Thunderstorm Wind, Fallon
- When
- July 23, 3:00 PM MST
- Where
- Fallon County, 5.96 mi NE of Baker Arpt
- Measured
- 65 kt (75 mph) measured gust
- Reported by
- Trained Spotter
- Coordinates
- 46.430, -104.160
Hail and Damaging Winds in Montana, July 23, 2020
An unstable southwest flow aloft, combined with a disturbance aloft, resulted in a few isolated severe thunderstorms across portions of the Billings Forecast Area.
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.
What happened
The episode as NWS BYZ wrote it up.
An unstable southwest flow aloft, combined with a disturbance aloft, resulted in a few isolated severe thunderstorms across portions of the Billings Forecast Area.
The radar
The national radar mosaic for the moment the first event began.
Event by event
3 thunderstorm wind, 1 hail. Local standard time, as filed.
Hail, Fallon
- When
- July 23, 3:17 PM MST
- Where
- Fallon County, 5.14 mi NE of Baker Arpt
- Measured
- 0.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 46.420, -104.170
Most of the hail was smaller.
Thunderstorm Wind, Sweet Grass
- When
- July 23, 3:40 PM MST
- Where
- Sweet Grass County, 0.69 mi N of Big Timber Arpt
- Measured
- 53 kt (61 mph) measured gust
- Reported by
- AWOS
- Coordinates
- 45.810, -109.980
Thunderstorm Wind, Wheatland
- When
- July 23, 4:04 PM MST
- Where
- Wheatland County, 0.69 mi N of Judith Gap
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- Department of Highways
- Coordinates
- 46.690, -109.750
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
- Flash Flooding in Arizona, July 23, 2020
- Flash Flooding and Damaging Winds in North Carolina, July 23, 2020
- Flash Flooding and Flooding in Massachusetts, July 23, 2020
- Wildfire in Washington, July 23 to 30, 2020
- Flash Flooding and Flooding in Nebraska, July 23 to 26, 2020
- Flash Flooding and Flood in Maryland, July 23 to 24, 2020
- Damaging Winds and Lightning Strike in New York, July 23, 2020
- Flash Flood and Flooding in Virginia, July 23, 2020
- Damaging Winds in Pennsylvania, July 23, 2020
- Damaging Winds in Virginia, July 23, 2020
- Flash Flooding and Debris Flows in Utah, July 23, 2020
- Damaging Winds in New Jersey, July 23 to 24, 2020
More
Every storm in Montana in 2020Every state in 2020This day in weather historyWarnings in Montana, July 2020
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 2026-09-30. Each event’s entry at NCEI: 899614, 899613, 899615, 899616.