Thunderstorm Wind, Valley
- When
- July 13, 6:27 PM MST
- Where
- Valley County, Glasgow
- Measured
- 56 kt (64 mph) estimated gust
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 48.200, -106.633
Damaging Winds in Montana, July 13, 2003
2 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
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 Jul 13, 2:00 PM MST, 4 hours 27 minutes earlier.
Area forecast discussion, Jul 13, 2:00 PM MST, 4 hours 27 minutes before
NORTHEAST MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
300 PM MDT SUN JUL 13 2003
.SHORT TERM...TONIGHT THROUGH TUESDAY
A SHORTWAVE AND ASSOCIATED COLD FRONT CONTINUES TO MOVE EASTWARD
ACROSS WESTERN MONTANA AND WILL BRING ANOTHER CHANCE FOR
THUNDERSTORMS ALONG WITH GUSTY WEST AND NORTHWEST WINDS NEAR MIDNIGHT
TONITE AND INTO THE MORNING HOURS ON MONDAY. THIS FEATURE CONTINUES
TO BE SOMEWHAT SLOWER AND SLIGHTLY STRONGER THAN EARLIER FORECAST.
HAVE INCLUDED CHANCE POPS MOST OF CWFA FOR LATE TONIGHT INTO MONDAY
MORNING WITH RAPID CLEARING DURING THE AFTERNOON HOURS. SURFACE HIGH
WILL CONTINUE TO BUILD RAPIDLY EASTWARD OVER REGION LATER
TOMORROW AND EAST OF AREA ON TUESDAY. VERY LITTLE DECOUPLING
EXPECTED DUE TO FRONTAL SYSTEM TOMORROW MORNING BUT COOLER AIRMASS
SHOULD ALLOW FOR LOWER MORNING TEMPS AS FORECAST. BETTER DECOUPLING
MONDAY NIGHT DUE TO BUILDING HIGH PRESSURE AREA. WARMER TUESDAY
UNDER DRY AND STABLE AIRMASS. LYNN
.LONG TERM...TUESDAY NIGHT THROUGH THE DAY ON FRIDAY...THE NEWEST
GFS RUN IS MORE CLOSELY ALIGNED WITH ECMWF AND THUS PROVIDED A MORE
REASONABLE SOLUTION FOR MID TO LATE WEEK. AS THE PACIFIC TROF
TRANSLATES EAST THE UPPER FLOW BECOMES MORE CYCLONIC AND USHERS IN A
DECENT SHORTWAVE FOR WEDNESDAY. THIS WAVE WILL MOVE TO THE NORTHEAST
PROVIDING A CHANCE FOR CONVECTION INTO THE EVENING HOURS. AS THE
MAIN UPPER LOW MOVES THROUGH SOUTHERN CANADA...WE WILL HAVE ANOTHER
CHANCE VERY EARLY ON THURSDAY. MOST OF THE ENERGY SHOULD REMAIN TO
THE NORTH IN SASK. BY LATE IN THE DAY ON THURSDAY THE AREA WILL BE
UNDER THE INFLUENCE OF SLIGHT RIDGING AS THE MAIN TROF AXIS SLIDES
WELL EAST. THUS THE GOING DRY FORECAST FOR LATER IN THE WEEK STILL
LOOKS GOOD. TEMPERATURES WILL LIKELY BE ABOVE GFS...GIVEN THE TOO
FAR SOUTH PATTERN IN THE 00Z RUN... THIS IS WELL REFLECTED IN THE
GOING FORECAST. ADOLPHSON
KGGW BBT 057/080 054/087 058/091 77400003
BUBB 054/088 055/088 057/092 057/092 8330000000
KGDV BBT 061/083 056/087 058/091 77400033
BUBB 056/090 056/089 057/091 057/091 8330000000
.GGW...RED FLAG WARNING FOR THIS EVENING FOR ZONES
119/120/121/122.Hazardous weather outlook, Jul 13, 5:00 AM MST, 13 hours 27 minutes before
MTZ016>027-059>062-141200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GLASGOW MT 600 AM MDT SUN JUL 13 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST MONTANA .DAY ONE... A RED FLAG WARNING IS IN AFFECT TODAY THROUGH THIS EVENING TO FIRE DISTRICTS 119...120...121 AND 122. LOW RELATIVE HUMIDITIES...GUSTY WEST WINDS OF 15 TO 30 MPH...HIGH FIRE DANGER AND THE POSSIBILITY OF DRY LIGHTNING EXISTS THROUGH THIS EVENING. SEE GTFRFWGGW OR WWUS85 KGGW FOR DETAILS. .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. TFJ
The radar
The Glasgow radar (KGGW), 1 km away, was scanning. The volume nearest the first event began at 01:29 UTC.
Event by event
2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Richland
- When
- July 13, 10:20 PM MST
- Where
- Richland County, Sidney
- Measured
- 52 kt (60 mph) estimated gust
- Reported by
- TRAINED SPOTTER
- Coordinates
- 47.700, -104.150
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
- Hail in Arkansas, July 13, 2003
- Flash Flooding and Hail in Georgia, July 13, 2003
- Flood in Indiana, July 13 to 29, 2003
- Flash Flooding and Hail in North Carolina, July 13, 2003
- Tornado in North Dakota, July 13, 2003
- Hail and Damaging Winds in Mississippi, July 13, 2003
- Tornado in South Carolina, July 13, 2003
- Tornado in South Carolina, July 13, 2003
- Hail in Michigan, July 13, 2003
- Tornado and Hail in South Carolina, July 13, 2003
- Hail and Damaging Winds in Mississippi, July 13, 2003
- Hail in South Carolina, July 13, 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: 5330466, 5330467.