852
FXUS65 KGGW 270457
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1057 PM MDT THU MAR 26 2026
KEY MESSAGES
- EXPECT A HARD FREEZE THIS MORNING WITH NEAR NORMAL TEMPS FOR
TODAY.
- MILD AND DRY CONDITIONS LOOK TO RETURN FOR THE WEEKEND WITH
LIGHT RAIN/SNOW POSSIBLE EARLY NEXT WEEK.
DISCUSSION
WEATHER PATTERN OVERVIEW:
WITH WARM HOT HIGH PRESSURE IN PLACE OVER THE DESERT SOUTHWEST,
THIS HAS BROUGHT AND ACTIVE ZONAL PATTERN TO THE INTERNATIONAL
BORDER INCLUDING NORTHERN MONTANA. THE PROBLEM OVER THE NEXT HALF-WEEK
OR SO WILL BE A LACK OF PACIFIC MOISTURE IN THE FLOW TO SQUEEZE
OUT ANYTHING OTHER THAN VERY LIGHT RAIN OR FLURRIES.
THIS MORNING EXPECT A HARD FREEZE AS THE COLD AIR BEHIND A FRONT
BRIEFLY SETTLES IN FOR ABOUT 12 TO 24 HOURS AND THEN LEAVES JUST
AS QUICKLY THIS EVENING. WITH CLEAR SKIES LOWS MAY DROP SLIGHTLY
LOWER THAN PROJECTED ALONG RIVER VALLEY BOTTOMS.
ON SATURDAY, WARM HIGH PRESSURE OVER THE DESERT SW REBOUNDS, AND
HIGHER THAN NORMAL TEMPERATURES QUICKLY RETURN TO OUR REGION FOR
THE WEEKEND BEFORE BEING KNOCKED DOWN AGAIN BY ANOTHER WEAK COLD
FRONT MONDAY NIGHT. MORE ACTIVE WEATHER WITH CHANCES (10-50%) FOR
LIGHT RAIN AND SNOW SHOWERS MOVES IN AGAIN DURING THE NEXT WORK
WEEK. HOWEVER, ENSEMBLE GROUPINGS ARE FOCUSED ON INDIVIDUAL WAVES
ALONG THE ZONAL FLOW WHICH ARE ALL OUT OF PHASE WITH EACH OTHER.
SUBSEQUENTLY PRECIP APPEARS ONE FORECAST AND EXIST THE NEXT. UNTIL
THESE WAVES START TO PIN DOWN TO EACH OTHER IN THE ENSEMBLES, CONFIDENE
WILL BE VERY LOW FOR ANY INDIVIDUAL PRECIP EVENT.
FORECAST CONFIDENCE & DEVIATIONS:
NO DEVIATIONS THIS FORECAST CYCLE.
THERE IS MODERATE CONFIDENCE IN TEMPERATURES THROUGH MONDAY.
THERE IS LOW CONFIDENCE IN PRECIP OR TEMPS TUESDAY ONWARD.
GAH
AVIATION
LAST UPDATE: 0430Z
FLIGHT CATEGORY: VFR
DISCUSSION: SKIES ARE QUICKLY CLEARING AND VFR CONDITIONS ARE
EXPECTED FOR THE REMAINDER OF THE TAF CYCLE ONCE THE LAST OF THE
LOW CLOUDS EXITS EAST FROM KSDY IN THE NEXT FEW HOURS.
WIND: NW TO W AT LESS THAN 10 KTS THROUGH THE EARLY MORNING. LIGHT
AND VARIABLE MID-MORNING. THEN BECOMING S AT 5 TO 15 KTS LATE
FRIDAY MORNING THROUGH THE AFTERNOON AND EVENING.
GAH
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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