Montana, 2005

Hail and Damaging Winds in Montana, June 21, 2005

June 21, 2005 · NWS BYZ · 13 events in 7 counties and zones

11 thunderstorm wind, 2 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
13

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 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 Jun 21, 2:22 PM MST, 1 hour 18 minutes earlier.

Area forecast discussion, Jun 21, 2:22 PM MST, 1 hour 18 minutes before
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Hazardous weather outlook, Jun 21, 1:42 PM MST, 1 hour 58 minutes before
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The radar

The Billings radar (KBLX), 106 km away, was scanning. The volume nearest the first event began at 22:41 UTC.

Open the radar archive at this moment

Event by event

11 thunderstorm wind, 2 hail. Local standard time, as filed.

Thunderstorm Wind, Stillwater

When
June 21, 3:40 PM MST
Where
Stillwater County, 2 mi S of Nye
Measured
60 kt (69 mph) measured gust
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
45.417, -109.817

Thunderstorm Wind, Stillwater

When
June 21, 3:45 PM MST
Where
Stillwater County, Nye
Measured
58 kt (67 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
45.450, -109.817

Thunderstorm Wind, Stillwater

When
June 21, 4:10 PM MST
Where
Stillwater County, Absarokee
Measured
70 kt (81 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
45.500, -109.433

Uprooted evergreen tree and awning blown off house

Thunderstorm Wind, Stillwater

When
June 21, 4:30 PM MST
Where
Stillwater County, Rapelje
Measured
58 kt (67 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
45.967, -109.267

Thunderstorm Wind, Carbon

When
June 21, 4:35 PM MST
Where
Carbon County, 5 mi SW of Bridger
Measured
65 kt (75 mph) measured gust
Reported by
TRAINED SPOTTER
Coordinates
45.250, -108.983

Roofing material ripped off house

Thunderstorm Wind, Carbon

When
June 21, 4:40 PM MST
Where
Carbon County, 2 mi NE of Bridger
Measured
70 kt (81 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
45.317, -108.883

2 inch diameter tree branches down

Thunderstorm Wind, Yellowstone

When
June 21, 4:50 PM MST
Where
Yellowstone County, 9 mi WNW of Acton
Measured
70 kt (81 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
45.983, -108.850

Thunderstorm Wind, Yellowstone

When
June 21, 4:50 PM MST
Where
Yellowstone County, 12 mi NW of Acton
Measured
65 kt (75 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
46.050, -108.867

Thunderstorm Wind, Yellowstone

When
June 21, 4:55 PM MST
Where
Yellowstone County, Billings
Measured
65 kt (75 mph) estimated gust
Reported by
NWS EMPLOYEE(OFF DUTY)
Coordinates
45.800, -108.483

Thunderstorm Wind, Golden Valley

When
June 21, 5:00 PM MST
Where
Golden Valley County, 25 mi SE of Lavina
Measured
60 kt (69 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
46.033, -108.567

Thunderstorm Wind, Musselshell

When
June 21, 5:50 PM MST
Where
Musselshell County, 10 mi N of Roundup
Measured
60 kt (69 mph) estimated gust
Reported by
TRAINED SPOTTER
Coordinates
46.600, -108.533

Hail, Rosebud

When
June 21, 6:45 PM MST
Where
Rosebud County, 11 mi SW of Sumatra
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
46.500, -107.717

Hail, Treasure

When
June 21, 6:55 PM MST
Where
Treasure County, 20 mi NW of Hysham
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
46.500, -107.533

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 2005Every state in 2005This day in weather historyWarnings in Montana, June 2005

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: 5452771, 5452772, 5452773, 5452774, 5452775, 5452776, 5452777, 5452778, 5452779, 5452780, 5452781, 5452782, 5452783.