Tornado History Map

Corson County, South Dakota tornado history

27 tornadoes recorded in or across Corson County from 1953 to 2025, coloured by rating on the map.

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Years1950 to 2025
Rating (F or EF scale)

Shows tornadoes that started in, or crossed, the chosen state. To see how many have passed near you, search a town or ZIP code, or tap the map.

Key
  • F0 / EF0 Light damage
  • F1 / EF1 Moderate damage
  • F2 / EF2 Considerable damage
  • F3 / EF3 Severe damage
  • F4 / EF4 Devastating damage
  • F5 / EF5 Incredible damage
  • Unknown Not rated (2007 onwards)

How to read the lines. Each line is one tornado, drawn from where it started to where it ended, coloured and sized by its rating. A dot means the record has no end point. Tap a line for its details, or tap anywhere else to see how many tornadoes have passed nearby. Weaker tornadoes appear as you zoom in. Ratings use the Fujita (F) scale before 1 February 2007 and the Enhanced Fujita (EF) scale from then on.

Tornadoes in Corson County

The Storm Prediction Center records 27 tornadoes whose paths touched Corson County, South Dakota between 1953 and 2025. None of them is recorded as having killed anyone. The busiest month is June, with 11 tornadoes. The strongest was an F2 on 29 May 1953. The most recent was on 14 September 2025.

  • 27tornadoes
  • 0deaths
  • 4injuries
  • 109per 10,000 sq mi of land

A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.

How strong were the tornadoes in Corson County?

RatingTornadoesShare
F0 / EF02489%
F1 / EF100%
F2 / EF227%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating14%

Corson County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 6 in 1970s.1950s31960s31970s61980s51990s42000s22010s22020s2

The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s3
1960s3
1970s6
1980s5
1990s4
2000s2
2010s2
2020s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 11 in Jun.Jan0Feb0Mar0Apr2May4Jun11Jul4Aug5Sep1Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr2
May4
Jun11
Jul4
Aug5
Sep1
Oct0
Nov0
Dec0

Records for Corson County

  • Strongest: South Dakota tornado29 May 1953, F2, 2 injuries, 0.5 miles long
  • Longest path: South Dakota tornado19 April 1955, F0, 2 injuries, 7.2 miles long
  • Most recent: South Dakota tornado14 September 2025, Unknown rating, 0 miles long

Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.

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