Tornado History Map

Mellette County, South Dakota tornado history

11 tornadoes recorded in or across Mellette County from 1969 to 2000, 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 Mellette County

The Storm Prediction Center records 11 tornadoes whose paths touched Mellette County, South Dakota between 1969 and 2000. None of them is recorded as having killed anyone. The busiest month is July, with 6 tornadoes. The strongest was an F2 on 4 June 1971. The most recent was on 24 July 2000.

  • 11tornadoes
  • 0deaths
  • 0injuries
  • 84per 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 Mellette County?

RatingTornadoesShare
F0 / EF0873%
F1 / EF1218%
F2 / EF219%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Mellette County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 3 in 1970s.1960s11970s31980s21990s32000s2

The 2000s only run to 2000, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1960s1
1970s3
1980s2
1990s3
2000s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 6 in Jul.Jan0Feb0Mar0Apr0May2Jun2Jul6Aug0Sep1Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr0
May2
Jun2
Jul6
Aug0
Sep1
Oct0
Nov0
Dec0

Records for Mellette County

  • Strongest: South Dakota tornado4 June 1971, F2, 0.3 miles long
  • Longest path: South Dakota tornado24 September 1986, F0, 1.5 miles long
  • Most recent: South Dakota tornado24 July 2000, F0, 1 mile 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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