731  
FXUS65 KGGW 270917  
AFDGGW  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE GLASGOW MT  
317 AM MDT FRI JUN 27 2025  
   
DISCUSSION  
 
KEY MESSAGES:  
 
1)ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE AGAIN THIS  
AFTERNOON AND EVENING.  
 
2) UPPER RIDGING WILL GUIDE WARM AND DRY WEATHER CONDITIONS OVER  
THE REGION THIS WEEKEND.  
 
3) UNSETTLED WEATHER CONDITIONS ARE POSSIBLE AGAIN BY THE MIDDLE  
OF NEXT WEEK.  
 
WEATHER PATTERN OVERVIEW:  
 
ISOLATED SHOWERS AND THUNDERSTORMS ARE AGAIN EXPECTED THIS  
AFTERNOON AND EVENING, ESPECIALLY SOUTH OF THE MISSOURI RIVER.  
WHILE HREF SHOWS SOME STRONGER UPDRAFT HELICITY UPSTREAM OF THE  
CWA TO THE WEST, ACROSS NE MONTANA MAINLY GENERAL THUNDER RISK IS  
EXPECTED.  
 
ENSEMBLES SHOW UPPER RIDGING BUILDING OVER THE WESTERN US THIS  
WEEKEND, WHICH LOOKS TO EXTEND INTO MONTANA. THIS WILL BE THE THE  
DRIVER OF SEASONABLY WARM BUT MAINLY DRY WEATHER CONDITIONS.  
 
TOWARD THE MIDWEEK, ENSEMBLES BEGIN TO SHOW THE UPPER RIDGING  
BEGINNING TO TRANSLATE EAST OF THE REGION WHICH MAY BRING RENEWED  
CHANCES FOR SHOWERS AND THUNDERSTORMS.  
 
FORECAST CONFIDENCE & DEVIATIONS:  
 
NBM WAS FOLLOWED FOR THE FORECAST PERIOD WITH LITTLE DEVIATION  
NEEDED AT THIS TIME. CONFIDENCE IS LOW ON THUNDERSTORMS THIS  
AFTERNOON AND EVENING DUE TO HIT OR MISS NATURE OF THE CONVECTION.  
OTHERWISE, HIGHER CONFIDENCE EXISTS ON THE WARM AND DRY WEEKEND  
WEATHER.  
 
 
   
AVIATION  
 
LAST UPDATED: JUNE 27, 2025 AT 0900Z.  
 
FLIGHT CATEGORY: VFR.  
 
DISCUSSION: PARTLY TO MOSTLY CLOUDY SKIES ARE EXPECTED TODAY,  
THOUGH ISOLATED SHOWERS AND THUNDERSTORMS SHOULD REMAIN MOSTLY  
AWAY FROM AREA TERMINALS THROUGH AT LEAST THE AFTERNOON. A STRAY  
SHOWER OR THUNDERSTORM MIGHT APPROACH KSDY TO KGDV AFTER 00Z  
SATURDAY.  
 
WINDS: LIGHT AND VARIABLE THIS MORNING, BECOMING WEST TO NORTHWEST  
AT 5 TO 15 KTS THIS AFTERNOON AND EVENING.  
 
 
   
GGW WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
WEATHER.GOV/GLASGOW  
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