Montana, 2002

Flash Flood in Montana, August 7, 2002

August 7, 2002 · NWS GGW · 1 event in 1 county or zone

1 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
$100,000
Crop damage
$50,000
Events
1

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 Aug 6, 7:30 PM MST, 6 hours earlier.

Area forecast discussion, Aug 6, 7:30 PM MST, 6 hours before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
830 PM MDT TUE AUG 6 2002

.SHORT TERM...KGGW SOUNDING SHOWING 18Z CAP QUICKLY ERODED ALLLOWING
FOR SEVERE STORM DEVELOPMENT...BUT RATHER ISOLATED. UPDATING ZONES
FOR NEW SEVERE THUNDERSTORM WATCH WHICH REPLACES TORNADO WATCH. WILL
CHANGE SOME WORDING AND UPDATE SURFACE WINDS. SIMONSEN

.LONG TERM...
12Z AVN A BIT SLOWER WITH EXITING UPPER LOW LATER THIS WEEK. ITS
TIMING MORE IN LINE WITH ECMWF SOLUTION. UPPER TROF THEN FOLLOWS
THIS SYSTEM FROM THE NW TO BRING ANOTHER COOL AIRMASS.  JAMBA

KGGW TTB 062/084 059/078 059/078 76466663
     BTBB 054/084 053/084 053/080 053/078 7600032011
KGDV TTB 063/086 060/079 060/080 76466663
     BTBE 054/085 055/084 055/081 055/079 7600132022

.GGW...TORNADO WATCH CANCELLED. SEVERE THUNDERSTORM WATCH UNTIL 2
AM...ALL COUNTIES EXCEPT PHILLIPS AND PETROLEUM.

The radar

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

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Roosevelt

When
August 7, 1:30 AM MST to 7:00 AM MST
Where
Roosevelt County, Wolf Pt
Property damage
$100,000
Crop damage
$50,000
Reported by
LAW ENFORCEMENT
Coordinates
48.295, -105.016 (the zone’s center; the record gives no point)

Heavy rain during the evening of the 6th and morning of the 7th over Western and Central Roosevelt County. The Wolf Point Airport reported 2.82 inches of rain between 1 am and 3 am on the 7th. The rain flooded the railroad underpass in Wolf Point and several fields between Wolf Point and Poplar. Several roads were washed out in the area.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

More

Every storm in Montana in 2002Every state in 2002This day in weather historyWarnings in Montana, August 2002

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: 5317012.