Montana, 2025

Hail and Damaging Winds in Montana, July 19, 2025

July 19, 2025 · NWS BYZ · 4 events in 4 counties and zones

Strong thunderstorms occurred across far southeast Montana, producing gusts up to 65 mph and hail up to golf ball size.

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

Open the live radar over this ground

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.

Strong thunderstorms occurred across far southeast Montana, producing gusts up to 65 mph and hail up to golf ball size.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Billings, MT wrote its last area forecast discussion before the first event at Jul 19, 12:55 PM MST, 1 hour 20 minutes earlier.

Area forecast discussion, Jul 19, 12:55 PM MST, 1 hour 20 minutes before
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In the hours before

Local storm report, Jul 19, 2:14 PM MST, 1 minute before
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The radar

The Rapid City radar (KUDX), 225 km away, was scanning. The volume nearest the first event began at 21:16 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind, 1 hail. Local standard time, as filed.

Thunderstorm Wind, Powder River

When
July 19, 2:15 PM MST
Where
Powder River County, 6.39 mi SSW of Biddle
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
45.010, -105.380

Mesonet station mtbid at 6.2 S Biddle.

Thunderstorm Wind, Custer

When
July 19, 6:15 PM MST
Where
Custer County, 0.95 mi E of Knowlton
Measured
52 kt (60 mph) estimated gust
Reported by
Trained Spotter
Coordinates
46.350, -105.060

Estimated gust by a spotter.

Thunderstorm Wind, Fallon

When
July 19, 7:32 PM MST
Where
Fallon County, 11.22 mi SE of Webster
Measured
56 kt (64 mph) estimated gust
Reported by
Trained Spotter
Coordinates
45.920, -104.110

Estimated gust by a spotter.

Hail, Carter

When
July 19, 7:38 PM MST
Where
Carter County, 3.2 mi ENE of Mill Iron
Measured
1.75 in hail
Reported by
COOP Observer
Coordinates
45.870, -104.160

Most pea size, but with the occasional golf ball size hail.

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

More

Every storm in Montana in 2025Every state in 2025This day in weather historyWarnings in Montana, July 2025

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 2026-10-01. Each event’s entry at NCEI: 1288058, 1288059, 1288060, 1288057.