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Brown County, South Dakota
Tornadoes, hail, floods and severe storms recorded here between 1955 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
85
Tornado reports
438
Hail reports
192
Floods since 1996
1,438
All events
10
Deaths
$11.2M
Property damage
Tornado paths in Brown County
The part of each tornado’s path NOAA recorded in this county, 83 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by 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.
Tornado F4 Tornado
Tornado F3 Tornado
Tornado F3 Tornado
Tornado F3 Tornado
Very heavy rains of 5 to nearly 10 inches fell within a 6 to 10 hour period across most of Brown county causing widespread flash flooding. Most of the cities affected included Aberdeen, Warner, Columbia, Hecla, Groton, Barnard, Bath, and Stratford. Several hundred homes, some bus…
High Wind High Wind
A personal weather station in the town of Westport recorded a peak wind gust of 88 mph associated with low pressure on the backside of the decaying thunderstorm complex.
High Wind High Wind
Locally strong winds created by low pressure in the wake of a decaying thunderstorm complex topped out at 68 mph on a personal weather station 2 miles southwest of Westport.
High Wind High Wind
Estimated winds of 60 mph resulted in several broken tree branches at the National Weather Service office at the Aberdeen Regional Airport associated with low pressure on the backside of the decaying thunderstorm complex.
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
A resident in Groton estimated 60 mph thunderstorm wind gusts knocked over a dumpster.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
The ASOS at the Aberdeen regional airport recorded a peak wind gust of 70 mph.
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
Brown county Emergency Management relayed that a large barn roof had been damage by thunderstorm winds. The ASOS at the Aberdeen Regional Airport recorded a peak wind gust of 70 mph.
Thunderstorm Wind Thunderstorm Wind
Images relayed through social media showing a tree down near the town of Columbia.
Thunderstorm Wind Thunderstorm Wind
A public report of thunderstorm wind damage to trees. The ASOS at the Aberdeen Regional Airport recorded a peak wind gust of 70 mph.
Thunderstorm Wind Thunderstorm Wind
An NWS employee reported several trees down on North Washington Street and 15th Avenue Northeast. The ASOS at the Aberdeen Regional Airport recorded a peak wind gust of 70 mph.
Thunderstorm Wind Thunderstorm Wind
The Brown County Emergency Manager reported roof damage and the door blow in at a machine shed on the north side of Aberdeen. The ASOS at the Aberdeen Regional Airport recorded a peak wind gust of 70 mph.
Thunderstorm Wind Thunderstorm Wind
The public reports that thunderstorm winds had caused trees to fall onto a home and a car on the north side of Aberdeen. The ASOS at the Aberdeen Regional Airport recorded a peak wind gust of 70 mph.
Thunderstorm Wind Thunderstorm Wind
A personal weather station in Frederick recorded a peak thunderstorm wind gust of 84 mph.
Thunderstorm Wind Thunderstorm Wind
Wind damage was reported across Frederick. Several trees were snapped, and a radio tower was reportedly blown over. The scoreboard and a storage shed were destroyed at the football field. A nearby weather station recorded a peak wind gust of 84 mph.
Thunderstorm Wind Thunderstorm Wind
A resident of Hecla shared a video of strong winds and tree damage from the storm via facebook.
High Wind High Wind
The ASOS located at the Aberdeen Regional Airport recorded a peak wind gust of 59 mph, while the South Dakota State University mesonet station 9 miles north northeast of Groton topped out at 58 mph.
High Wind High Wind
Heavy Snow Heavy Snow
A snowfall total of 12 inches was observed in Hecla, 9.7 inches was submitted by the public 4 miles east of Houghton, and the CoCoRaHS observer 2 miles south southeast of Claremont recorded 7.8 inches.
High Wind High Wind
Heavy Snow Heavy Snow
The COOP observer in Columbia measured 6 inches of snowfall.
Blizzard Blizzard
Blizzard conditions started at 434 am, with the visibility at the Aberdeen Regional Airport ASOS down to a quarter mile or less. Wind gusts were recorded between 40 and 55 mph with a peak gust of 61 mph. These strong winds were also responsible for tree damage in town, with a lar…
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
High Wind High Wind
High Wind High Wind
High Wind High Wind
High winds caused damage throughout the city of Aberdeen. A large branch fell on the south side of town, damaging a vehicle and a street light, while a downtown storefront window was shattered. Additionally, a section of fence was blown down at the residence of a National Weather…
Heavy Snow Heavy Snow
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 29 | 0 |
| 2025 | 48 | 1 |
| 2024 | 31 | 0 |
| 2023 | 38 | 0 |
| 2022 | 73 | 3 |
| 2021 | 54 | 0 |
| 2020 | 69 | 1 |
| 2019 | 44 | 0 |
| 2018 | 23 | 0 |
| 2017 | 41 | 1 |
| 2016 | 47 | 0 |
| 2015 | 51 | 0 |
| 2014 | 30 | 0 |
| 2013 | 47 | 0 |
| 2012 | 30 | 1 |
| 2011 | 47 | 0 |
| 2010 | 54 | 2 |
| 2009 | 49 | 0 |
| 2008 | 45 | 1 |
| 2007 | 34 | 1 |
| 2006 | 19 | 0 |
| 2005 | 50 | 5 |
| 2004 | 18 | 2 |
| 2003 | 17 | 0 |
| 2002 | 24 | 5 |
| 2001 | 21 | 0 |
| 2000 | 36 | 1 |
| 1999 | 22 | 1 |
| 1998 | 19 | 1 |
| 1997 | 28 | 0 |
| 1996 | 29 | 7 |
| 1995 | 5 | 1 |
| 1994 | 7 | 1 |
| 1993 | 5 | 0 |
| 1992 | 21 | 0 |
| 1991 | 23 | 0 |
| 1990 | 11 | 2 |
| 1989 | 9 | 0 |
| 1988 | 14 | 0 |
| 1987 | 11 | 1 |
| 1986 | 17 | 1 |
| 1985 | 16 | 3 |
| 1984 | 8 | 3 |
| 1983 | 10 | 0 |
| 1982 | 8 | 1 |
| 1981 | 7 | 2 |
| 1980 | 14 | 7 |
| 1979 | 2 | 1 |
| 1978 | 6 | 1 |
| 1977 | 8 | 2 |
| 1976 | 3 | 0 |
| 1975 | 3 | 3 |
| 1974 | 6 | 1 |
| 1973 | 6 | 4 |
| 1972 | 7 | 2 |
| 1971 | 2 | 1 |
| 1970 | 3 | 2 |
| 1969 | 2 | 2 |
| 1968 | 1 | 0 |
| 1967 | 5 | 0 |
| 1966 | 4 | 2 |
| 1965 | 3 | 1 |
| 1964 | 3 | 0 |
| 1963 | 2 | 0 |
| 1962 | 1 | 0 |
| 1961 | 4 | 1 |
| 1960 | 2 | 1 |
| 1959 | 2 | 1 |
| 1957 | 4 | 3 |
| 1956 | 1 | 0 |
| 1955 | 5 | 2 |
Search your address
See every tornado that passed within 25 miles of a place in Brown County, measured to its path.
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