130
FXUS65 KGGW 062220
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
320 PM MST THU NOV 6 2025
DISCUSSION
KEY MESSAGES:
- PERIODS OF GUSTY NORTHWEST WINDS CONTINUE THROUGH FRIDAY NIGHT,
A LAKE WIND ADVISORY REMAINS IN EFFECT.
- COLDER CONDITIONS EXPECTED THIS WEEKEND WITH CHANCES FOR LIGHT
RAIN AND LIGHT SNOW FRIDAY AND FRIDAY NIGHT.
WEATHER PATTERN OVERVIEW:
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 CHANGING OVER TO LIGHT SNOW IS ALSO EXPECTED
FRIDAY NIGHT. MOST OF THE MODELS AND ENSEMBLE CURRENTLY HAVE A
LIGHT DUSTING OF SNOW IN MOST AREAS LATE FRIDAY NIGHT, WITH THE
HIGH END OF ENSEMBLE GUIDANCE NEAR AN INCH ALONG THE CANADIAN
BORDER. PATCHY ICY CONDITIONS WILL BE A CONCERN TO WATCH FOR
SATURDAY MORNING EVEN IN AREAS THAT DO NOT ACCUMULATE ANY SNOW.
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.
AN UPPER RIDGE BUILDS INTO MONTANA EARLY NEXT WEEK WITH MUCH WARMER
TEMPERATURES ON MONDAY.
FORECAST CONFIDENCE & DEVIATIONS:
BLENDED IN SOME HIGH RESOLUTION AND 90TH PERCENTILE GUIDANCE
THROUGH SATURDAY THAT HAS VERIFIED WELL SO FAR FOR PERIODS OF
SOLID LAKE WIND ADVISORY CONDITIONS, WHILE THERE IS MEDIUM TO
HIGH CONFIDENCE FOR MAXIMUM GUSTS TO STAY IN THE 45-55 MPH RANGE,
SHORT OF A HIGH WIND HEADLINE. THERE IS MEDIUM CONFIDENCE IN
LITTLE TO NO SNOW ACCUMULATION THROUGH SATURDAY MORNING.
AVIATION
UPDATED: 2130Z
FLIGHT CATEGORY: VFR TO MVFR.
LOW CLOUDS WILL MOVE INTO THE NE CORNER OF THE STATE THIS EVENING
WITH AREAS OF MVFR CEILINGS BECOMING MORE WIDESPREAD OVERNIGHT
INTO FRIDAY AS A COLD FRONT MOVES THROUGH, BRINGING LIGHT RAIN
AND SNOW SHOWERS. THERE IS CURRENTLY LOW CONFIDENCE ON IFR
CEILINGS OR VISIBILITY IMPACTING THE TAF SITES.
GGW WATCHES/WARNINGS/ADVISORIES
LAKE WIND ADVISORY UNTIL 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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