Tornadoes · United States · Wyoming

Tornadoes in Campbell County, Wyoming

96 tornadoes have crossed Campbell County since 1950, 1 of them surveyed so far this year and still preliminary, 2nd of the 23 counties in Wyoming with a tornado on record, an average of 1.3 a year. They have killed 2 people and injured 36. None was rated F4 or above.

The rating scale

Tracks are drawn in the color of the rating. The United States rated tornadoes on Ted Fujita’s F scale until 31 January 2007 and on the Enhanced Fujita scale after it. Both run from 0 to 5, and both rate the damage rather than measure the wind: the speeds are what that damage is taken to imply.

  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.

Now

Tornadoes
96
Deaths
2
Injuries
36
F4 and above
0
Worst on record
EF3, June 1, 2018

The deadliest in Campbell County

  1. F2, Campbell County, WyomingAugust 12, 20052 killed, 13 injured

The strongest

  1. F3, Campbell County, WyomingMay 23, 1978F3, 14.5 mi (23 km)
  2. EF3, Campbell County, WyomingJune 1, 2018EF3, 3.8 mi (6 km)
  3. F2, Natrona, Converse and Campbell counties, WyomingJune 11, 1962F2, 52.0 mi (84 km)
  4. F2, Campbell County, WyomingJune 25, 1975F2, 16.3 mi (26 km)
  5. EF2, Campbell County, WyomingJune 22, 2026EF2, 12.7 mi (20 km)
  6. F2, Campbell County, WyomingJuly 30, 1975F2, 12.4 mi (20 km)
  7. F2, Campbell County, WyomingMay 27, 1959F2, 10.6 mi (17 km)
  8. EF2, Campbell County, WyomingJune 23, 2023EF2, 3.8 mi (6 km)
  9. F2, Campbell County, WyomingJuly 22, 1966F2, 3.6 mi (6 km)
  10. F2, Campbell County, WyomingJune 12, 1953F2, 2.0 mi (3 km)

Every year with a tornado

The 41 years of the 76 in the record with a tornado in Campbell County. Each year links to every tornado in Wyoming that year.

YearTornadoesDeathsInjuriesStrongest
20261EF2
202318EF2
20191EF0
201842EF3
20161EF1
20151EF0
20141EF0
20101EF0
20092EF0
20084EF0
20074EF1
20052213F2
20041F0
20032F0
20015F1
19995F0
19961F0
19952F0
19932F1
19923F0
19903F1
198852F2
19871F0
19831F1
19822F1
19799F1
19783F3
19771F1
19768F1
197531F2
19732F1
19721F1
19691F0
19681F0
19671F1
196626F2
196234F2
19591F2
19582F1
19561F1
19531F2

