Hail, Park
- When
- May 18, 5:20 PM CST
- Where
- Park County
- Measured
- 1.75 in hail
- Coordinates
- 44.520, -109.070
Tornado and Hail in Wyoming, May 18, 1991
4 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
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
4 hail, 1 tornado. Local standard time, as filed.
Tornado, Park
- When
- May 18, 6:07 PM MST
- Where
- Park County
- Rating
- F1
- Path length
- 0.2 mi
- Path width
- 60 yd
- Coordinates
- 44.750, -108.920
Hail, Laramie
- When
- May 18, 7:15 PM CST
- Where
- Laramie County
- Measured
- 0.75 in hail
- Coordinates
- 41.130, -104.700
Hail, Laramie
- When
- May 18, 8:00 PM CST
- Where
- Laramie County
- Measured
- 1 in hail
- Coordinates
- 41.020, -104.670
Hail, Laramie
- When
- May 18, 8:57 PM CST
- Where
- Laramie County
- Measured
- 1.25 in hail
- Coordinates
- 41.130, -105.080
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
- Tornadoes in Idaho, May 18, 1991
- Tornado in Missouri, May 18, 1991
- Tornado and Damaging Wind in Florida, May 18, 1991
- Hail and Damaging Winds in South Carolina, May 18, 1991
- Damaging Winds in Virginia, May 18, 1991
- Damaging Winds in Montana, May 18, 1991
- Tornado in Illinois, May 18, 1991
- Damaging Wind in Arkansas, May 18, 1991
- Hail in Texas, May 18, 1991
- Hail in Colorado, May 18, 1991
More
Every storm in Wyoming in 1991Every state in 1991This day in weather historyThe tornado archive for Wyoming, 1991Warnings in Wyoming, May 1991
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: 10162015, 10162016, 10162017, 10162018, 10162019.