Thunderstorm Wind, Valley
- When
- August 17, 7:45 PM MST
- Where
- Valley County, 15 mi N of Hinsdale
- Measured
- 52 kt (60 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 48.620, -107.080
Hail and Damaging Winds in Montana, August 17, 1998
3 thunderstorm wind, 1 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
- 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.
The radar
The Glasgow radar (KGGW), 57 km away, was scanning. The volume nearest the first event began at 02:42 UTC.
Event by event
3 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Valley
- When
- August 17, 8:00 PM MST
- Where
- Valley County, 35 mi N of Hinsdale
- Measured
- 62 kt (71 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 48.900, -107.080
Thunderstorm Wind, Valley
- When
- August 17, 8:00 PM MST
- Where
- Valley County, 1 mi E of Hinsdale
- Measured
- 50 kt (58 mph)
- Reported by
- GENERAL PUBLIC
- Coordinates
- 48.400, -107.070
A tourist driving east on Highway 2 reported almost loosing control of his vehicle in high winds.
Hail, Valley
- When
- August 17, 9:20 PM MST
- Where
- Valley County, 8 mi E of Larslan
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 48.570, -106.070
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Lightning Strike in Florida, August 17, 1998
- Damaging Wind in Florida, August 17, 1998
- Flash Flooding in New York, August 17, 1998
- Flooding in Pennsylvania, August 17, 1998
- Flooding in New Jersey, August 17, 1998
- Flash Flooding and Flood in Connecticut, August 17, 1998
- Flash Flooding in New Jersey, August 17, 1998
- Flash Flooding and Flood in Arizona, August 17, 1998
- Hail and Damaging Wind in Florida, August 17, 1998
- Wildfire in Montana, August 17 to 18, 1998
- Damaging Wind in Wisconsin, August 17, 1998
- Lightning Strike in Wisconsin, August 17, 1998
More
Every storm in Montana in 1998Every state in 1998This day in weather historyWarnings in Montana, August 1998
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: 5655740, 5655741, 5655742, 5655743.