813
FXUS65 KGGW 060937
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
237 AM MST THU NOV 6 2025
DISCUSSION
KEY MESSAGES:
- WARM AND WINDY TODAY WITH A HIGH WIND WARNING FOR SW PHILLIPS
COUNTY.
- LAKE WIND ADVISORY FOR FORT PECK LAKE IS IN EFFECT FROM 8 AM
TODAY THROUGH MIDNIGHT TONIGHT.
- COLDER CONDITIONS EXPECTED THIS WEEKEND WITH CHANCES FOR LIGHT
RAIN AND LIGHT SNOW FRIDAY AND FRIDAY NIGHT.
WEATHER PATTERN OVERVIEW:
UPPER RIDGE OVER EASTERN MONTANA OVERNIGHT WILL MOVE TO THE EAST
TODAY. WARM AIR ALOFT WILL MIX DOWN TODAY WITH A WARM FRONT AND GUSTY
WEST WINDS. 850 MB WINDS WILL PEAK AROUND 50 KNOTS BETWEEN 12Z
AND 15Z THIS MORNING AND THEN DIMINISH DURING THE DAY. MORNING
INVERSIONS WILL LIKELY LIMIT THE MIXING OF THE STRONGEST WINDS
EXPECT IN THE HIGHER ELEVATIONS OF THE LITTLE ROCKIES. WILL ISSUE
A HIGH WIND WARNING FOR 5 AM TO 5 PM TODAY FOR SW PHILLIPS COUNTY
AND CANCEL THE WATCH FOR THE REMAINDER OF PHILLIPS COUNTY. WILL
ALSO KEEP THE LAKE WIND ADVISORY IN EFFECT FOR FORT PECK LAKE
TODAY.
A COLD FRONT TONIGHT WILL BRING COOLER TEMPERATURES FOR FRIDAY
ALONG WITH CHANCES FOR LIGHT RAIN AND LIGHT SNOW. ANOTHER COLD
FRONT FRIDAY EVENING WILL BRING COLDER TEMPERATURES FOR THE
WEEKEND. LIGHT RAIN AND LIGHT SNOW IS ALSO EXPECTED FRIDAY NIGHT.
MOST OF THE MODELS AND ENSEMBLE CURRENTLY HAVE A LIGHT DUSTING OF
SNOW POSSIBLE IN MOST AREAS FRIDAY NIGHT. EC ENSEMBLE MEAN
HAS UP TO AN INCH ALONG THE CANADIAN BORDER WHILE THE GFS
ENSEMBLE MEAN HAS UP TO 2 INCHES IN THAT AREA.
SATURDAY WILL BE A COLD DAY IN THE 20S IN THE NE AND IN THE 30S IN
MOST AREAS AND SATURDAY NIGHT WILL BE A COLD NIGHT WITH LOWS IN
THE SINGLE DIGITS IN THE NE AND IN THE TEENS IN MOST AREAS.
UPPER RIDGE BUILDS INTO MONTANA EARLY NEXT WEEK WITH WARMER
TEMPERATURES.
FORECAST CONFIDENCE & DEVIATIONS:
BLENDED IN THE NBM 90 FOR WINDS TODAY AND FRIDAY EVENING. NO
CHANGES TO NBM OTHERWISE.
HIGH CONFIDENCE ON LAKE WIND FORECAST TODAY. MODERATE CONFIDENCE
IN HIGH WIND WARNING FOR SW PHILLIPS COUNTY. LOW CONFIDENCE ON
THE CHANCES FOR LIGHT SNOW FRIDAY AND FRIDAY NIGHT,
AVIATION
UPDATED: 0900Z
FLIGHT CATEGORY: VFR TODAY AND A MIX OF VFR AND MVFR TONIGHT.
BKN-OVC MID CLOUDS EARLY WILL CLEAR BY MID MORNING. SKIES WILL BE
MOSTLY CLEAR THIS AFTERNOON. LOW CLOUDS WILL MOVE INTO THE NE
CORNER OF THE STATE THIS EVENING WITH AREAS OF MVFR CEILINGS.
THOSE CLOUDS COULD REACH AS FAR SOUTH AS KSDY AND KOLF OVERNIGHT.
WINDS: VARIABLE WINDS 5 TO 10 KNOTS EARLY. A WARM FRONT WILL TURN
THE WINDS TO WEST 10 TO 15 KNOTS BETWEEN 10Z AND 12Z. WEST WINDS
WILL INCREASE TO 20 TO 25 KTS WITH GUSTS 35 KNOTS BY 18Z. WEST TO
NW WINDS WILL DIMINISH TO 10 TO 15 KNOTS THIS EVENING AND BECOME
NW 5 TO 10 KNOTS OVERNIGHT.
GGW WATCHES/WARNINGS/ADVISORIES
LAKE WIND ADVISORY FROM 8 AM THIS MORNING TO MIDNIGHT MST
TONIGHT FOR CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN
VALLEY-GARFIELD-MCCONE-PETROLEUM.
HIGH WIND WARNING UNTIL 5 PM MST THIS AFTERNOON FOR SOUTHWEST
PHILLIPS.
WEATHER.GOV/GLASGOW
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