984
FXUS65 KGGW 312046
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
146 PM MST WED DEC 31 2025
DISCUSSION
KEY MESSAGES:
1) MILDER TEMPERATURES WILL CONTINUE OVER THE NEXT COUPLE OF DAYS.
2) LOW CLOUDS AND FREEZING FOG TONIGHT INTO TOMORROW.
WEATHER PATTERN OVERVIEW:
A LARGE HIGH AMPLITUDE RIDGE WILL CONTINUE OVER THE WESTERN U.S.
AND INFLUENCE NE MONTANA WITH MILD AND DRY WEATHER CONDITIONS.
THERE WILL BE A SHARP GRADIENT ALONG A BACKDOOR COLD FRONT WITH
MUCH OF THE NORTHEAST HALF OF THE CWA SEEING LOWS EACH DAY IN THE
SINGLE DIGITS TO TEENS AND HIGHS IN THE 20S AND 30S. MEANWHILE,
LOWS OVER THE LITTLE ROCKIES AND SOUTH OF FORT PECK LAKE WILL BE
IN THE 20S AND LOW 30S WITH HIGHS IN THE MID 30S AND 40S EACH DAY.
THIS WILL ALLOW FOR SNOWPACK TO MELT AND DRAG THE MOISTURE UP
OVER THE FRONT FOR CONTINUED FREEZING FOG AND LOW STRATUS. THOUGH
EXTENT, INTENSITY, AND TIMING BEYOND TONIGHT ARE NOT WELL KNOWN.
FORECAST CONFIDENCE & DEVIATIONS:
BLENDED HIRES GUIDANCE FOR DAY 1 WINDS. RELIED HEAVILY ON AWCGFA
VISIBILITIES FOR FOG GRIDS.
AVIATION
AVIATION
LAST UPDATED: 2030Z
FLIGHT CAT RANGE: VFR - AIRPORT SHUTDOWN
DISCUSSION: FLUCTUATING CEILINGS AND VISIBILITY WITH FREEZING FOG
THROUGH THE TAF CYCLE. FLIGHT CATS COULD LOWER DOWN TO NEAR
AIRPORT SHUTDOWN AT TIMES. INTENSITIES AND PLACEMENT IS HIGHLY
VARIABLE AND LOW CONFIDENCE CONTINUES IN THESE ELEMENTS.
WIND: LIGHT AND SLOWLY VEERING FROM WEST TO EAST BEHIND THE
FRONT TONIGHT. BECOMING VARIABLE EARLY TOMORROW MORNING.
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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