863
FXUS65 KGGW 300807
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
207 AM MDT THU APR 30 2026
KEY MESSAGES
- A WARMING TREND IS EXPECTED OVER THE NEXT SEVERAL DAYS INTO THE
WEEKEND.
- UNSETTLED WEATHER MAY YET AGAIN EMERGE EARLY NEXT WEEK WITH
SHOWER CHANCES RETURNING TO THE FORECAST.
DISCUSSION
WEATHER PATTERN OVERVIEW:
THROUGH THE BALANCE OF THE WEEK INTO FRIDAY, EXPECT UPPER RIDGING
TO TAKE HOLD ACROSS THE REGION WITH DRY WEATHER CONDITIONS AND
WARMING TEMPERATURES. NBM MEAN TEMPERATURE GUIDANCE SUPPORTS HIGHS
ON FRIDAY WELL INTO THE 60S AND 70S.
OVER THE WEEKEND, MORE ENSEMBLE SPREAD BEGINS TO EMERGE. WHILE THE
WESTERN CONUS RIDGE WILL REMAIN IN PLACE, IT MAY EXHIBIT SOME
FLATTENING, LEAVING EASTERN MONTANA UNDER NORTHWEST FLOW ALOFT.
THIS MAY ALLOW EMBEDDED DISTURBANCES AND LIGHT SHOWER CHANCES TO
RETURN, THOUGH OTHERWISE A CONTINUATION OF MILD TEMPERATURES.
FORECAST CONFIDENCE & DEVIATIONS:
WINDS WERE NUDGED A BIT BEYOND NBM FOR THE NEAR TERM REFLECTING
CURRENT CONDITIONS AND OBSERVATIONS AND NEAR TERM TRENDS.
OTHERWISE, NBM AND ENSEMBLE CONSENSUS LEADS TO HIGH CONFIDENCE
SUPPORTING MAINLY DRY CONDITIONS INTO FRIDAY WITH WARMING
TEMPERATURES. THERE IS REDUCED CONFIDENCE ON SHOWER CHANCES THIS
WEEKEND OR EARLY NEXT WEEK WITH A GROWING SPREAD IN MODEL
SOLUTIONS.
AVIATION
UPDATED: APRIL 29, 2026 AT 0420Z.
FLIGHT CATEGORY: VFR.
DISCUSSION: BESIDES A FEW VFR CLOUDS, CONDITIONS WILL REMAIN QUIET
THROUGH TONIGHT.
WINDS: LIGHT AND VARIABLE WITH N-NW WINDS 10 KTS THIS AFTERNOON.
TFJ
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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