Montana, 2024

Hail and Damaging Winds in Montana, September 17, 2024

September 17, 2024 · NWS GGW · 7 events in 3 counties and zones

A large upper level low lifted up from the southwest and generated thunderstorms ahead of a cold front.

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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
7

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 GGW wrote it up.

A large upper level low lifted up from the southwest and generated thunderstorms ahead of a cold front.

The radar

The Glasgow radar (KGGW), 153 km away, was scanning. The volume nearest the first event began at 23:08 UTC.

Open the radar archive at this moment

Event by event

3 hail, 2 thunderstorm wind, 2 funnel cloud. Local standard time, as filed.

Hail, Dawson

When
September 17, 4:10 PM MST
Where
Dawson County, 1.56 mi WSW of Bloomfield
Measured
1.75 in hail
Reported by
Trained Spotter
Coordinates
47.410, -104.960

A trained spotter reported hail up to the size of golf balls.

Thunderstorm Wind, Dawson

When
September 17, 4:45 PM MST
Where
Dawson County, 1.4 mi W of Bloomfield
Measured
53 kt (61 mph) measured gust
Reported by
Mesonet
Coordinates
47.420, -104.960

The GW0525 Bloomfield mesonet site (G0525) measured a 61 mph thunderstorm wind gust.

Hail, Daniels

When
September 17, 4:53 PM MST
Where
Daniels County, 3.45 mi S of Flaxville
Measured
1.25 in hail
Reported by
Social Media
Coordinates
48.750, -105.170

The public reported, via Facebook, hail up to the size of half dollars.

Funnel Cloud, Roosevelt

When
September 17, 5:06 PM MST
Where
Roosevelt County, 8.13 mi SE of Bredette
Reported by
Public
Coordinates
48.420, -105.170

The public reported a funnel cloud near the intersection of West Lake Road and Flat Center Road or near 8 SE Bredette.

Hail, Roosevelt

When
September 17, 5:10 PM MST
Where
Roosevelt County, 0.69 mi N of Poplar
Measured
1.25 in hail
Reported by
Social Media
Coordinates
48.110, -105.200

The public reported, via Facebook, hail up to the size of half dollars.

Thunderstorm Wind, Roosevelt

When
September 17, 5:10 PM MST
Where
Roosevelt County, 0.69 mi N of Poplar
Measured
52 kt (60 mph) estimated gust
Reported by
Social Media
Coordinates
48.110, -105.200

The public reported, via Facebook, a photo of a tree that fell on a car and a fence.

Funnel Cloud, Roosevelt

When
September 17, 5:20 PM MST
Where
Roosevelt County, 8.13 mi SE of Bredette
Reported by
Social Media
Coordinates
48.420, -105.170

The public reported, via Facebook, a funnel cloud just west of Medicine Lake.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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.
Funnel Cloud
A rotating column of cloud extending from a thunderstorm that did not reach the ground.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Montana in 2024Every state in 2024This day in weather historyWarnings in Montana, September 2024

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: 1205383, 1205386, 1205384, 1205279, 1205385, 1205387, 1205282.