
lost half the roof covering and several roof panels on the west
side of the house. This resulted in rain damage inside the lodge.
On the west side of the property a family was in a camper when
they received warnings and decided to leave for a sturdier
shelter nearby. Minutes after they left the camper, it was picked
up and dropped on its roof. The family was not injured.

Tornado in CLARK, SOUTH DAKOTA
From 12-MAY-22 16:45:00 to 12-MAY-22 16:46:00 (CST-6)
Location: ELROD
Tornado F-scale: EF0
Reported by: NWS Storm Survey

A brief tornado touchdown resulted in the loss of half a barn
roof. Debris from the barn was spread to the north northwest. The
small track was evident through a shelterbelt where large tree
branches were broken and debris was left in the upper reaches of
the trees. Barn debris would continue to track into an open field
roughly 0.3 miles from the original location. Other structures on
the property were also damaged by wind and flying debris.

Thunderstorm Wind in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:48:00 to 12-MAY-22 17:48:00 (CST-6)
Location: SISSETON ARPT
Magnitude: 70.00 EG
Reported by: Trained Spotter

Campers were rolled by estimated 80 mph wind gusts.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 16:57:00 to 12-MAY-22 16:57:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 70.00 EG
Reported by: NWS Storm Survey

Straight line winds lofted a storage shed and tossed it to the north northwest. The shed hit and damaged the corner of the barn to the north and then fell to the ground. All the items in the storage shed were still in their place, including an RV, car, 4 wheeler and other small items.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 16:57:00 to 12-MAY-22 16:57:00 (CST-6)
Location: KRANZBURG
Magnitude: 70.00 EG
Reported by: NWS Storm Survey

A barn collapsed about a half mile to the south-southwest of Kranzburg. There was only a very limited amount of debris pushed northeast, largely within 20 to 30 feet of the building. There was tree that was knocked down about 80 yards to the north of the barn. No damage was noted to three other farm buildings there were to the south and north of the barn.

Tornado in DAY, SOUTH DAKOTA
From 12-MAY-22 17:13:00 to 12-MAY-22 17:14:00 (CST-6)
Location: WEBSTER MUNI ARPT
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A tornado 7 miles to the south-southeast of Webster hit an
outbuilding, pulling the roof off and knocking over the interior
wall. The debris from the building was carried to the northwest
for over 250 yards and spread out to the west. A calving shed was
rolled to the north and then northwest. A animal trailer was
tipped over and a metal windmill was knocked over and twisted.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 12-MAY-22 16:45:00 to 12-MAY-22 16:45:00 (CST-6)
Location: DOLAND
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in DEUEL, SOUTH DAKOTA
From 12-MAY-22 16:51:00 to 12-MAY-22 16:51:00 (CST-6)
Location: ASTORIA
Magnitude: 70.00 EG
Reported by: Trained Spotter

Trees were downed and several houses were damaged by spotter-estimated 80 mph wind gusts.

Thunderstorm Wind in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:27:00 to 12-MAY-22 17:27:00 (CST-6)
Location: ORTLEY
Magnitude: 65.00 EG
Reported by: Public

Trees were uprooted in Ortley by estimated 75 mph winds.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:24:00 to 12-MAY-22 17:24:00 (CST-6)
Location: WATERTOWN
Magnitude: 70.00 EG
Reported by: Public

One inch tree limbs were broken and shingles were blown off a roof by estimated 80 mph winds.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:00:00 to 12-MAY-22 17:00:00 (CST-6)
Location: WATERTOWN
Magnitude: 70.00 MG
Reported by: Mesonet

A trained spotter reported an 81 mph wind on his weather station.

Tornado in CLARK, SOUTH DAKOTA
From 12-MAY-22 16:45:00 to 12-MAY-22 16:45:00 (CST-6)
Location: RAYMOND
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An eyewitness observed a brief tornado touchdown while planting
a field 5 miles north and 2 miles east of Raymond, SD. No damage
occurred.

