Oglala Lakota County, South Dakota tornadoes

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24confirmed tornadoes since NOAA records began in 1950 (the first here in 1956). Most recent: July 29, 2018, 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 Oglala Lakota County

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The record

At a glance

Total241950 to 2025
Per year0.3average since 1950
Peak monthJune13 of 24
StrongestF3Aug 6, 1956
Deaths1whole paths, see note
Injuries56whole paths, see note

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

Seasons

When tornadoes hit here

By month

130 Jan: 0Feb: 0Mar: 0Apr: 0May: 0Jun: 13Jul: 6Aug: 5Sep: 0Oct: 0Nov: 0Dec: 0JanFebMarAprMayJunJulAugSepOctNovDec

June is the peak month, with 13 of 24 tornadoes.

By time of day

50 12 AM: 1: 0: 03 AM: 0: 0: 56 AM: 0: 0: 09 AM: 0: 0: 012 PM: 0: 0: 23 PM: 4: 0: 16 PM: 4: 4: 19 PM: 1: 0: 112 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

By year, 1950 to 2025

50 1950: 0: 0: 0: 0: 0: 0: 1: 0: 0: 01960: 0: 0: 0: 0: 0: 0: 0: 0: 0: 11970: 0: 0: 1: 0: 0: 0: 0: 0: 0: 01980: 1: 1: 0: 0: 1: 0: 0: 0: 0: 01990: 0: 0: 0: 2: 2: 0: 0: 0: 0: 52000: 0: 1: 0: 0: 4: 0: 1: 1: 0: 02010: 0: 0: 0: 0: 0: 0: 1: 0: 1: 02020: 0: 0: 0: 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
16
EF1
5
EF2
2
EF3
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

Deadliest

F2, June 4, 1999

1 deaths, 54 injuries Strongest

F3, August 6, 1956

28.3 mile path Longest path

28.3 miles, F3

August 6, 1956, whole path Widest

400 yards, F2

June 4, 1999
Every tornado

All 24 tornadoes, newest first

DateRatingPath lengthWidthDeathsInjuries
Jul 29, 2018EF00.04 mi10 yd00
Jul 16, 2016EF00.1 mi20 yd00
Jun 6, 2007EF17.16 mi400 yd00
Jun 10, 2006F00.1 mi10 yd00
Aug 6, 2004F00.1 mi10 yd00
Aug 6, 2004F00.1 mi10 yd00
Aug 6, 2004F10.2 mi20 yd00
Aug 6, 2004F00.1 mi10 yd00
Jun 12, 2001F01 mi25 yd00
Jun 5, 1999F00.5 mi10 yd00
Jun 4, 1999F014 min/a00
Jun 4, 1999F01 mi50 yd00
Jun 4, 1999F24 mi400 yd00
Jun 4, 1999F215 min/a154
Jun 6, 1994F00.1 mi10 yd00
Jun 6, 1994F00.1 mi10 yd00
Jul 3, 1993F02 mi23 yd00
Jun 22, 1993F00.1 mi13 yd00
Jun 21, 1984F10.1 mi10 yd02
Jul 22, 1981F00.1 mi10 yd00
Jun 15, 1980F00.1 mi10 yd00
Jul 21, 1972F10.1 mi10 yd00
Jul 16, 1969F11 mi10 yd00
Aug 6, 1956F328.3 mi100 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.