Hail, Prairie
- When
- August 15, 12:40 PM MST
- Where
- Prairie County, Mildred
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.680, -104.950
Hail in Montana, August 15, 1999
8 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
- 8
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 national radar mosaic for the moment the first event began.
Event by event
8 hail. Local standard time, as filed.
Hail, Prairie
- When
- August 15, 12:41 PM MST
- Where
- Prairie County, 5 mi S of Terry
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 46.720, -105.300
Hail, Prairie
- When
- August 15, 12:45 PM MST
- Where
- Prairie County, Fallon
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.830, -105.120
Hail, Prairie
- When
- August 15, 12:48 PM MST
- Where
- Prairie County, 10 mi E of Fallon
- Measured
- 1 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.830, -104.900
Hail, Wibaux
- When
- August 15, 1:08 PM MST
- Where
- Wibaux County, 20 mi SW of Wibaux
- Measured
- 1.5 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.780, -104.480
Hail, Wibaux
- When
- August 15, 1:22 PM MST
- Where
- Wibaux County, 11 mi SW of Wibaux
- Measured
- 1.25 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 46.870, -104.350
Hail, Wibaux
- When
- August 15, 1:22 PM MST
- Where
- Wibaux County, Wibaux
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 46.980, -104.180
Hail, Wibaux
- When
- August 15, 1:35 PM MST
- Where
- Wibaux County, 2 mi E of Yates Siding
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.950, -104.070
What these are
- 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
- Tornadoes and Hail in North Dakota, August 15, 1999
- Tornado in North Dakota, August 15, 1999
- Hail in North Dakota, August 15, 1999
- Hail in North Dakota, August 15, 1999
- Tornado in North Dakota, August 15, 1999
- Hail and Damaging Winds in Nebraska, August 15, 1999
- Damaging Wind in North Dakota, August 15, 1999
- Tornado in North Dakota, August 15, 1999
- Tornadoes and Hail in Montana, August 15, 1999
- Lightning Strike in Florida, August 15, 1999
- Hail in Minnesota, August 15, 1999
- Damaging Wind in Minnesota, August 15, 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: 5709590, 5709591, 5709592, 5709593, 5709594, 5709595, 5709596, 5709597.