451
FXUS65 KGGW 192201
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
301 PM MST FRI DEC 19 2025
DISCUSSION
KEY MESSAGES:
- AN ARCTIC FRONT IS MOVING INTO THE CWA AND WILL DROP TEMPS THIS
AFTERNOON. LOOK FOR LOW TEMPS TONIGHT NEAR THE CANADIAN BORDER
TO BE BELOW ZERO WITH WIND CHILLS 20 TO 30 BELOW. A COLD
WEATHER ADVISORY HAS BEEN ISSUED.
- TEMPS THEN GRADUALLY WARM INTO MONDAY WITH A SLIGHT CHANCE OF
WINTRY MIX MONDAY.
- A SLIGHTLY WARMER THAN NORMAL AND LESS UNSETTLED PATTERN IS
FAVORED NEXT WEEK.
WEATHER PATTERN OVERVIEW:
AN ARCTIC FRONT IS MOVING INTO THE CWA AT 2PM. TEMPS HAVE DROPPED
FROM 44 TO 19 IN JUST 2-3 HOURS SO THIS FRONT MEANS BUSINESS.
OTHERWISE, WINDS WILL PICK UP BUT WE SHOULDN'T HAVE TO WORRY TOO
MUCH ABOUT BLOWING SNOW (AS WARMER TEMPS TODAY MELTED THE TOP
LAYER). THERE WAS SIGNIFICANT BLOWING SNOW OBSERVED AT REGINA, SK
WITH 1/2SM VISIBILITY.
WITH EXPECTED WIND CHILLS TONIGHT 20 TO 30 BELOW FROM OPHEIM TO
PLENTYWOOD, WENT AHEAD AND ISSUED A COLD WEATHER ADVISORY FOR FOR
THOSE 3 ZONES.
WARMER TEMPERATURES RETURN FOR SUNDAY AND MONDAY. THERE WILL BE
SLIGHT CHANCES FOR MIXED PRECIPITATION MONDAY. OTHERWISE, NEXT
WEEK FEATURES TEMPERATURES SLIGHTLY ABOVE NORMAL WITH CHANCES FOR
PRECIPITATION MAINLY WEDNESDAY AND WEDNESDAY NIGHT.
FORECAST CONFIDENCE & DEVIATIONS:
BASICALLY STUCK WITH THE NBM ON THIS PACKAGE, BUT DID MIX NBM50
FOR TEMPS TONIGHT (TOOK THEM DOWN A BIT) AND BLENDED NBM90 WITH
WINDS THROUGH TONIGHT.
AVIATION
UPDATED: 2035Z
FLIGHT CATEGORY: VFR, SOME MVFR CLOUDS.
DISCUSSION: ARCTIC FRONT WAS MOVING SOUTHEAST THROUGH THE
AIRPORTS THIS AFTERNOON. CLOUDS AT 1-2K FT AGL WILL BE AROUND INTO
THE EARLY EVENING, OTHERWISE CONDITIONS ARE EXPECTED TO BE VFR.
WINDS: NW WINDS ARE EXPECTED TO DIMINISH TO 10 TO 15 KNOTS THIS
EVENING.
GGW WATCHES/WARNINGS/ADVISORIES
COLD WEATHER ADVISORY FROM 2 AM TO 9 AM MST SATURDAY FOR DANIELS-
NORTHERN VALLEY-SHERIDAN.
HIGH WIND WARNING UNTIL 5 PM MST THIS AFTERNOON FOR SOUTHWEST
PHILLIPS.
WEATHER.GOV/GLASGOW
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