Every tornado that crossed Campbell County

96 tornadoes, newest first. The 1 at the top is this year's, from the surveying office rather than SPC's published database, and its rating is marked as preliminary.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 22, 20262:31 PM MDTEF2Campbell12.7600
June 23, 20235:49 PM MDTEF2Campbell3.88008
July 16, 20197:34 PM MDTEF0Campbell1.210
June 1, 20181:59 PM MDTEF1Campbell4.650
June 1, 20181:55 PM MDTEF1Campbell0.525$50,000
June 1, 20181:41 PM MDTEF3Campbell3.82002
June 1, 20181:34 PM MDTEF0Campbell1.025
August 7, 20167:55 PM MDTEF1Campbell1.5365
June 3, 20157:20 PM MDTEF0Campbell0.010
June 26, 20144:55 PM MDTEF0Campbell0.330$10,000
August 3, 201011:02 AM MDTEF0Campbell0.110$1,000
July 27, 20095:25 PM MDTEF0Campbell0.5100$2,000
June 30, 20093:00 PM MDTEF0Campbell0.010
September 1, 20084:24 PM MDTEF0Campbell0.120
June 20, 20085:05 PM MDTEF0Campbell0.010
June 2, 20083:20 PM MDTEF0Campbell0.350$10,000
June 1, 20085:40 PM MDTEF0Campbell0.010
June 6, 20072:54 PM MDTEF0Campbell0.510
June 6, 20072:35 PM MDTEF0Campbell3.730
May 28, 20074:47 PM MDTEF0Campbell0.110
May 20, 20077:12 PM MDTEF1Campbell2.010
August 12, 20054:40 PM MDTF2Campbell1.5450213$5.0 million
June 7, 20054:34 PM MDTF1Campbell4.030
July 13, 20047:43 PM MDTF0Campbell0.110
June 21, 20032:25 PM MDTF0Campbell1.010
June 21, 20031:50 PM MDTF0Campbell0.510
July 26, 20014:40 PM MDTF0Campbell1.020
July 26, 20014:30 PM MDTF0Campbell1.020
June 12, 20011:50 PM MDTF1Campbell27.025
June 12, 20011:30 PM MDTF0Campbell9.025
June 12, 20011:27 PM MDTF0Campbell2.025
June 17, 19997:30 PM MDTF0Campbell0.110
June 17, 19996:12 PM MDTF0Campbell1.050
June 12, 19995:20 PM MDTF0Campbell1.030
June 12, 19994:15 PM MDTF0Converse16.30
June 12, 19993:45 PM MDTF0Campbell12.0400
June 22, 19964:15 PM MDTF0Campbell0.120
June 22, 19954:50 PM MDTF0Campbell7.010
June 22, 19954:05 PM MDTF0Campbell0.210
August 19, 19935:20 PM MDTF1Campbell0.550$50,000 to $500,000
July 21, 19933:30 PM MDTF0Campbell0.110
July 23, 19928:26 PM MDTF0Campbell0.120
July 23, 19928:26 PM MDTF0Campbell0.120
July 23, 19928:03 PM MDTF0Campbell0.120
May 24, 19906:36 PM MDTF0Campbell1.050$500 to $5,000
May 24, 19905:50 PM MDTF0Campbell0.540
May 24, 19905:35 PM MDTF1Campbell2.0100$500 to $5,000
July 17, 19887:15 PM MDTF0Campbell0.550
July 17, 19887:15 PM MDTF0Campbell0.550
July 17, 19887:15 PM MDTF0Campbell0.550
May 6, 19883:47 PM MDTF2Campbell1.5502$500,000 to $5 million
May 6, 19883:36 PM MDTF1Campbell0.520
May 18, 19875:30 PM MDTF0Campbell0.110
July 17, 19831:30 AM MDTF1Campbell1.570$5,000 to $50,000
June 14, 19822:30 PM MDTF1Campbell10.0167$50 to $500
June 14, 19822:00 PM MDTF0Campbell0.110under $50
July 28, 19799:50 PM MDTF0Campbell1.050
July 28, 19799:50 PM MDTF0Campbell1.050
July 26, 19798:00 PM MDTF0Campbell1.050
July 26, 19798:00 PM MDTF0Campbell1.050
July 26, 19798:00 PM MDTF0Campbell1.050
July 26, 19798:00 PM MDTF0Campbell1.050
July 22, 19798:00 PM MDTF0Campbell1.050
July 4, 19794:00 PM MDTF0Campbell1.050
June 15, 197911:30 PM MDTF1Campbell0.110
May 29, 19785:30 PM MDTF0Campbell3.0160
May 23, 19784:55 PM MDTF3Campbell14.5180$50,000 to $500,000
May 22, 19788:00 PM MDTF1Campbell3.0140$50,000 to $500,000
June 25, 19778:40 PM MDTF1Campbell0.110under $50
August 15, 19763:15 PM MDTF1Campbell0.110$50,000 to $500,000
July 12, 19765:05 PM MDTF0Campbell0.110
June 16, 19765:51 PM MDTF0Campbell0.110under $50
June 13, 19762:50 PM MDTF0Campbell0.110under $50
June 5, 19768:45 PM MDTF0Campbell0.110under $50
June 5, 19767:53 PM MDTF0Campbell0.110under $50
June 5, 19767:39 PM MDTF0Campbell0.110under $50
June 5, 19767:30 PM MDTF0Campbell0.110under $50
July 30, 19759:00 PM MDTF2Campbell12.433
July 30, 19759:00 PM MDTF1Campbell2.033
June 25, 19753:30 PM MDTF2Campbell16.3671
July 21, 19736:00 PM MDTF1Campbell0.110
July 21, 19736:00 PM MDTF1Campbell0.110
June 10, 19723:00 PM MDTF1Campbell0.110
June 24, 19694:20 PM GMT-6F0Campbell0.110
June 9, 19683:30 PM GMT-6F0Campbell0.110
April 19, 19673:30 PM GMT-7F1Campbell0.110$50 to $500
July 28, 19664:20 PM GMT-6F0Campbell0.110under $50
July 22, 19666:00 PM GMT-6F2Campbell3.6676$5,000 to $50,000
June 11, 19624:00 PM GMT-7F1Campbell0.110$50 to $500
June 11, 19623:30 PM GMT-7F2Natrona52.01004$5,000 to $50,000
May 28, 19621:27 PM GMT-7F0Campbell0.110
May 27, 195911:25 AM GMT-7F2Campbell10.633$5,000 to $50,000
June 3, 19585:35 PM GMT-7F1Campbell1.010under $50
June 3, 19585:35 PM GMT-7F1Campbell1.010under $50
June 21, 195611:15 AM GMT-7F1Campbell1.013$5,000 to $50,000
June 12, 19535:00 PM GMT-7F2Campbell2.033$500 to $5,000

Nearby

Warnings in force in Campbell CountyThe forecast for Campbell CountyThe live radar over Campbell CountyEvery county in Wyoming

What this means

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.

Sources

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