Tornadoes in Wyoming

1. F0 / EF040 to 72 mph on the F scale, 65 to 85 mph on the EF scale

   Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

2. F1 / EF173 to 112 mph on the F scale, 86 to 110 mph on the EF scale

   Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

3. F2 / EF2113 to 157 mph on the F scale, 111 to 135 mph on the EF scale

   Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

4. F3 / EF3158 to 206 mph on the F scale, 136 to 165 mph on the EF scale

   Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

5. F4 / EF4207 to 260 mph on the F scale, 166 to 200 mph on the EF scale

   Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

6. F5 / EF5261 to 318 mph on the F scale, over 200 mph on the EF scale

   Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

7. Unrated

   The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

1. F2, Campbell County, WyomingAugust 12, 20052 killed, 13 injured
2. F3, Laramie County, WyomingJuly 16, 19791 killed, 40 injured
3. F2, Big Horn County, WyomingJune 26, 19591 killed, 1 injured

1. F4, Teton County, WyomingJuly 21, 1987F4, 24.3 mi (39 km)
2. F3, Lawrence and Crook counties, Wyoming and South DakotaJuly 12, 1965F3, 20.8 mi (33 km)
3. F3, Laramie County, WyomingApril 23, 1960F3, 17.2 mi (28 km)
4. F3, Campbell County, WyomingMay 23, 1978F3, 14.5 mi (23 km)
5. F3, Crook County, WyomingJune 25, 1975F3, 11.5 mi (19 km)
6. EF3, Albany County, WyomingJune 6, 2018EF3, 11.3 mi (18 km)
7. F3, Laramie County, WyomingJuly 16, 1979F3, 8.8 mi (14 km)
8. EF3, Converse County, WyomingJuly 28, 2018EF3, 4.4 mi (7 km)
9. EF3, Campbell County, WyomingJune 1, 2018EF3, 3.8 mi (6 km)
10. F3, Lawrence and Crook counties, Wyoming and South DakotaJune 29, 1993F3, 3.0 mi (5 km)
11. F3, Platte County, WyomingJune 27, 1955F3, 2.0 mi (3 km)
12. F3, Goshen County, WyomingJune 26, 1955F3, 2.0 mi (3 km)

1. F2, Natrona, Converse and Campbell counties, WyomingJune 11, 196252.0 mi (84 km)
2. F2, Weston County, WyomingMay 28, 195338.2 mi (61 km)
3. F1, Laramie, Platte and Goshen counties, WyomingJune 8, 197130.2 mi (49 km)
4. F1, Campbell and Weston counties, WyomingJune 12, 200127.0 mi (43 km)
5. EF2, Goshen and Sioux counties, Wyoming and NebraskaJune 12, 201725.6 mi (41 km)
6. EF2, Albany County, WyomingMay 22, 200825.1 mi (40 km)
7. EF1, Goshen County, WyomingMay 23, 200824.4 mi (39 km)
8. F4, Teton County, WyomingJuly 21, 198724.3 mi (39 km)
9. Unrated, Goshen County, WyomingJune 12, 201723.2 mi (37 km)
10. F3, Lawrence and Crook counties, Wyoming and South DakotaJuly 12, 196520.8 mi (33 km)
11. EF2, Platte County, WyomingJune 7, 201220.6 mi (33 km)
12. EF0, Platte County, WyomingMay 23, 200820.5 mi (33 km)

1. F2, Campbell County, WyomingAugust 12, 2005$5.0 million
2. EF2, Goshen and Sioux counties, Wyoming and NebraskaJune 12, 2017$603,000
3. EF2, Crook County, WyomingJuly 13, 2009$300,000
4. EF2, Albany County, WyomingMay 22, 2008$300,000
5. EF2, Goshen County, WyomingJune 23, 2023$100,000
6. EF1, Natrona County, WyomingJune 23, 2023$100,000
7. EF2, Crook County, WyomingJune 13, 2014$100,000
8. EF1, Washakie County, WyomingAugust 30, 2010$70,000
9. F1, Goshen County, WyomingJuly 30, 1996$70,000
10. EF0, Hot Springs County, WyomingSeptember 9, 2024$50,000
11. EF1, Campbell County, WyomingJune 1, 2018$50,000
12. EF2, Laramie County, WyomingMay 18, 2010$50,000

1. May 24, 199016tornadoes
2. June 23, 202311tornadoes
3. June 12, 20179tornadoes
4. May 18, 20109tornadoes
5. June 13, 19849tornadoes
6. June 14, 19827tornadoes
7. June 1, 20186tornadoes
8. June 20, 19776tornadoes
9. June 5, 19766tornadoes
10. June 12, 20015tornadoes
11. June 6, 19975tornadoes
12. June 5, 19825tornadoes

A tornado is counted once for every county its path crossed, so these add up to more than 749. Each county has a page of its own: every tornado that crossed it, year by year.

Warnings in force in WyomingForecast for your townThe live radar over Wyoming

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.