678
FXUS65 KGGW 220853
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
153 AM MST SAT NOV 22 2025
DISCUSSION
KEY MESSAGES:
- WARM AND DRY WEATHER IS EXPECTED TODAY THROUGH SUNDAY.
- SIGNIFICANT PATTERN CHANGE STARTS MONDAY WITH COLDER
TEMPERATURES AND CHANCES FOR ACCUMULATING SNOW MONDAY NIGHT AND
TUESDAY MORNING.
- WINTRY TRAVEL IMPACTS POSSIBLE FOR HOLIDAY TRAVELERS
THANKSGIVING WEEKEND.
WEATHER PATTERN OVERVIEW:
MONTANA WILL BE IN AN UPPER RIDGE WITH WARM AND DRY WEATHER
THROUGH SUNDAY. SUNDAY IS EXPECTED TO BE THE WARMEST DAY WITH
HIGHS IN THE 50S IN MOST AREAS.
UPPER TROUGH MOVES THROUGH THE REGION ON MONDAY WITH A COLD FRONT,
GUSTY WEST WINDS AND CHANCES FOR LIGHT RAIN FOLLOWED BY CHANCES
FOR SNOW AS MUCH COLDER AIR MOVES INTO THE AREA. CHANCES FOR
SNOW WILL LINGER INTO TUESDAY MORNING IN THE EAST. NBM
PROBABILITIES FOR ONE OR MORE INCHES OF SNOW MONDAY AFTERNOON
THROUGH TUESDAY MORNING ARE BETWEEN 10 AND 20 PERCENT IN MOST
AREAS WITH A 30 PERCENT CHANCE OF ONE INCH OR MORE SNOW AROUND
ZORTMAN, OPHEIM, WIBAUX, AND OVER THE BIG SHEEP MOUNTAINS.
WEDNESDAY LOOKS DRY AT THIS POINT WITH HIGHS MAINLY IN THE 20S
NORTH AND UPPER 20S TO MID 30S SOUTH.
MODELS AND ENSEMBLES ARE POINTING TOWARDS MORE SNOW FOR
THANKSGIVING AND BEYOND WITH COLDER TEMPERATURES FOR NEXT WEEKEND.
THERE ARE WIDE VARIATIONS IN PRECIPITATION POTENTIAL IN THE
MODELS AND ENSEMBLES AT THIS TIME.
FORECAST CONFIDENCE & DEVIATIONS:
NO DEVIATIONS FROM NBM.
THERE IS HIGH CONFIDENCE OF WARM AND DRY WEATHER THROUGH SUNDAY
AND TEMPERATURES DROPPING TO BELOW NORMAL ON TUESDAY AND BEYOND.
THERE IS MODERATE CONFIDENCE OF PRECIPITATION OCCURRING AT TIMES
STARTING ON MONDAY WITH LOW CONFIDENCE ON ACCUMULATIONS.
AVIATION
LAST UPDATE: 0900Z
FLIGHT CAT RANGE: VFR
DISCUSSION: THERE WILL BE SOME MID AND HIGH CLOUDS AT TIMES TODAY
AND TONIGHT WITH CLEAR SKIES IN BETWEEN.
WIND: EXPECT WINDS TO BE UNDER 10 KTS THROUGH THE PERIOD AND
GENERALLY WEST TO SOUTHWEST IN DIRECTION, THOUGH TERRAIN
INFLUENCES COULD MAKE WINDS A BIT MORE VARIABLE.
EQUIPMENT: KOLF AND SDY AMD NOT SKED UNTIL REPAIRS CAN BE MADE.
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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