Brown County, South Dakota tornadoes

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86confirmed tornadoes since NOAA records began in 1950 (the first here in 1955). Most recent: July 13, 2025, EF0. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

Fromto

Tornado paths, 1950 to 2025

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(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5Unrated

Each path is a straight line from where the tornado started to where it ended, which is all most NOAA records hold. Tap a path for its details.

Recent warnings

Recent warnings in Brown County

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The record

At a glance

Total861950 to 2025

Per year1.1average since 1950

Peak monthJune40 of 86

StrongestF4Jun 23, 2002

Deaths3whole paths, see note

Injuries35whole paths, see note

Deaths and injuries are NOAA's totals for each tornado's whole path, which can extend beyond Brown County.

Seasons

When tornadoes hit here

By month

June is the peak month, with 40 of 86 tornadoes.

By time of day

Most often around 5:00 PM. Times as recorded by NOAA, mostly Central Standard Time.

By year, 1950 to 2025

The line is the five-year average. Tornadoes before about 1953 were under-reported, and better radar since the 1990s finds more weak ones.

By rating

EF0

EF1

EF2

EF3

EF4

Ratings before February 2007 use the original F scale; the numbers line up with today's EF scale. Unknown means NOAA could not assign a rating.

The record

Notable tornadoes

Deadliest

All 86 tornadoes, newest first

Tornadoes, newest first
Date	Rating	Path length	Width	Deaths	Injuries
Jul 13, 2025	EF0	0.1 mi	10 yd	0	0
May 7, 2022	EF0	0.01 mi	10 yd	0	0
May 7, 2022	EF0	0.01 mi	10 yd	0	0
May 7, 2022	EF0	0.01 mi	10 yd	0	0
Jun 7, 2020	EF0	5.35 mi	50 yd	0	0
Jun 13, 2017	EF0	0.1 mi	10 yd	0	0
Jun 1, 2012	EF0	0.48 mi	10 yd	0	0
May 22, 2010	EF2	1.29 mi	100 yd	0	0
May 22, 2010	EF2	18.64 mi	200 yd	0	0
Aug 14, 2008	EF0	0.15 mi	10 yd	0	0
Jul 15, 2007	EF0	0.1 mi	10 yd	0	0
Jun 26, 2005	F0	0.2 mi	10 yd	0	0
Jun 7, 2005	F1	0.1 mi	30 yd	0	0
Jun 7, 2005	F1	0.1 mi	30 yd	0	0
Jun 7, 2005	F0	0.1 mi	20 yd	0	0
May 8, 2005	F0	0.1 mi	25 yd	0	0
May 29, 2004	F0	0.3 mi	30 yd	0	0
May 29, 2004	F0	0.1 mi	10 yd	0	0
Jun 23, 2002	F0	n/a	50 yd	0	0
Jun 23, 2002	F4	9 mi	900 yd	0	0
Jun 23, 2002	F3	10 mi	900 yd	0	0
Jun 23, 2002	F0	0.3 mi	50 yd	0	0
Jun 23, 2002	F1	5 mi	500 yd	0	0
Jul 11, 2000	F0	0.1 mi	10 yd	0	0
Jul 27, 1999	F0	0.5 mi	10 yd	0	0
Jun 26, 1998	F0	0.2 mi	30 yd	0	0
Jul 17, 1996	F0	0.3 mi	10 yd	0	0
May 31, 1996	F0	0.3 mi	10 yd	0	0
May 31, 1996	F0	0.3 mi	10 yd	0	0
May 31, 1996	F3	32 mi	400 yd	0	1
May 31, 1996	F0	0.5 mi	15 yd	0	0
May 31, 1996	F1	1 mi	50 yd	0	0
May 31, 1996	F0	0.3 mi	15 yd	0	0
Jul 16, 1995	F0	0.1 mi	10 yd	0	0
Jul 18, 1994	F0	0.1 mi	10 yd	0	0
Jun 22, 1993	F0	0.5 mi	30 yd	0	0
Jun 1, 1990	F0	3 mi	30 yd	0	0
Jun 1, 1990	F0	0.3 mi	20 yd	0	0
Aug 15, 1987	F1	5 mi	50 yd	0	0
Jul 17, 1986	F0	0.1 mi	23 yd	0	0
Aug 22, 1985	F0	0.2 mi	10 yd	0	0
Jul 17, 1985	F0	0.2 mi	10 yd	0	0
May 8, 1985	F0	0.1 mi	10 yd	0	0
Aug 26, 1984	F0	0.1 mi	10 yd	0	0
Aug 19, 1984	F1	0.1 mi	10 yd	0	0
Jul 2, 1984	F0	0.1 mi	10 yd	0	0
Jun 11, 1982	F0	0.1 mi	10 yd	0	0
Jun 21, 1981	F0	0.1 mi	10 yd	0	0
Aug 20, 1980	F0	0.1 mi	33 yd	0	0
May 29, 1980	F0	0.1 mi	10 yd	0	0
May 29, 1980	F0	0.1 mi	10 yd	0	0
May 29, 1980	F0	0.1 mi	10 yd	0	0
May 29, 1980	F0	0.1 mi	10 yd	0	0
May 29, 1980	F0	0.1 mi	10 yd	0	0
May 29, 1980	F0	0.1 mi	10 yd	0	0
Jun 19, 1979	F1	0.1 mi	10 yd	0	0
Jun 15, 1978	F2	0.1 mi	10 yd	0	15
Jul 10, 1977	F0	0.1 mi	10 yd	0	0
Jun 22, 1977	F0	0.6 mi	13 yd	0	0
Jun 20, 1975	F1	2.5 mi	20 yd	0	0
Jun 20, 1975	F0	0.1 mi	10 yd	0	0
Jun 19, 1975	F0	0.1 mi	10 yd	0	0
Jun 10, 1974	F0	15 mi	100 yd	0	0
Aug 31, 1973	F0	1.7 mi	50 yd	0	0
Jul 1, 1973	F3	0.3 mi	30 yd	1	3
Jun 17, 1973	F1	0.1 mi	10 yd	0	0
Jun 15, 1973	F1	1 mi	13 yd	0	0
Jul 25, 1972	F0	0.1 mi	10 yd	0	0
Jul 19, 1972	F0	0.1 mi	10 yd	0	0
Jul 5, 1971	F0	0.1 mi	10 yd	0	0
Jun 16, 1970	F0	0.1 mi	10 yd	0	0
Jun 15, 1970	F0	0.1 mi	10 yd	0	0
Jun 25, 1969	F0	0.1 mi	10 yd	0	0
Jun 25, 1969	F3	1.5 mi	133 yd	0	6
Jul 31, 1966	F2	2.3 mi	253 yd	1	3
Jun 24, 1966	F1	5.9 mi	10 yd	0	0
May 20, 1965	F3	3.8 mi	400 yd	0	0
Jun 28, 1961	F2	49.7 mi	10 yd	0	0
Jun 21, 1961	F3	156.3 mi	10 yd	1	7
Jun 26, 1960	F0	0.1 mi	10 yd	0	0
Jun 16, 1959	F0	0.1 mi	10 yd	0	0
Jun 13, 1957	F0	0.1 mi	10 yd	0	0
Jun 13, 1957	F0	0.1 mi	10 yd	0	0
Jun 12, 1957	F0	0.1 mi	10 yd	0	0
Jun 28, 1955	F2	5.4 mi	50 yd	0	0
Apr 19, 1955	F2	4.6 mi	50 yd	0	0

Nearby

Nearby counties

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Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025, and SPC preliminary reports for 2026. Page built October 13, 2026.