242
FXUS65 KGGW 261017
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
317 AM MST FRI FEB 26 2021
DISCUSSION
FORECAST CHALLENGES WILL FOCUS ON THE COLD FRONT AND ITS
ASSOCIATED PRECIPITATION BEGINNING THIS EVENING. OTHERWISE, THE
FORECAST IS PRETTY QUIET.
THE COLDER CANADIAN AIR MASS IS EXPECTED TO PUSH FURTHER SOUTHWARD
AFTER TODAY WITH A FEW SMALL RE-ENFORCING SHORT-WAVE LOBES TONIGHT
THROUGH SUNDAY MORNING. BREEZY/GUSTY WEST WINDS TODAY WILL TURN
NOTICEABLY FROM THE NORTH BEGINNING THIS EVENING, WHICH WILL
SIGNAL THE START OF THE COLD FRONT. PRECIP MODEL BLENDS HINT AT
SOME ASSOCIATED SCATTERED OR ISOLATED RAIN SHOWERS LATE THIS
AFTERNOON, CHANGING TO SNOW SHOWERS LATER THIS EVENING AND
LINGERING INTO SATURDAY MORNING. I EXPECT THAT MOST AMOUNTS WILL
BE TRACE, BUT IF ANY SNOW HAPPENS TO ACCUMULATE, IT WILL BE AROUND
HALF AN INCH OR LESS. LOW TEMPERATURES TONIGHT WILL DROP DOWN TO
NEAR ZERO DEGREES ALONG THE INTERNATIONAL BORDER. HIGHS ON
SATURDAY WILL STRUGGLE TO REACH THE MID 20S FOR MANY LOCATIONS.
SATURDAY NIGHT INTO SUNDAY MORNING THE PRECIPITATION DIMINISHES AS
IT CONTINUES TO MOVE SOUTH AWAY FROM NE MONTANA.
MONDAY, A BROAD RIDGE OF HIGH PRESSURE WILL ALLOW TEMPERATURES TO
REBOUND TO WELL ABOVE NORMAL.
AFTER A DRY SHORT-WAVE TROUGH MOVES THROUGH THE REGION, BRINGING A
BIT COOLER TEMPERATURES ON WEDNESDAY, THE REMAINDER OF THE WEEK
WILL BRING AN AMPLIFIED RIDGE OF STRONG HIGH PRESSURE, AND HIGH
TEMPERATURES WELL INTO THE MID 50S FOR MOST LOCATIONS.
AVIATION
PATTERN: GENERAL PATTERN FLOW REMAINS FROM THE NORTHWEST. A COLD
FRONT WILL BE THE FOCUS FOR SOME SCATTERED RAIN AND SNOW SHOWERS
BEGINNING THIS EVENING.
FLIGHT CONDITIONS: MAINLY VFR, WITH BRIEF MVFR INTERRUPTIONS IF AN
ISOLATED SNOW SHOWER HAPPENS TO PASS DIRECTLY OVER A TAF SITE
TONIGHT AND INTO SATURDAY MORNING. EXPECT MOST TO BE VICINITY
SNOW SHOWERS.
WINDS: FROM THE WEST TODAY AT 15 TO 20 KTS. THEN, FROM THE NORTH
TONIGHT AT 15 KTS. TURNING BACK FROM THE NORTHWEST AT 10 TO 15 KTS
THROUGH THE DAY ON SATURDAY.
GLASGOW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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