Hail, Cascade
- When
- June 30, 2:45 PM CST
- Where
- Cascade County
- Measured
- 1 in hail
- Coordinates
- 47.520, -111.300
Tornadoes and Hail in Montana, June 30, 1979
3 thunderstorm wind, 2 hail, 2 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
- $250,000
- Crop damage
- None recorded
- Events
- 7
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 thunderstorm wind, 2 hail, 2 tornado. Local standard time, as filed.
Tornado, Phillips
- When
- June 30, 4:00 PM CST
- Where
- Phillips County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 33 yd
- Property damage
- $250,000
- Coordinates
- 48.230, -108.080
Thunderstorm Wind, Hill
- When
- June 30, 4:27 PM CST
- Where
- Hill County
- Measured
- 60 kt (69 mph)
- Coordinates
- 48.530, -109.770
Hail, Hill
- When
- June 30, 4:30 PM CST
- Where
- Hill County
- Measured
- 1.2 in hail
- Coordinates
- 48.870, -109.930
Thunderstorm Wind, Chouteau
- When
- June 30, 7:00 PM CST
- Where
- Chouteau County
- Coordinates
- 47.820, -110.670
Thunderstorm Wind, Judith Basin
- When
- June 30, 7:15 PM CST
- Where
- Judith Basin County
- Coordinates
- 47.150, -110.230
Tornado, Wibaux
- When
- June 30, 9:00 PM CST
- Where
- Wibaux County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 47.030, -104.300
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
- Tornado in Tennessee, June 30, 1979
- Tornado in Louisiana, June 30, 1979
- Tornado and Damaging Wind in Alabama, June 30, 1979
- Damaging Winds in Texas, June 30, 1979
- Hail and Damaging Wind in Florida, June 30, 1979
- Hail in Arkansas, June 30, 1979
- Damaging Wind in Oklahoma, June 30, 1979
- Hail in Indiana, June 30, 1979
- Hail in South Carolina, June 30, 1979
- Damaging Wind in Wyoming, June 30, 1979
- Damaging Wind in Kentucky, June 30, 1979
More
Every storm in Montana in 1979Every state in 1979This day in weather historyThe tornado archive for Montana, 1979
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: 10071346, 10071347, 10071348, 10071349, 10071350, 10071351, 10071352.