Montana, 1991Tornado and Hail in Montana, August 6, 1991
August 6, 1991 · NWS BIL · 4 events in 3 counties and zones
2 thunderstorm wind, 1 hail, 1 tornado, as filed by the National Weather Service.
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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- 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.
Thunderstorm Wind, Dawson
- When
- August 6, 5:30 PM CST
- Where
- Dawson County
- Coordinates
- 47.100, -104.730
Hail, Wibaux
- When
- August 6, 5:45 PM CST
- Where
- Wibaux County
- Measured
- 2.75 in hail
- Coordinates
- 46.980, -104.180
Tornado, Wibaux
- When
- August 6, 6:43 PM MST
- Where
- Wibaux County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 10 yd
- Coordinates
- 46.980, -104.180
Thunderstorm Wind, Richland
- When
- August 6, 9:00 PM CST
- Where
- Richland County
- Coordinates
- 47.700, -104.150
- 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.
- 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.
- Hail and Damaging Winds in Oregon, August 6, 19915 injured · 2 in hail · 9 events
- Hail and Damaging Winds in Florida, August 6, 19911 in hail · 7 events
- Damaging Winds in Georgia, August 6, 19916 events
- Hail and Damaging Winds in Washington, August 6, 19911 in hail · 6 events
- Damaging Winds in Kentucky, August 6, 19913 events
- Damaging Winds in South Carolina, August 6, 19912 events
- Damaging Winds in North Carolina, August 6, 19912 events
- Damaging Wind in Texas, August 6, 19911 event
- Damaging Wind in Idaho, August 6, 19911 event
- Damaging Wind in Tennessee, August 6, 19911 event
- Hail in Colorado, August 6, 19910.75 in hail · 1 event
- Hail in Nebraska, August 6, 19911.25 in hail · 1 event
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: 10072679, 10072680, 10072681, 10072682.