Wyoming, 1987

Hail and Damaging Winds in Wyoming, August 11, 1987

August 11, 1987 · NWS CYS · 5 events in 4 counties and zones

3 thunderstorm wind, 2 hail, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
5

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Event by event

3 thunderstorm wind, 2 hail. Local standard time, as filed.

Thunderstorm Wind, Sweetwater

When
August 11, 4:17 AM CST
Where
Sweetwater County
Measured
55 kt (63 mph)
Coordinates
41.600, -109.070

Thunderstorm Wind, Carbon

When
August 11, 2:40 PM CST
Where
Carbon County
Measured
55 kt (63 mph)
Coordinates
41.800, -107.200

Thunderstorm Wind, Weston

When
August 11, 3:45 PM CST
Where
Weston County
Coordinates
43.850, -104.220

Hail, Crook

When
August 11, 6:15 PM CST
Where
Crook County
Measured
2 in hail
Coordinates
44.650, -104.600

Hail, Crook

When
August 11, 6:30 PM CST
Where
Crook County
Measured
2 in hail
Coordinates
44.680, -104.450

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wyoming in 1987Every state in 1987This day in weather historyWarnings in Wyoming, August 1987

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10161979, 10161980, 10161981, 10161982, 10161983.