Edmunds County, South Dakota tornadoes

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31confirmed tornadoes since NOAA records began in 1950 (the first here in 1955). Most recent: April 23, 2022, EF0. 2026 so far: 0 preliminary reports preliminary

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Map

Every tornado path in the county

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 Edmunds County

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The record

At a glance

Total311950 to 2025
Per year0.4average since 1950
Peak monthMay11 of 31
StrongestEF4May 22, 2010
Deaths0whole paths, see note
Injuries0whole paths, see note

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

Seasons

When tornadoes hit here

By month

110 Jan: 0Feb: 0Mar: 0Apr: 3May: 11Jun: 11Jul: 4Aug: 2Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

May is the peak month, with 11 of 31 tornadoes.

By time of day

70 12 AM: 0: 0: 03 AM: 0: 0: 06 AM: 0: 0: 09 AM: 0: 2: 212 PM: 0: 1: 13 PM: 1: 1: 76 PM: 7: 5: 49 PM: 0: 0: 012 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

By year, 1950 to 2025

50 1950: 0: 0: 0: 0: 0: 2: 0: 0: 0: 01960: 1: 1: 0: 0: 0: 0: 0: 0: 0: 01970: 0: 0: 0: 1: 0: 0: 1: 0: 1: 01980: 0: 0: 0: 0: 1: 0: 1: 0: 0: 01990: 1: 2: 0: 3: 0: 1: 0: 2: 0: 02000: 0: 1: 0: 0: 2: 1: 0: 0: 0: 02010: 5: 0: 0: 0: 1: 0: 2: 0: 0: 02020: 0: 0: 1: 0: 0: 019501960197019801990200020102020

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
19
EF1
7
EF2
4
EF4
1

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

Strongest

EF4, May 22, 2010

5.7 mile path Longest path

49.7 miles, F2

June 28, 1961, whole path Widest

1,200 yards, EF4

May 22, 2010
Every tornado

All 31 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Apr 23, 2022EF00.03 mi10 yd00
May 28, 2016EF00.09 mi20 yd00
May 28, 2016EF00.06 mi20 yd00
Aug 23, 2014EF11.46 mi10 yd00
May 22, 2010EF218.64 mi200 yd00
May 22, 2010EF00.21 mi10 yd00
May 22, 2010EF00.19 mi30 yd00
May 22, 2010EF00.28 mi30 yd00
May 22, 2010EF45.7 mi1,200 yd00
Jun 26, 2005F0n/a10 yd00
May 29, 2004F01.5 mi30 yd00
May 29, 2004F01.5 mi30 yd00
Jul 18, 2001F21 mi100 yd00
Jun 22, 1997F00.1 mi23 yd00
Jun 22, 1997F00.2 mi10 yd00
May 21, 1995F00.1 mi10 yd00
Jul 3, 1993F01 mi23 yd00
Jun 22, 1993F10.5 mi50 yd00
Jun 22, 1993F10.5 mi50 yd00
Jun 20, 1991F00.7 mi50 yd00
Jun 13, 1991F19 mi10 yd00
Aug 25, 1990F00.5 mi10 yd00
Jun 6, 1986F00.1 mi13 yd00
Jul 2, 1984F00.1 mi10 yd00
Jun 6, 1978F00.1 mi10 yd00
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.