TornadoLookup

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Day County, South Dakota

Tornadoes, hail, floods and severe storms recorded here between 1953 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.

33
Tornado reports
207
Hail reports
39
Floods since 1996
747
All events
1
Deaths
$5.7M
Property damage

Tornado paths in Day County

The part of each tornado’s path NOAA recorded in this county, 33 in all. Zoom in and the paths widen to their surveyed width.

EF0EF1EF2EF3EF4EF5Unrated

Year by year

19532026
Hover or tap a bar to see that year.
All storm eventsTornadoes

NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.

Most significant events

The strongest tornadoes, deadliest events and biggest damage here, up to 50.

December 23, 2020 · Day, South Dakota
Blizzard Blizzard1 death
A woman driving to work from her home in rural Amherst to Bristol became disoriented in the blizzard and drove into a slough and died. She was recovered over a month later on January 29th.
July 31, 2008 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind10 injuries
The lumber yard and cabinet shop in Webster were destroyed. Power lines and poles were downed along with hundreds of trees. A semi was overturned on Highway 12 west of Webster injuring the driver. Several other injuries occurred in Day County as a result of the windstorm. The inj…
May 11, 1998 · Day, South Dakota
Flood Flood$1.9M damage
June 19, 1979 · Day, South Dakota
Tornado F1 Tornado$2.5M damage
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
The Emergency Manager in Webster reported several branches down due to thunderstorm winds estimated at about 60 mph.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
Day county Emergency Management reported powerlines down in the town of Bristol. The South Dakota Department of Transportation mesonet station near Bristol recorded a peak wind gust of 56 mph.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
An employee for the South Dakota Department of Transportation reported numerous trees down due to thunderstorm winds around the town of Andover. A National Weather Service storm survey concluded thunderstorm winds peaked at about 76 mph on the southeast side of town.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
Damage to several metal buildings was observed at the Andover Threshing Grounds. Two shops had their doors blown in with roofs partly blown out. One building had a window also blown out. A set of bleachers had also been knocked over. Thunderstorm winds were estimated at 95 mph.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
Multiple trees damaged and/or knocked down along a mature windbreak south of the town of Andover. Thunderstorm wind speeds estimated at 74 mph.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
A National Weather Service storm survey investigation of multiple trees downed along wind breaks south of Andover determined damage was from straight-line thunderstorm wind speed estimated at 74 mph.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
During a National Weather Service storm survey it was determined that straight-line thunderstorm winds gusts estimated at 65 mph dented grain bins and tipped over a trailer at a residence.
June 29, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
Widespread thunderstorm wind damage along a tree row. The length of the damage extended for almost a mile, with straight-line thunderstorm wind gusts estimated at 100 mph.
June 29, 2026 · Day, South Dakota
Tornado EFU Tornado
A tornado briefly touched down in an open field.
June 15, 2026 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
April 8, 2026 · Day, South Dakota
High Wind High Wind
April 3, 2026 · Day, South Dakota
Heavy Snow Heavy Snow
March 28, 2026 · Day, South Dakota
High Wind High Wind
March 12, 2026 · Day, South Dakota
High Wind High Wind
February 28, 2026 · Day, South Dakota
Heavy Snow Heavy Snow
A member of the public measured 8.3 inches of snowfall and posted photos to the office Facebook page.
February 18, 2026 · Day, South Dakota
Blizzard Blizzard
The South Dakota Department of Transportation (SDDOT) mesonet station webcam in Andover indicated visibility between 0.25 and 0.5 miles starting at 722 am. Winds during that timeframe gusted consistently between 35 and 45 mph. The SDDOT mesonet station 1 miles east southeast of B…
January 23, 2026 · Day, South Dakota
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
January 18, 2026 · Day, South Dakota
Blizzard Blizzard
The Day County Sheriff reported blizzard conditions and advised against travel. The South Dakota Department of Transportation mesonet station in Andover recorded a peak gust of 43 mph.
