672
FXUS65 KGGW 052007
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
207 PM MDT MON MAY 5 2025
DISCUSSION
KEY MESSAGES:
1) GRADUAL DRYING IS EXPECTED INTO WEDNESDAY. THE SOUTHEAST ZONES
WILL BE THE LAST TO DRY AS A SLIGHT RESURGENCE OF SHOWERS OCCURS
LATE TONIGHT FROM THE SOUTH.
2) WARMER TEMPERATURES RETURN FOR WEDNESDAY AND THURSDAY WITH HOT
CONDITIONS EXPECTED THIS WEEKEND WITH HIGHS POSSIBLY NEAR 90 ON
SUNDAY.
3) WEAK DISTURBANCE COULD BRING SCATTERED SHOWERS & THUNDERSTORMS
THURSDAY NIGHT, MAINLY SOUTH OF THE MISSOURI RIVER.
WEATHER PATTERN OVERVIEW:
THE UPPER PATTERN IS COMPLICATED WITH AN UPPER TROUGH OVER WESTERN
MONTANA WEAKENING OVER THE NEXT COUPLE DAYS. A RAIN BAND OVER THE
CWA EARLY THIS AFTERNOON WILL CONTINUE WEAKENING. SOME RESURGENCE
IS EXPECTED OVER SOUTHEAST MONTANA LATE TONIGHT INTO EARLY
TUESDAY FROM WYOMING.
AN UPPER RIDGE WILL GRADUALLY BUILD OVER THE AREA BUT A WEAK
DISTURBANCE WILL MOVE EAST THROUGH THURSDAY NIGHT THAT BRINGS A
CHANCE OF SHOWERS AND THUNDERSTORMS, MAINLY SOUTH OF THE MISSOURI
RIVER.
THE UPPER RIDGE SURGES NORTH AGAIN OVER THE WEEKEND BEFORE A
PACIFIC TROUGH MOVES IN EARLY NEXT WEEK. THIS WILL BRING TEMPS
BACK INTO THE 80S TO NEAR 90.
FORECAST CONFIDENCE & DEVIATIONS:
GENERALLY WENT WITH NBM ON ALL ELEMENTS, HOWEVER BLENDED IN SOME
NEAR-TERM MODELS WITH POPS THROUGH TONIGHT. TFJ
AVIATION
LAST UPDATED: 1930Z
FLIGHT CAT RANGE: A MIX OF VFR AND MVFR INTO EARLY EVENING THEN
MAINLY VFR. HOWEVER, MVFR CEILINGS ARE EXPECTED TO BE JUST SOUTH
OF THE AREA AND COULD TEMPORARILY VISIT MOSTL LIKELY KGDV THROUGH
TUESDAY.
DISCUSSION: LOW CLOUDS AND SHOWERS WILL PUSH TO OUR SOUTH THIS
EVENING BUT LINGER THERE THROUGH TUESDAY. NORTH WINDS WILL
DECREASE TONIGHT THEN INCREASE SLIGHTLY TUESDAY FROM THE EAST. TFJ
GGW WATCHES/WARNINGS/ADVISORIES
LAKE WIND ADVISORY UNTIL 9 PM MDT THIS EVENING FOR CENTRAL AND
SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-GARFIELD-MCCONE-
PETROLEUM.
WEATHER.GOV/GLASGOW
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