Tornadoes · United States · Wyoming

Tornadoes in Platte County, Wyoming

50 tornadoes have crossed Platte County since 1950, 4th of the 23 counties in Wyoming with a tornado on record, an average of one every 1.5 years. They have killed 0 people and injured 5. 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
50
Deaths
0
Injuries
5
F4 and above
0
Worst on record
F3, June 27, 1955

The strongest

  1. F3, Platte County, WyomingJune 27, 1955F3, 2.0 mi (3 km)
  2. EF2, Platte County, WyomingJune 7, 2012EF2, 20.6 mi (33 km)

Every year with a tornado

The 32 years of the 76 in the record with a tornado in Platte County. Each year links to every tornado in Wyoming that year.

YearTornadoesDeathsInjuriesStrongest
20232Unrated
20194Unrated
20182Unrated
20141EF0
20131EF0
201221EF2
20103EF0
20091EF0
20081EF0
20071EF0
20022F0
20011F0
20001F0
19991F0
19981F0
19972F0
19942F1
19924F0
19911F1
19901F0
19881F0
198721F1
19862F1
19842F0
19811F0
19772F1
19761F1
19721F0
19711F1
19641F1
19621F1
195513F3

Every tornado that crossed Platte County

50 tornadoes, newest first.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 23, 20235:11 PM MDTUnratedPlatte0.050
June 22, 20234:42 PM MDTUnratedPlatte3.150
September 10, 20194:58 PM MDTUnratedPlatte8.530
September 10, 20193:09 PM MDTUnratedPlatte4.830
July 4, 20195:16 PM MDTUnratedPlatte2.0200
July 4, 20194:46 PM MDTUnratedPlatte0.010
July 28, 20184:27 PM MDTUnratedPlatte3.450
May 27, 20184:05 PM MDTUnratedPlatte2.650
May 21, 20147:15 PM MDTEF0Platte0.925
June 22, 20131:58 PM MDTEF0Platte0.430
June 7, 20123:07 PM MDTEF2Platte20.62001
May 18, 20122:09 PM MDTEF0Platte1.050
July 4, 20102:06 PM MDTEF0Platte1.025
June 20, 20104:26 PM MDTEF0Platte7.2100
May 21, 20104:59 PM MDTEF0Platte0.320
June 14, 20091:27 PM MDTEF0Platte5.940
May 23, 20083:26 PM MDTEF0Platte20.550
May 17, 20073:29 PM MDTEF0Platte0.130
August 29, 20023:06 PM MDTF0Platte0.120
August 29, 20023:05 PM MDTF0Platte0.220
June 3, 200112:20 PM MDTF0Platte0.120
May 16, 20007:07 PM MDTF0Platte0.230
May 31, 199912:08 PM MDTF0Platte0.130
June 9, 19981:04 PM MDTF0Platte11.530
June 10, 19976:50 PM MDTF0Platte0.110
June 2, 19972:35 PM MDTF0Platte0.110
July 14, 19947:30 PM MDTF1Platte1.050$5,000 to $50,000
May 19, 19948:15 PM MDTF0Platte0.110
July 1, 19928:45 PM MDTF0Platte0.110
June 29, 19928:45 PM MDTF0Platte0.110
June 29, 19924:00 PM MDTF0Platte0.110
June 29, 19923:58 PM MDTF0Platte0.110
June 2, 199111:00 AM MDTF1Platte1.090$50,000 to $500,000
May 24, 19903:10 PM MDTF0Platte0.140
June 13, 19883:08 PM MDTF0Platte0.830
June 18, 19879:35 PM MDTF1Platte0.8131$5,000 to $50,000
June 17, 19876:38 PM MDTF0Platte0.210
September 18, 19864:22 PM MDTF1Platte2.050$50,000 to $500,000
June 13, 19865:10 PM MDTF0Platte15.023
June 15, 19841:46 PM MDTF0Platte1.017
June 15, 19841:45 PM MDTF0Platte0.510
April 20, 19812:00 PM MSTF0Platte0.110
June 20, 19775:30 PM MDTF1Platte0.110under $50
June 20, 19775:15 PM MDTF1Platte0.110under $50
August 4, 19762:40 PM MDTF1Platte0.110
July 27, 197210:04 PM MDTF0Platte0.110
June 8, 19714:00 AM MDTF1Laramie30.250
June 21, 19644:30 PM GMT-7F1Platte0.110$5,000 to $50,000
June 14, 19626:00 PM GMT-7F1Platte0.517$5,000 to $50,000
June 27, 19551:00 PM GMT-7F3Platte2.01003$500 to $5,000

Nearby

Warnings in force in Platte CountyThe forecast for Platte CountyThe live radar over Platte 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.