256
FXUS65 KGGW 251939
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
139 PM MDT SUN OCT 25 2026
KEY MESSAGES
- BELOW AVERAGE TEMPERATURES ARE LIKELY TO PERSIST THROUGHOUT THE
WEEK.
- LIGHT RAIN IS POSSIBLE ALONG THE YELLOWSTONE RIVER FROM TERRY TO
SIDNEY AND POINTS SOUTHEAST TONIGHT.
- THERE IS A DECENT CHANCE OF RAIN ON MONDAY INTO TUESDAY.
DISCUSSION
A TROUGH IS EXPECTED TO AFFECT THE SOUTHEAST TONIGHT AND BRING
SOME RAIN AND SNOW SHOWERS. THERE IS A DECENT CHANCE THIS WILL
ACCUMULATE LESS THAN ONE TENTH OF AN INCH OF PRECIPITATION. SOME
GUSTY SOUTHEAST WINDS ARE EXPECTED TOMORROW.
THE LATEST GFS ENSEMBLE SHOWS A TROUGH BRINGING MORE PRECIPITATION
ON TUESDAY INTO WEDNESDAY. THERE IS A BETTER CHANCE OF RECEIVING
MORE THAN ONE TENTH OF AN INCH OF PRECIPITATION IN THIS TIME
PERIOD IN THE WESTERN HALF OF THE AREA, AND LOWER CHANCES IN THE
EAST.
FORECAST CONFIDENCE & DEVIATIONS:
NO DEVIATIONS FROM THE MAIN FORECAST.
THERE IS MODERATE CONFIDENCE OF PRECIPITATION AMOUNTS TONIGHT AND
PRECIPITATION ON MONDAY NIGHT INTO TUESDAY.
AVIATION
LAST UPDATED: SUNDAY OCTOBER 25, 2026 AT 1830Z.
FLIGHT CAT RANGE: VFR - MVFR.
DISCUSSION: FAIR CONDITIONS WILL CONTINUE THROUGH THIS EVENING. A
LOW PRESSURE SYSTEM SOUTH OF THE AREA WILL INFLUENCE THE SOUTHEAST
WITH SOME RAIN AND SNOW SHOWERS AFTER MIDNIGHT. THERE IS LOW TO
MODERATE CONFIDENCE OF MVFR CEILINGS FOR KGDV AND KSDY AFTER 17Z.
WIND: MAINLY EAST AT 10 TO 18 KNOTS.
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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