Hail, McCone
- When
- May 10, 3:05 AM CST
- Where
- McCone County
- Measured
- 1.75 in hail
- Coordinates
- 47.830, -105.500
Tornado and Hail in Montana, May 10, 1991
2 thunderstorm wind, 1 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
- $3,000
- 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
2 thunderstorm wind, 1 hail, 1 tornado. Local standard time, as filed.
Tornado, McCone
- When
- May 10, 2:30 AM MST
- Where
- McCone County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 10 yd
- Property damage
- $3,000
- Coordinates
- 47.620, -105.600
Thunderstorm Wind, Richland
- When
- May 10, 3:30 AM CST
- Where
- Richland County
- Coordinates
- 47.980, -105.070
Thunderstorm Wind, Richland
- When
- May 10, 4:00 AM CST
- Where
- Richland County
- Coordinates
- 47.980, -104.920
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.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Texas, May 10, 1991
- Damaging Wind in Alabama, May 10, 1991
- Hail in Nebraska, May 10, 1991
- Hail in Wyoming, May 10, 1991
- Hail in South Dakota, May 10, 1991
- Hail in New Mexico, May 10, 1991
- Hail in Oklahoma, May 10, 1991
- Damaging Wind in Georgia, May 10, 1991
- Tornado in Illinois, May 10, 1991
More
Every storm in Montana in 1991Every state in 1991This day in weather historyThe tornado archive for Montana, 1991Warnings in Montana, 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: 10071484, 10071483, 10071485, 10071486.