Tornado and Hail in Wyoming, September 18, 1986

Name: Tornado and Hail in Wyoming, September 18, 1986
Start: 1986-09-18T16:15
End: 1986-09-18T17:30
Location: Wyoming

September 18, 1986 · 3 events in 2 counties and zones

2 hail, 1 tornado, 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

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The toll

Deaths: 0
Injuries: 0
Property damage: $250,000
Crop damage: None recorded
Events: 3

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

2 hail, 1 tornado. Local standard time, as filed.

Hail, Platte

When: September 18, 4:15 PM CST
Where: Platte County
Measured: 1.75 in hail
Coordinates: 42.070, -104.970

Tornado, Platte

When: September 18, 3:22 PM MST
Where: Platte County
Rating: F1
Path length: 2 mi
Path width: 50 yd
Property damage: $250,000
Coordinates: 42.080, -105.020

Hail, Laramie

When: September 18, 5:30 PM CST
Where: Laramie County
Measured: 0.75 in hail
Coordinates: 41.030, -104.370

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

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

The same day elsewhere

Every storm in Wyoming in 1986 Every state in 1986 This day in weather history The tornado archive for Wyoming, 1986 Warnings in Wyoming, September 1986

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: 10160846, 10160845, 10160847.