Thunderstorm Wind, Prairie
- When
- July 2, 10:00 PM MST
- Where
- Prairie County, 25 mi E of Terry
- Measured
- 61 kt (70 mph) estimated gust
- Reported by
- TRAINED SPOTTER
- Coordinates
- 46.783, -104.767
Damaging Wind in Montana, July 2, 2003
A few small trees down.
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
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 happened
The episode as NWS GGW wrote it up.
A few small trees down.
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 Jul 2, 7:40 PM MST, 2 hours 20 minutes earlier.
Area forecast discussion, Jul 2, 7:40 PM MST, 2 hours 20 minutes before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
840 PM MDT WED JUL 02 2003
.SHORT TERM...
SHORTWAVE ENTERING PETROLEUM AND GARFIELD COUNTIES HAS BROUGHT
SCATTERED THUNDERSTORMS TO GARFIELD COUNTY. THE AREA IS ALONG A 700
MB THETA-E RIDGE. SW FLOW ALOFT WILL ALLOW STORMS TO MOVE NE. WILL
INCREASE THUNDERSTORM COVERAGE TO SCATTERED OVER GARFIELD AND MCCONE
COUNTIES IN UPDATE. WILL KEEP ISOLATED WORDING IN MOST AREAS AND
INCLUDE A FEW AREAS LIKE WIBAUX AND PHILLIPS COUNTY THAT HAVE DRY
FORECAST AT THE MOMENT. ENOUGH INSTABILITY ON GGW SOUNDING FOR
THUNDERSTORMS TONIGHT AND STEEP LAPSE RATE WILL ALLOW FOR SOME
DOWNBURST WINDS IN THESE STORMS. FORRESTER
FLOW ALOFT FLATTENS OUT ON THURSDAY WITH UPPER LOW CROSSING CENTRAL
CANADA. EXPECT TEMPERATURES TO COOL SLIGHTLY AS RIDGE GIVES WAY TO
TROF ACROSS NORTHERN ZONES. FLOW BECOMES MORE NORTHWEST ON FRIDAY
WITH TROF MOVING INTO ONTARIO. AIRMASS DRIES AND SUBSIDENCE
INCREASES WITH VEERING WINDS TO KEEP THREAT OF CONVECTION LOW.
STRONG LAPSE RATES TO MIX WINDS TO THE SURFACE BUT NOT QUITE STRONG
ENOUGH ALOFT TO WARRENT LAKE WIND ADVISORY. EBERT
.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY
MEDIUM RANGE MODELS NOT IN THE BEST AGREEMENT TODAY...BUT NO MAJOR
CHANGES TO THE GOING EXTENDED FORECAST. UPPER LOW CURRENTLY NEAR
ALEUTIAN ISLANDS STILL PROGGED TO SLIDE INTO BRITISH COLUMBIA AND
ALBERTA BY SATURDAY MORNING. ECMWF HOLDS UPPER LOW BACK LONGER WHICH
LEAVES MONTANA ON THE WEST SIDE OF AN UPPER RIDGE WITH SOUTHWEST
FLOW ALOFT. GFS PUSHES FRONT THROUGH BY THIS TIME WITH MUCH LOWER
HEIGHTS AND THICKNESS VALUES. CANADIAN ALSO INDICATES UPPER
LOW...BUT WEAKER AND A BIT FARTHER NORTH. DUE TO RANGE OF
SOLUTIONS...WILL NOT STRAY MUCH FROM INHERITED FORECAST AND SEE WHAT
MODELS SETTLE ON. WILL ALSO LEAVE INHERITED POPS THAT SIDE WITH
GFS SOLUTION SATURDAY MORNING THROUGH SUNDAY AS IS. BY MONDAY...FLOW
BECOMES NORTHWEST PER GFS AND WEST PER ECMWF. GFS STILL TRYING TO
STRENGTHEN FOUR CORNERS HIGH BY THE END OF THE PERIOD...NUDGING
RIDGE NORTH INTO MONTANA. WARMER TEMPERATURES WITH DRY FORECAST
LOOKS GOOD. STROOZAS
KGGW BBE 055/081 052/081 055/083 90200001
EEBB 055/077 053/079 054/083 057/088 9631000000
KGDV BBB 059/083 054/082 056/087 90220000
EEBB 056/079 053/082 055/086 058/089 9633000000
.GGW...NONE.Hazardous weather outlook, Jul 2, 5:01 AM MST, 16 hours 59 minutes before
MTZ016>027-059>062-031200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 601 AM MDT WED JUL 2 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA .DAY ONE... SCATTERED MORNING SHOWERS AND THUNDERSTORMS WILL QUICKLY EXIT THE AREA BY MID-MORNING. ISOLATED THUNDERSTORMS ARE EXPECTED TO REDEVELOP ACROSS MUCH OF THE AREA THIS EVENING AND OVERNIGHT. SOME OF THE THUNDERSTORMS THIS EVENING MAY BECOME STRONG ACROSS SOUTHERN PORTIONS OF THE AREA...BUT NO SEVERE WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. DNS
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 thunderstorm wind. Local standard time, as filed.
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
- Rip Current in Florida, July 2, 2003
- Damaging Wind in Minnesota, July 2, 2003
- Hail and Damaging Winds in North Dakota, July 2, 2003
- Flood in Florida, July 2, 2003
- Hail and Damaging Wind in Montana, July 2, 2003
- Damaging Wind in South Carolina, July 2, 2003
- Tornadoes and Flash Flooding in North Carolina, July 2, 2003
- Tornado in South Carolina, July 2, 2003
- Lightning Strike in Florida, July 2, 2003
- Hail and Damaging Winds in Minnesota, July 2 to 3, 2003
- Tornado in North Carolina, July 2, 2003
- Tornado and Flash Flooding in Minnesota, July 2, 2003
More
Every storm in Montana in 2003Every state in 2003This day in weather historyWarnings in Montana, July 2003
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: 5330389.