January 16, 2026 · Day, South Dakota
Winter Weather Winter Weather
Day county Sheriff issued No Travel Advised for Day county with the visibility near zero at times thanks to the combination of snow showers and strong winds. The South Dakota Department of Transportation mesonet stations across the county recorded wind gusts generally between 35 …
December 28, 2025 · Day, South Dakota
Winter Weather Winter Weather
The Day County Sheriff issued No Travel Advised for the county due to snow showers and high winds reducing visibility on the roadways. These conditions resulted in a semi stuck in snow on Highway 12. Winds at the South Dakota State University mesonet weather station in Webster re…
December 18, 2025 · Day, South Dakota
High Wind High Wind
A power outage reported in Day county started at 4 am, and continued through approximately 3 pm. Winds at the time of the outage were between 40 and 50 mph based off regional mesonets, with a peak wind gust of 58 mph measured by the South Dakota Department of Transportation meson…
December 18, 2025 · Day, South Dakota
Blizzard Blizzard
No Travel Advised was issued for Day county thanks to a combination of winds around 60 mph and snow showers leading to localized blizzard conditions.
December 9, 2025 · Day, South Dakota
High Wind High Wind
November 25, 2025 · Day, South Dakota
Blizzard Blizzard
Day County officials issued a No Travel Advised statement due to blizzard conditions. Multiple vehicles were reported in the ditch east of Webster, where 6 inches of snow was recorded. The AWOS in Webster recorded visibility at 1/4 mile or less from 10:00 am through 4:00 pm befor…
October 26, 2025 · Day, South Dakota
High Wind High Wind
August 17, 2025 · Day, South Dakota
Flood Flood
The Marshall County Emergency Manager reported flooding on multiple roads located south of Langford in Day county. Flooding was also reported along the creek located near the Back Forty Beef Farm, 5 miles southeast of Pierpont.
August 14, 2025 · Day, South Dakota
Hail Hail
Hail up to ping pong ball size along with wind caused significant crop damage, stripped leaves from trees, and damaged shingles.
August 14, 2025 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
The caller stated that winds, estimated at 60 mph, with nickel size hail, caused damage to crops.
August 14, 2025 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
The Fire Department in Roslyn reported numerous trees down in town.
August 14, 2025 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
A trained spotter reported thunderstorm winds damaged the awning on a camper trailer.
August 13, 2025 · Day, South Dakota
Thunderstorm Wind Thunderstorm Wind
August 13, 2025 · Day, South Dakota
Flood Flood
Heavy rain caused water to run over South Dakota Highway 27 one mile south of Pierpont. Water was also reported over 422nd ave, 3 miles east of Pierpont, where a vehicle hydroplaned into the ditch. One of the rural county roads 5 miles southeast of Pierpont was partly washed out.…
August 5, 2025 · Day, South Dakota
Hail Hail
August 5, 2025 · Day, South Dakota
Hail Hail
August 5, 2025 · Day, South Dakota
Funnel Cloud Funnel Cloud
July 28, 2025 · Day, South Dakota
Hail Hail
June 26, 2025 · Day, South Dakota
Flood Flood
The Day county Emergency Manager sent photos of flooding of fields, ditches and with water over a portion of 148th st.
June 20, 2025 · Day, South Dakota
Excessive Heat Excessive Heat
June 16, 2025 · Day, South Dakota
Hail Hail
June 16, 2025 · Day, South Dakota
Hail Hail
A trained spotter reports hail to the size of half-dollars. Their vehicles received numerous dents, along with a broken windshield.
May 15, 2025 · Day, South Dakota
High Wind High Wind
April 1, 2025 · Day, South Dakota
Winter Storm Winter Storm
Day county sheriff posted a photo of a vehicle in an open body of water after it slid off the roadway, and a photo of a jackknifed semi in the ditch along highway 12 during the evening of April 1st. The CoCoRaHS observer 2 miles southeast of Roslyn would report 4.2 inches on the …
April 1, 2025 · Day, South Dakota
Drought Drought
March 25, 2025 · Day, South Dakota
Drought Drought
March 15, 2025 · Day, South Dakota
High Wind High Wind
Events by year, as a table
YearEventsTornadoes
2026201
2025290
2024180
2023200
2022351
2021312
2020230
2019273
2018200
2017231
2016282
2015231
2014180
2013300
2012110
2011230
2010180
2009231
2008260
2007170
2006280
2005240
200460
2003170
2002130
2001140
2000150
1999110
1998161
1997292
1996335
199590
199481
199251
199190
199030
198920
198830
198720
198630
198511
198210
198160
198071
197921
197710
197510
197321
197111
197010
196910
196711
196611
196432
196310
196210
196110
195411
195311