607
FXUS65 KGGW 250739
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
139 AM MDT WED MAR 25 2026
KEY MESSAGES
- THERE WILL BE CHANCES FOR RAIN TODAY WITH A WINTRY MIX POSSIBLE
TONIGHT AND THURSDAY.
- GUSTY WEST TO NORTHWEST WINDS ARE EXPECTED ON WEDNESDAY WITH
MUCH COLDER TEMPERATURES BY THURSDAY MORNING. A LAKE WIND
ADVISORY HAS BEEN ISSUED FOR FORT PECK LAKE FROM 10 AM THIS
MORNING THROUGH MIDNIGHT TONIGHT.
- MILD AND DRY CONDITIONS LOOK TO RETURN FOR THE WEEKEND.
DISCUSSION
WEATHER PATTERN OVERVIEW:
A CHANGE IN REGIONAL AIR MASS BEGINS NOW AS SCATTERED RAIN SHOWERS
AND SOME STRATIFORM RAINFALL MOVE INTO NORTHEAST MONTANA. AS OF
TUESDAY EVENING, MOST OF THAT FELL AS VIRGA - EVAPORATING BEFORE
IT HIT THE GROUND. BUT NOW, OVERNIGHT AND EARLY THIS MORNING
(WEDNESDAY), THAT RAIN IS REACHING THE GROUND. MOST LOCATIONS CAN
EXPECT ACCUMULATIONS 0.10 INCH OR LESS THROUGH THIS EVENING. BUT,
IT SHOULD BE NOTED, THAT LOW HUMIDITY AND GUSTY WINDS MAY RAISE
FIRE WEATHER CONCERNS TODAY, AND SOME ADJUSTMENTS TO THE GIVEN NBM
FORECAST MAY BE NECESSARY.
PLEASE ALSO NOTE, THAT SEASONALLY, OUR OFFICE HAS RESUMED ISSUING
LAKE WIND ADVISORIES FOR FORT PECK LAKE AS NEEDED. THE FIRST LAKE
WIND ADVISORY FOR 2026 IS IN EFFECT FROM 10 AM THIS MORNING
THROUGH MIDNIGHT TONIGHT. A COLD FRONT TODAY WILL BRING GUSTY WEST
TO NORTHWEST WINDS. THE WINDS WILL DIMINISH LATE TONIGHT. GUSTY
NORTH TO NORTHWEST WINDS ARE EXPECTED AGAIN THURSDAY AFTERNOON AND
EVENING AND ANOTHER LAKE WIND ADVISORY MAY BE NEEDED FOR FORT PECK
LAKE.
BEHIND THE ASSOCIATED COLD FRONT, EXPECT OVERNIGHT LOW
TEMPERATURES TO DROP DOWN INTO ANOTHER HARD FREEZE TONIGHT THROUGH
FRIDAY NIGHT, BUT ESPECIALLY ON THURSDAY NIGHT. ANY LINGERING
PRECIPITATION ON THURSDAY WOULD DEFINITELY BE SNOW, WITH SOME
LIGHT ACCUMULATIONS POSSIBLE.
BEGINNING ON FRIDAY, WARM HIGH PRESSURE REBOUNDS, AND HIGHER THAN
NORMAL TEMPERATURES QUICKLY RETURN TO OUR REGION. SUBSEQUENT
ACTIVE WEATHER WITH POSSIBLE RAIN SHOWERS MOVES IN AGAIN NEXT
WEEK.
FORECAST CONFIDENCE & DEVIATIONS:
CONFIDENCE IS LOW FOR HUMIDITY TODAY IN OUR LOCAL AREA. WHETHER OR
NOT IT RAINS TODAY WILL HAVE A SIGNIFICANT IMPACT ON HUMIDITIES.
RECENT NBM HUMIDITY HAS BEEN OFF SIGNIFICANTLY AND USUALLY TOO
HIGH. RH FORECAST FOR TODAY WAS LOWERED TO THE DRIER END OF THE
MODEL POSSIBILITIES FOR TODAY.
CONFIDENCE IS AVERAGE FOR WINDS, ESPECIALLY WITH THE NBM 90
BLENDED IN.
AVIATION
LAST UPDATE: WEDNESDAY MARCH 25 AT 0745Z
FLIGHT CATEGORY: VFR MOST OF THE TIME. AREAS OF MVFR LATE TONIGHT.
DISCUSSION: A MIX OF LOW AND MID LEVEL CLOUDS ARE EXPECTED
EARLY THIS MORNING WITH CHANCES FOR LIGHT RAIN AT TIMES AS A WARM
FRONT MOVES THROUGH THE AREA. MID LEVEL CLOUDS ARE EXPECTED TODAY
WITH AREAS OF VFR LEVEL LOW CLOUDS THIS AFTERNOON WITH LIGHT RAIN
AT TIMES. LOW CLOUDS MOVE IN LATE TONIGHT WITH MVFR CEILINGS
POSSIBLE.
WIND: VARIABLE WINDS LESS THAN 10 KNOTS EARLY THIS MORNING WILL
BECOME WEST THIS MORNING AND INCREASE TO 15 TO 25 KNOTS THIS
AFTERNOON AND BECOME NORTHWEST THIS EVENING. WINDS WILL BECOME
NORTH 5 TO 15 KNOTS LATE TONIGHT.
GGW WATCHES/WARNINGS/ADVISORIES
LAKE WIND ADVISORY FROM 10 AM THIS MORNING TO MIDNIGHT MDT
TONIGHT FOR CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN
VALLEY-GARFIELD-MCCONE-PETROLEUM.
WEATHER.GOV/GLASGOW
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