Tornado History Map

Sweetwater County, Wyoming tornado history

27 tornadoes recorded in or across Sweetwater County from 1960 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 Sweetwater County

The Storm Prediction Center records 27 tornadoes whose paths touched Sweetwater County, Wyoming between 1960 and 2025. None of them is recorded as having killed anyone. The busiest month is May, with 7 tornadoes. The strongest was an F1 on 10 July 2001. The most recent was on 1 July 2025.

  • 27tornadoes
  • 0deaths
  • 0injuries
  • 26per 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 Sweetwater County?

RatingTornadoesShare
F0 / EF02074%
F1 / EF1622%
F2 / EF200%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating14%

Sweetwater County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 6 in 1970s.1960s11970s61980s31990s62000s42010s52020s2

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

Show the numbers
PeriodCount
1960s1
1970s6
1980s3
1990s6
2000s4
2010s5
2020s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 7 in May.Jan0Feb0Mar0Apr2May7Jun6Jul5Aug4Sep3Oct0Nov0Dec0
Show the numbers
PeriodCount
Jan0
Feb0
Mar0
Apr2
May7
Jun6
Jul5
Aug4
Sep3
Oct0
Nov0
Dec0

Records for Sweetwater County

  • Strongest: Wyoming tornado10 July 2001, F1, 5 miles long
  • Longest path: Wyoming tornado26 May 2017, EF0, 11.4 miles long
  • Most recent: Wyoming tornado1 July 2025, EF0, 0.8 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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