Name: Hail and Damaging Wind in Montana, June 29, 2001
Start: 2001-06-29T01:20
End: 2001-06-29T01:55
Location: Montana

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: 2

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 Glasgow, MT wrote its last area forecast discussion before the first event at Jun 28, 7:20 PM MST, 6 hours earlier.

Area forecast discussion, Jun 28, 7:20 PM MST, 6 hours before

NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
820 PM MDT THU JUN 28 2001

SEVERE THUNDERSTORMS DEVELOPING JUST NORTH OF THETA-E RIDGE AXIS
ACROSS SOUTHERN MONTANA. STORMS TRACKING EAST BETWEEN RIDGE AXIS AND
QUASI-DRY LINE STRETCHING FROM LEWISTOWN TO WOLF POINT WITH SEVERE
STORMS STAYING SOUTH OF CWA ATTM. THETA-E RIDGE DOES CURVE NORTHWARD
ACROSS WESTERN MONTANA CLIPPING SOUTHEAST ZONES SO CHANCE OF SEVERE
WX STILL IN THAT AREA. CURRENT FORECAST AS GOOD HANDLE ON SITUATION
ATTM SO NO UPDATE PLANNED. EBERT

EXTENDED...BASIC AGREEMENT AMONG FCST MODELS WITH SUBTLE DIFFERENCES
...TYPICAL OF SUMMER PATTERN. MODELS AGREE BUILDING W CONUS UPPER HI
VICINITY OF FOUR CORNERS WITH RIDGING NORTH THRU MT AND S CANADA.
12Z AVN SHOWS MORE PRONOUNCED RIDGING ACROSS MT/S CANADA THAN 00Z
MRF AND CANADIAN WHICH SHOW TRANSITION TO ZONAL THEN SLIGHT NW FLOW
ACROSS MT BEGINNING SUNDAY AS RIDGE RETROGRADES TO GT BASIN/PAC NW
AXIS. MRF/CANADIAN SOLUTION MORE TYPICAL SUMMER PATTERN FOR REGION
WITH MINOR RIPPLES IN FLOW POTENTIAL TRIGGERS FOR AFTERNOON/EVENING
CONVECTION. PATTERN LOOKS MAINLY DRY AFTER SUNDAY WHEN ANTICIPATE
COOL FRONT PASSAGE. THICKNESS PATTERN SHOWS SLIGHT COOLING FROM
SUNDAY THRU END OF EXTENDED PERIOD. GIVEN THICKNESS PATTERN...WILL
GO ABOVE MOS GUIDANCE SUNDAY BUT ACCEPT GUIDANCE LATER IN PERIOD.
                                            SECORA

KGGW 058/081 057/080 058/085 051/080 054/082 057/081 056/080
      BETBUUU  951122/8642111
KGDV 061/082 059/081 057/087 051/083 052/081 055/083 056/083
      BETBUUU  954333/8642111

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

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

Thunderstorm Wind, Prairie

When: June 29, 1:20 AM MST
Where: Prairie County, 15 mi E of Terry
Measured: 52 kt (60 mph)
Reported by: EMERGENCY MANAGER
Coordinates: 46.783, -104.983

Hail, Dawson

When: June 29, 1:55 AM MST
Where: Dawson County, 6 mi S of Glendive
Measured: 0.75 in hail
Reported by: TRAINED SPOTTER
Coordinates: 47.017, -104.733

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 2001 Every state in 2001 This day in weather history Warnings in Montana, June 2001

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: 5252310, 5252311.