Montana, 2002

Damaging Wind in Montana, June 21, 2002

June 21, 2002 · NWS TFX · 1 event in 1 county or zone

1 thunderstorm wind, 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
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 Great Falls, MT wrote its last area forecast discussion before the first event at Jun 21, 7:55 PM MST, 35 minutes earlier.

Area forecast discussion, Jun 21, 7:55 PM MST, 35 minutes before
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
855 PM MDT FRI JUN 21 2002

.SHORT TERM...WILL UPDATE THIS EVENING. SEVERE CONVECTIVE ACTIVITY
CONTINUING ACROSS PORTIONS OF THE SOUTHWEST. STORMS HAVE PRODUCED
SOME HAIL BUT REPORTS OF STRONG WIND HAVE ALSO BEEN RECEIVED. RADAR
INDICATES ACTIVITY BEGINNING TO DECREASE AT THIS TIME WITH THE
STRONGEST CELL MOVING INTO WESTERN MEAGHER COUNTY. UPPER TROF MOVING
INLAND ACROSS NEVADA WILL CONTINUE TO MOVE EAST AND WEAKEN
SATURDAY. STRONG BACKING FLOW ALOFT OVER THE AREA AGAIN SATURDAY
WITH CONVECTIVE ACTIVITY A GOOD BET. EMANUEL

.EXTENDED...NO SIGNIFICANT CHANGES TO THE EXTENDED FORECAST. STRONG
UPPER RIDGE BUILDS OVER WESTERN MONTANA LATE TUESDAY. RIDGE REMAINS
IN PLACE OVER THE CWA THROUGH FRIDAY WITH VERY WARM TEMPERATURES AND
DRY CONDITIONS. GOOD AGREEMENT EXISTS BETWEEN THE ECMWF AND MRF WITH
ONLY MINOR DIFFERENCES IN POSITION OF RIDGE AXIS. MODELS DO TRY TO
BRING WEAK IMPULSES THROUGH THE RIDGE FROM TIME TO TIME THROUGH THE
PERIOD BUT SUBSIDENCE SHOULD BE TOO STRONG TO INITIATE ANY
CONVECTIVE ACTIVITY.

.CCF NUMBERS
GTF TT 054/075 054/080 052 13235
    BBBBB 082/058 088/055 090/055 092/055 092 21121111111
CTB TT 050/074 052/077 050 13136
    BBBBB 080/050 084/052 087/050 088/050 089 31121111111
HLN TT 054/077 054/080 054 13445
    BBBBB 084/056 090/055 092/055 092/055 091 32121111111
BZN TT 050/075 050/075 050 13445
    EBBBB 080/050 088/050 090/050 090/050 089 32121111111
WEY TT 042/068 042/068 042 13555
    EBBBB 072/040 078/040 078/040 079/040 079 32121111111
DLN TT 050/075 050/075 050 13445
    EBBBB 080/050 088/048 088/048 090/048 090 32121111111
HVR TT 055/088 057/088 055 13355
    EBBBB 088/058 090/058 092/058 092/058 092 44121111111
LWT TT 052/075 053/077 052 13455
    EBBBB 079/052 087/052 089/053 090/053 090 32121111111=

.TFX...FLOOD WARNING CONTINUES FOR GLACIER COUNTY
       RIVER STATEMENT FOR NORTHWEST ZONES...SEE FGUS85 KTFX...
       RVSTFX.

The radar

The Great Falls radar (KTFX), 129 km away, was scanning. The volume nearest the first event began at 03:32 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Jefferson

When
June 21, 8:30 PM MST
Where
Jefferson County, Jefferson City
Measured
52 kt (60 mph)
Reported by
TRAINED SPOTTER
Coordinates
46.383, -112.017

A severe thunderstorm produced a 60 mph wind gust in Jefferson City.

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.

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, June 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: 5300545.