Montana, 2022

Flood and Hail in Montana, July 4, 2022

July 4, 2022 · NWS GGW · 4 events in 2 counties and zones

Shortwave moved through the southwesterly flow aloft that's been parked over the area this week and set off another round of severe thunderstorms over the area this afternoon into the overnight hours.

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
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 GGW wrote it up.

Shortwave moved through the southwesterly flow aloft that's been parked over the area this week and set off another round of severe thunderstorms over the area this afternoon into the overnight hours.

The radar

The Glasgow radar (KGGW), 116 km away, was scanning. The volume nearest the first event began at 00:03 UTC.

Open the radar archive at this moment

Event by event

2 hail, 1 thunderstorm wind, 1 flood. Local standard time, as filed.

Hail, Daniels

When
July 4, 5:00 PM MST
Where
Daniels County, 9.84 mi S of Flaxville
Measured
1 in hail
Reported by
Public
Coordinates
48.660, -105.210

Public reported, via Facebook, hail up to the size of quarters.

Thunderstorm Wind, Petroleum

When
July 4, 7:20 PM MST
Where
Petroleum County, 0.69 mi N of Winnett
Measured
52 kt (60 mph) estimated gust
Reported by
Trained Spotter
Coordinates
47.010, -108.350

A trained spotter estimated a thunderstorm wind gust of 60 mph. Heavy rainfall and pea size hail covering the ground was also observed.

Hail, Petroleum

When
July 4, 7:45 PM MST
Where
Petroleum County, Winnett
Measured
1 in hail
Reported by
Law Enforcement
Coordinates
47.000, -108.350

Petroleum County Sheriff reported hail up to the size of quarters, blown into drifts.

Flood, Petroleum

When
July 4, 8:00 PM MST
Where
Petroleum County, 2.08 mi NW of Winnett to 2.86 mi SW of Winnett
Cause
Heavy Rain
Reported by
Law Enforcement
Coordinates
47.025, -108.375

Petroleum County Sheriff reported water covered roads and fields around and in the town of Winnett.

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.
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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

The same day elsewhere

More

Every storm in Montana in 2022Every state in 2022This day in weather historyWarnings in Montana, July 2022

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: 1039543, 1039554, 1039563, 1039541.