Tornadoes and Hail in Colorado, May 12, 1986

Name: Tornadoes and Hail in Colorado, May 12, 1986
Start: 1986-05-12T14:05
End: 1986-05-12T23:00
Location: Colorado

May 12, 1986 · 3 events in 3 counties and zones

2 tornado, 1 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

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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
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 tornado, 1 hail. Local standard time, as filed.

Tornado, Weld

When: May 12, 2:05 PM MST
Where: Weld County
Rating: F1
Path length: 0.5 mi
Path width: 30 yd
Coordinates: 40.620, -104.600

Hail, Kiowa

When: May 12, 11:00 PM CST
Where: Kiowa County
Measured: 1 in hail
Coordinates: 38.620, -102.370

Tornado, Cheyenne

When: May 12, 10:29 PM MST
Where: Cheyenne County
Rating: F1
Path length: 0.5 mi
Path width: 30 yd
Coordinates: 38.630, -102.580

What these are

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.
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

Every storm in Colorado in 1986 Every state in 1986 This day in weather history The tornado archive for Colorado, 1986 Warnings in Colorado, May 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: 9984737, 9984739, 9984738.