Thunderstorm Wind, Hill
- When
- August 7, 9:15 PM MST
- Where
- Hill County, Box Elder
- Measured
- 70 kt (81 mph)
- Property damage
- $40,000
- Reported by
- GENERAL PUBLIC
- Coordinates
- 48.320, -110.020
OVERTURNED A TRAILER...DAMAGED FENCES AND ROOFS
Damaging Wind in Montana, August 7, 1999
1 thunderstorm wind, 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
- $40,000
- Crop damage
- None recorded
- Events
- 1
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.
The radar
The Great Falls radar (KTFX), 140 km away, was scanning. The volume nearest the first event began at 04:17 UTC.
Event by event
1 thunderstorm wind. Local standard time, as filed.
What these are
- 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
- Flash Flood in Nebraska, August 7, 1999
- Lightning Strike in Colorado, August 7, 1999
- Heat in Arkansas, August 7, 1999
- Heat in Louisiana, August 7, 1999
- Flash Flood in Iowa, August 7, 1999
- Damaging Wind in Missouri, August 7, 1999
- Flash Flood in Nebraska, August 7, 1999
- Damaging Winds in Kansas, August 7, 1999
- Flash Flood in South Dakota, August 7, 1999
- Flash Flood in Iowa, August 7, 1999
- Flash Flood in Iowa, August 7, 1999
- Flash Flood and Lightning Strike in Iowa, August 7, 1999
More
Every storm in Montana in 1999Every state in 1999This day in weather historyWarnings in Montana, August 1999
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: 5719533.