3 thunderstorm wind, 2 hail, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
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.
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, 7:05 PM MST, 4 hours 55 minutes earlier.
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
805 PM MDT WED AUG 6 2003
.SHORT TERM...TONIGHT
CURRENT FORECAST APPEARS TO BE IN VERY GOOD SHAPE. WILL UPDATE ONLY
TO UP THE POPS IN VALLEY COUNTY TO CHANCE GIVEN THE LINE OF STORMS
THAT ARE READY TO MOVE IN. HAVE ALSO TWEAKED THE WIND DOWN A BIT IN
SOME AREAS. WILL LEAVE LAKE WIND ADVISORY UP...BUT CAN SEE
POTENTIALLY TAKING IT DOWN LATER THIS EVENING AS WIND BEHIND THE
LINE MUCH LESS THAN AHEAD OF IT. SEVERE STORMS WILL HAVE A TUFFER
TIME MAINTAINING THEMSELVES AS THEY MOVE EAST INTO A LESS FAVORABLE
ENVIRONMENT. VALONE
OVERALL LONGWAVE PATTERN DOESNT CHANGE MUCH WITH UPPER LOW OFF WEST
COAST BEING REINFORCD...AN STRRONG UPPER HIGH OVER SW STATES
STRONGLY RIDGING NORTH AND NOT MOVING. THEREFORE WILL RAISE HIGHS
AND GO WITH A PERSISTENTLY HOT FORECAST. WILL KEEP BROADBRUSH
ISOLATED THUNDERSTORMS FRIDAY. ALL MOS PERSISTENTLY TOO
CLOUDY...COOL...AND WET FOR THIS PATTERN AND TIME OF YEAR. SIMONSEN
.LONG TERM...FRI NIGHT THRU MON...
SAME AS ABOVE. MORE OF THE SAME AND HAVE RAISED TEMPERATURES WITH
GENERALLY HOT AND DRY WEATHER. SIMONSEN
KGGW BBB 066/096 065/097 063/095 78302220
BBBB 063/095 062/095 062/091 062/088 8200000000
KGDV BBB 065/099 066/100 065/097 78022220
BBBB 065/097 064/096 063/091 063/090 8200000000
.GGW...LAKE WIND ADVISORY FOR FORT PECK LAKE TONIGHT.MTZ016>027-059>062-072315- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 514 PM MDT WED AUG 6 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA DAY ONE... A LAKE WIND ADVISORY REMAINS IN EFFECT FOR FORT PECK LAKE THIS TONIGHT. REFER TO GTFNPWGGW OR WWUS75 KGGW FOR FURTHER INFORMATION. ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE OVER NORTHEAST MONTANA BEGINNING THIS EVENING IN WESTERN SECTIONS...PHILLIPS AND PETROLEUM COUNTIES...SPREADING TO EASTERN SECTIONS OF NORTHEAST MONTANA LATE TONIGHT. THE GREATEST THREAT FROM THE STORMS WILL BE STRONG GUSTY WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN... MOIST SOUTHWEST FLOW ALOFT WILL CONTINUE TO BRING THE SLIGHT RISK FOR SEVERE THUNDERSTORMS TO NORTHEAST MONTANA ON THURSDAY. STRONG GUSTY WINDS AND LARGE HAIL WILL REMAIN THE BIGGEST THREAT FROM ANY SEVERE STORMS THAT DEVELOP IN THE AREA ON THURSDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. SIMONSEN
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
0842 PM MDT WED AUG 06 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0835 PM 46 SW GLASGOW MT 60 MPH WIND GUST
08/06/03 VALLEY
VALONEPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
0930 PM MDT WED AUG 06 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0851 PM 35 SW GLASGOW MT 85 MPH TSTORM WIND
08/06/03 VALLEYPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
0945 PM MDT WED AUG 06 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0935 PM GLASGOW MT 70 MPH TSTORM WIND
08/06/03 VALLEYPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1006 PM MDT WED AUG 06 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1002 PM JORDAN MT 77 MPH TSTORM WIND
08/06/03 GARFIELDMTZ016>027-059>062-070500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GLASGOW MT 1040 AM MDT WED AUG 6 2003 ...SEVERE THUNDERSTORM WATCH FOR PORTIONS OF EASTERN MONTANA ALLOWED TO EXPIRE AT 10 PM... THUNDERSTORMS HAVE WEAKENED BELOW SEVERE LEVELS ACROSS MOST OF THE AREA. ALTHOUGH ISOLATED SEVERE STORMS REMAIN POSSIBLE...AREAL COVERAGE IS NOT EXPECTED TO REQUIRE AN ADDITIONAL WATCH. VALONE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
1101 PM MDT WED AUG 06 2003
TIME(MDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1039 PM 13 E JORDAN MT 60 MPH TSTORM WIND
08/06/03 GARFIELDThe Glasgow radar (KGGW), 72 km away, was scanning. The volume nearest the first event began at 07:02 UTC.
3 thunderstorm wind, 2 hail. Local standard time, as filed.
3 inches of rain fell in a thunderstorm at Hell Creek Recreation Area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2003Every state in 2003This day in weather historyWarnings in Montana, August 2003
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: 5374807, 5374808, 5374811, 5374809, 5374810.