Hail, Natrona
- When
- May 11, 4:52 PM CST
- Where
- Natrona County
- Measured
- 0.75 in hail
- Coordinates
- 42.900, -106.470
Tornadoes and Hail in Wyoming, May 11, 1991
3 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $250,000
- Crop damage
- None recorded
- Events
- 4
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 tornado, 1 hail. Local standard time, as filed.
Tornado, Converse
- When
- May 11, 5:54 PM MST
- Where
- Converse County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 20 yd
- Coordinates
- 43.150, -105.270
Tornado, Weston
- When
- May 11, 7:39 PM MST
- Where
- Weston County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 20 yd
- Coordinates
- 44.100, -104.680
Tornado, Weston
- When
- May 11, 11:22 PM MST
- Where
- Weston County
- Rating
- F1
- Path length
- 0.2 mi
- Path width
- 80 yd
- Property damage
- $250,000
- Coordinates
- 43.880, -104.320
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 and Hail in South Dakota, May 11, 1991
- Tornadoes and Hail in Texas, May 11, 1991
- Tornado and Hail in Colorado, May 11, 1991
- Hail in Nebraska, May 11, 1991
- Hail in New Mexico, May 11, 1991
- Tornado in Montana, May 11, 1991
- Tornado in Illinois, May 11, 1991
- Tornado in Oklahoma, May 11, 1991
- Damaging Wind in Mississippi, May 11, 1991
- Hail in Kansas, May 11, 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: 10162005, 10162006, 10162007, 10162008.