Thunderstorm Wind in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:56:00 to 12-MAY-22 17:56:00 (CST-6)
Location: SISSETON ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Thunderstorm Wind in MARSHALL, SOUTH DAKOTA
From 12-MAY-22 17:45:00 to 12-MAY-22 17:45:00 (CST-6)
Location: LANGFORD
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Tornado in GRANT, SOUTH DAKOTA
From 12-MAY-22 17:15:00 to 12-MAY-22 17:16:00 (CST-6)
Location: ALBEE
Tornado F-scale: EF1
Reported by: NWS Storm Survey

The southwest half of a machine shed shop was completely
destroyed. The north side remained upright and on the foundation,
however garage doors and entry doors no longer close properly due
to a counter clockwise twisting of the frame. 2x12 rafters from
the machine shed were launched through the walls of a nearby shed.
Another shed on the property also lost one third of its roof.
Debris from the buildings was spread to the northeast with large
pieces of wood pierced vertically into the ground along the track.
Debris was tossed northeast between one quarter and one half mile
from the farm.

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:09:00 to 12-MAY-22 17:09:00 (CST-6)
Location: (ATY)WATERTOWN ARPT
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large trees were downed by severe winds. The nearby Watertown Airport weather station reported a peak wind of 76 mph.

Tornado in DEUEL, SOUTH DAKOTA
From 12-MAY-22 16:59:00 to 12-MAY-22 17:03:00 (CST-6)
Location: GARY
Tornado F-scale: EF1
Reported by: NWS Storm Survey

A residence 2 miles northwest of Gary, SD had a barn roof damaged and a horse trailer rolled multiple times. A second residence, about 3 miles northwest of Gary, had a track of damage through their farm yard. An ash tree snapped at the trunk and fell on to the corner of the house. A single stall garage, which was bolted to the foundation, was lifted off the foundation and overturned. The vehicle in the garage was not damaged. A second garage to the north lost two thirds of its roof panels. Another machine shed
had a portion of the south wall pushed in. All debris from buildings was lofted to the northeast. A mostly empty grain bin was also ripped from the foundation and tossed across 485th Ave and into the neighboring field, coming to rest about 200 yards to
the northeast. Residents were without commercial power for two days.

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:15:00 to 12-MAY-22 17:15:00 (CST-6)
Location: WEBSTER MUNI ARPT
Magnitude: 70.00 EG
Reported by: Public

A barn was destroyed by estimated 80 mph wind gusts.

Tornado in HAMLIN, SOUTH DAKOTA
From 12-MAY-22 16:45:00 to 12-MAY-22 16:49:00 (CST-6)
Location: CASTLEWOOD
Tornado F-scale: EF2
Reported by: NWS Storm Survey

Several eyewitnesses reported a small funnel/tornado descending, widening and developing very rapidly at the edge of Castlewood, SD. Damage was evident as soon as it reached the southern edge of town. A majority of the damage occurred between 3rd Avenue and 4th Avenue. On Market Street, a small funeral home visitation center was completely blown off its foundation. Debris from the funeral home was tossed to the north, including the air conditioning unit which was tossed into a yard one block to the north. A garage was destroyed and completely blown from its foundation on Allen Street. The next block to the north, a home lost a roof and sustained significant damage to external walls. Another garage on this street was completely blown off the foundation and destroyed. Similar damage was noted a block north on Main Street. Another home lost an entire roof and partial collapse of external walls. Yet another garage was destroyed as it slid off the foundation. The next block north, on Alice Street, significant roof damage was noted to several homes and another garage was completely shifted off of the foundation. One particular residence had a roof that appeared to be slightly rotated and was sagging. The Castlewood Elementary school, situated between Harry Street and Pear Street, sustained significant damage to the school and gymnasium roof. Damage was also sustained to sections of the brick external walls. The school bus shed was completely destroyed with loss of
the roof and external walls. North of the school, on Prairie Street, a residence sustained significant damage. At this property, a garage was completely destroyed, and a shed was tossed in the air landing upside down. The home itself lost the entire roof and the
south facing external walls collapsed. The tornado would continue to track north across an open field and across US Highway 22. Additional debris and tree damage was noted a mile north of US Highway 22 before the tornado lifted. Throughout the entire path of the tornado there were uprooted and snapped trees and significant siding and roof damage to homes.

