Hail, Judith Basin
- When
- June 21, 3:15 PM CST
- Where
- Judith Basin County
- Measured
- 1 in hail
- Coordinates
- 47.150, -110.230
Tornadoes and Hail in Montana, June 21, 1991
5 tornado, 4 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
- 9
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
5 tornado, 4 hail. Local standard time, as filed.
Hail, Golden Valley
- When
- June 21, 4:02 PM CST
- Where
- Golden Valley County
- Measured
- 1 in hail
- Coordinates
- 46.130, -108.870
Hail, Yellowstone
- When
- June 21, 4:45 PM CST
- Where
- Yellowstone County
- Measured
- 1.75 in hail
- Coordinates
- 46.230, -107.850
Tornado, Yellowstone
- When
- June 21, 4:40 PM MST
- Where
- Yellowstone County
- Rating
- F1
- Path length
- 0.2 mi
- Path width
- 10 yd
- Coordinates
- 45.800, -108.580
Tornado, Big Horn
- When
- June 21, 4:56 PM MST
- Where
- Big Horn County
- Rating
- F1
- Path length
- 0.2 mi
- Path width
- 10 yd
- Property damage
- $250,000
- Coordinates
- 45.820, -107.600
Tornado, Fergus
- When
- June 21, 5:15 PM MST
- Where
- Fergus County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 10 yd
- Coordinates
- 47.250, -109.680
Tornado, Rosebud
- When
- June 21, 5:47 PM MST
- Where
- Rosebud County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 10 yd
- Coordinates
- 45.880, -106.950
Hail, Chouteau
- When
- June 21, 8:45 PM CST
- Where
- Chouteau County
- Measured
- 1.75 in hail
- Coordinates
- 48.180, -110.120
Tornado, Rosebud
- When
- June 21, 8:30 PM MST
- Where
- Rosebud County
- Rating
- F0
- Path length
- 0.2 mi
- Path width
- 10 yd
- Coordinates
- 46.380, -106.830
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
- Tornado and Hail in Nebraska, June 21, 1991
- Tornadoes and Hail in Colorado, June 21, 1991
- Tornadoes and Hail in Texas, June 21, 1991
- Hail and Damaging Winds in Oklahoma, June 21, 1991
- Hail and Damaging Winds in Kansas, June 21, 1991
- Hail and Damaging Winds in Tennessee, June 21, 1991
- Hail and Damaging Wind in Mississippi, June 21, 1991
- Hail in Wisconsin, June 21, 1991
- Damaging Winds in Missouri, June 21, 1991
- Tornado and Hail in Wyoming, June 21, 1991
- Damaging Winds in Florida, June 21, 1991
- Hail in Iowa, June 21, 1991
More
Every storm in Montana in 1991Every state in 1991This day in weather historyThe tornado archive for Montana, 1991Warnings in Montana, June 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: 10071526, 10071527, 10071529, 10071528, 10071530, 10071531, 10071532, 10071534, 10071533.