036
FXUS65 KGGW 190857
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
157 AM MST FRI DEC 19 2025
DISCUSSION
KEY MESSAGES:
- A WINTER WEATHER ADVISORY HAS BEEN ISSUED FOR MAINLY FREEZING
RAIN THAT IS POSSIBLE NORTH OF A MALTA TO CIRCLE TO GLENDIVE
LINE TONIGHT INTO EARLY FRIDAY.
- TEMPERATURES TURN MILDER TODAY, THEN DROP TONIGHT AND SATURDAY.
GUSTY WEST TO NORTHWEST WINDS ARE EXPECTED WITH A COLD FRONT
TODAY. A HIGH WIND WARNING WILL BE ISSUED FOR SW PHILLIPS COUNTY
TODAY.
- A SLIGHTLY WARMER THAN NORMAL AND LESS UNSETTLED PATTERN IS
FAVORED NEXT WEEK BUT A WEAK SYSTEM MAY BRING SOME WINTRY PRECIP
SUNDAY NIGHT.
WEATHER PATTERN OVERVIEW:
A WARM FRONT IS CURRENTLY MOVING ACROSS NE MONTANA WITH AREAS OF
LIGHT MIXED PRECIPITATION AND DRIFTING SNOW. ENOUGH OF A
POSSIBILITY FOR FREEZING RAIN CONTINUES THIS MORNING MAINLY NE OF
A LINE FROM GLASGOW TO GLENDIVE THAT THE WINTER WEATHER ADVISORY
WILL CONTINUE UNTIL 11 AM THIS MORNING. A GLAZE UP TO 0.05" IS
POSSIBLE WHICH WOULD MAKE ROADS AND SIDEWALKS VERY SLICK.
THE SYSTEM MOVES TO THE EAST THIS MORNING WITH WARMER TEMPERATURES
TODAY. STRONG WEST WINDS WILL DEVELOP THIS MORNING OVER THE LITTLE
ROCKY MOUNTAINS OF SW PHILLIPS COUNTY WHERE THE HREF HAS GUSTS
REACHING 60 MPH. WILL ISSUE A HIGH WARNING THERE STARTING AT 5 AM
AND CONTINUING THROUGH 5 PM TODAY. THE STRONG WEST WINDS WILL
SPREAD EAST DURING THE DAY TODAY WITH GUSTS TO AROUND 50 MPH IN
MANY AREAS WHICH IS BELOW HIGH WIND WARNING CRITERIA OF 58 MPH
GUSTS. A COLD FRONT WILL MOVE IN DURING THE AFTERNOON THAT WILL
BRING FALLING AFTERNOON TEMPERATURES FROM THE NORTH.
LOWS BELOW ZERO SATURDAY MORNING IN THE NORTH WILL BE BORDERLINE
FOR A COLD WEATHER ADVISORY.
WARMER TEMPERATURES RETURN FOR SUNDAY AND MONDAY. THERE WILL BE
SLIGHT CHANCES FOR MIXED PRECIPITATION SUNDAY NIGHT. 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 WINDS
WITH THE NBM90 TODAY.
HIGH CONFIDENCE THAT IT WILL BE WINDY TODAY BUT OUTSIDE OF THE
LITTLE ROCKIES THE CONFIDENCE IS TOO LOW TO ISSUE A HIGH WIND
WARNING. LOW CONFIDENCE OF PRECIPITATION CHANCES THIS MORNING.
AVIATION
UPDATED: 0900Z
FLIGHT CATEGORY: VFR.
DISCUSSION: A WARM FRONT WILL BRING IN MID LEVEL CLOUDS, SOME
LIGHT SNOW AND THE POSSIBILITY OF FREEZING RAIN THIS MORNING
BEFORE MOVING INTO THE DAKOTAS BY LATE MORNING.
WINDS: EAST TO SE WINDS 5 TO 15 KNOTS EARLY WILL VEER TO THE SOUTH
AND SW AT 15 TO 25 KNOTS THIS MORNING AND WEST 15 TO 30 KNOTS WITH
GUSTS TO 40 KNOTS BY 19Z (NOON MST). WINDS WILL BECOME WNW THIS
AFTERNOON AND DIMINISH TO 10 TO 15 KNOTS THIS EVENING.
LLWS CAN BE EXPECTED AT TIMES THIS MORNING.
GGW WATCHES/WARNINGS/ADVISORIES
WINTER WEATHER ADVISORY UNTIL 5 AM MST EARLY THIS MORNING FOR
CENTRAL AND SOUTHEAST PHILLIPS-NORTHERN PHILLIPS.
WINTER WEATHER ADVISORY UNTIL 11 AM MST THIS MORNING FOR CENTRAL
AND SOUTHERN VALLEY-DANIELS-DAWSON-EASTERN ROOSEVELT-MCCONE-
NORTHERN VALLEY-RICHLAND-SHERIDAN-WESTERN ROOSEVELT.
HIGH WIND WARNING FROM 5 AM EARLY THIS MORNING TO 5 PM MST THIS
AFTERNOON FOR SOUTHWEST PHILLIPS.
WEATHER.GOV/GLASGOW
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