Hail in CLARK, SOUTH DAKOTA
From 12-MAY-22 16:22:00 to 12-MAY-22 16:22:00 (CST-6)
Location: WILLOW LAKE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in DEUEL, SOUTH DAKOTA
From 12-MAY-22 16:39:00 to 12-MAY-22 16:40:00 (CST-6)
Location: JOHNSONVILLE
Tornado F-scale: EF2
Reported by: NWS Storm Survey

A large dairy barn lost a roof, a camper was tipped over and
several outbuildings sustained damage.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 12-MAY-22 17:09:00 to 12-MAY-22 17:09:00 (CST-6)
Location: TURTON
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:13:00 to 12-MAY-22 17:13:00 (CST-6)
Location: SOUTH SHORE
Magnitude: 64.00 MG
Reported by: Mesonet

Thunderstorm Wind in HAMLIN, SOUTH DAKOTA
From 12-MAY-22 16:50:00 to 12-MAY-22 16:50:00 (CST-6)
Location: ESTELLINE MUNI ARPT
Magnitude: 70.00 EG
Reported by: Law Enforcement

Reported by law enforcement and trained spotters, estimated 80 mph wind gusts damaged several buildings and trees.

Thunderstorm Wind in MARSHALL, SOUTH DAKOTA
From 12-MAY-22 17:52:00 to 12-MAY-22 17:52:00 (CST-6)
Location: LAKE CITY
Magnitude: 59.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:11:00 to 12-MAY-22 17:11:00 (CST-6)
Location: APPLEBY
Magnitude: 70.00 EG
Reported by: Trained Spotter

One inch tree limbs were broken and shingles were blow off of a home. A nearby spotter measured an 81 mph gust.

Thunderstorm Wind in CLARK, SOUTH DAKOTA
From 12-MAY-22 17:14:00 to 12-MAY-22 17:14:00 (CST-6)
Location: BRADLEY
Magnitude: 50.00 MG
Reported by: Mesonet

Thunderstorm Wind in BROWN, SOUTH DAKOTA
From 12-MAY-22 17:40:00 to 12-MAY-22 17:40:00 (CST-6)
Location: GROTON
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in ROBERTS, SOUTH DAKOTA
From 12-MAY-22 17:28:00 to 12-MAY-22 17:28:00 (CST-6)
Location: CORONA
Magnitude: 60.00 MG
Reported by: Public

Thunderstorm Wind in CODINGTON, SOUTH DAKOTA
From 12-MAY-22 17:11:00 to 12-MAY-22 17:11:00 (CST-6)
Location: WATERTOWN
Magnitude: 65.00 MG
Reported by: Emergency Manager

Buildings were damaged by severe winds. The ASOS at the Watertown airport reported a peak wind of 76 mph.

Thunderstorm Wind in DAY, SOUTH DAKOTA
From 12-MAY-22 17:31:00 to 12-MAY-22 17:31:00 (CST-6)
Location: WAUBAY
Magnitude: 57.00 MG
Reported by: Mesonet

Thunderstorm Wind in DEUEL, SOUTH DAKOTA
From 12-MAY-22 17:07:00 to 12-MAY-22 17:07:00 (CST-6)
Location: GARY
Magnitude: 61.00 EG
Reported by: Trained Spotter

Estimated 70 mph winds damaged trees.

Thunderstorm Wind in SPINK, SOUTH DAKOTA
From 12-MAY-22 16:51:00 to 12-MAY-22 16:51:00 (CST-6)
Location: SPINK COLONY
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet