523
FXUS65 KGGW 142028
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
228 PM MDT SAT MAR 14 2026
KEY MESSAGES
- ADVISORIES FOR MCCONE AND MOST OF PHILLIPS COUNTIES WERE
UPGRADED THIS MORNING TO WARNINGS THIS MORNING AS MODELS NUDGED
PRECIPITATION A BIT TO THE NORTH. ALL OTHER WARNINGS AND
ADVISORIES WERE LEFT INTACT.
- FIRST BATCH OF STATEMENTS EXPIRE TONIGHT AT MIDNIGHT (WESTERN
ONES) WITH THE EASTERN ONES SET TO EXPIRE SUNDAY MORNING AT 6
AM.
- COLDER THAN NORMAL TEMPERATURES WILL PERSIST THROUGH MONDAY,
WITH MUCH WARMER TEMPERATURES EXPECTED BY THE MIDDLE OF NEXT
WEEK WITH HIGHS IN THE 60S AND 70S.
DISCUSSION
WEATHER PATTERN OVERVIEW:
THE ATMOSPHERIC RIVER CONTINUES TO PUSH PLENTIFUL MOISTURE FROM
THE NORTHERN ROCKIES THROUGH THE NORTHERN PLAINS TODAY.
SNOW INTENSITY HAS MAXED OUT THIS AFTERNOON ACROSS THE CWA. WINDS
HAVE COME DOWN A BIT THIS AFTERNOON BUT STILL GUSTING AROUND 30
MPH FROM JORDAN TO THE BIG SHEEP MOUNTAINS. THIS IS PROBABLY WHERE
THE WORSE CONDITIONS ARE THIS AFTERNOON AS THE HEAVIEST SNOW ALSO
SEEMS TO BE FALLING IN THIS AREA.
SNOW IS EXPECTED TO TAPER OFF FROM NW TO SE TONIGHT. CURRENT
HEADLINES EXPIRE IN THE WESTERN ZONES AT MIDNIGHT TONIGHT WITH THE
EASTERN ZONES EXPIRING SUNDAY MORNING.
BEHIND THIS STORM SYSTEM, AN ARCTIC AIRMASS OVER THE SOUTHERN
CANADIAN PRAIRIE PROVINCES WILL DROP INTO EASTERN MONTANA LATER THIS
WEEKEND. WIND CHILLS WILL DROP BELOW ZERO BY SUNDAY MORNING
ACROSS THE CWA. NOT HEADLINE WORTHY BUT WILL BE FELT AS UNUSUALLY
COLDER THAN NORMAL FOR MID-MARCH. THIS COULD PUT SOME UNWELCOME
STRESS ON NEWBORN AND YOUNG LIVESTOCK.
NOT TO BE OUTDONE FOR DRAMA ON THE HEELS OF THIS COLD AIR MASS
SUNDAY AND MONDAY, A STRONG AND VERY WARM RIDGE OF HIGH PRESSURE
WILL QUICKLY MOVE INTO THE REGION, AND BRING HIGH TEMPERATURES
CLIMBING INTO THE 60S DEGREES POSSIBLY WARMER BY WEDNESDAY. AREA
CREEKS, STREAMS, AND RIVERS WILL NEED TO BE WATCHED FOR ICE
BREAKING UP AND WATER LEVEL RISING DUE TO RAPID SNOWMELT.
ESPECIALLY THROUGH CENTRAL AND SOUTHERN MONTANA.
FORECAST CONFIDENCE & DEVIATIONS:
WINDS TUESDAY (15-24Z) WERE BLENDED WITH NBM90.
OTHERWISE, NO OTHER CHANGES FROM THE NBM. TFJ
AVIATION
FLIGHT CATEGORY: REMAIN IFR INTO THE EARLY EVENING HOURS THEN
GRADUALLY IMPROVING TONIGHT. VFR CONDITIONS ARE EXPECTED SUNDAY
MORNING.
DISCUSSION: THE CURRENT STORM SYSTEM WILL MOVE OUT
TONIGHT WITH ARCTIC HIGH PRESSURE TO MOVE IN. EXPECT COLD BUT DRY
CONDITIONS SUNDAY.
WINDS: WILL CONTINUE TO TURN COUNTER-CLOCKWISE AND BECOME
NORTHERLY LATE TONIGHT AT 10-25 KTS. NW WINDS ARE EXPECTED SUNDAY
AT 5 TO 15 KTS. TFJ
GGW WATCHES/WARNINGS/ADVISORIES
WINTER STORM WARNING UNTIL MIDNIGHT MDT TONIGHT FOR CENTRAL AND
SOUTHEAST PHILLIPS-GARFIELD-PETROLEUM-SOUTHWEST PHILLIPS.
WINTER WEATHER ADVISORY UNTIL MIDNIGHT MDT TONIGHT FOR CENTRAL
AND SOUTHERN VALLEY-NORTHERN PHILLIPS.
WINTER WEATHER ADVISORY UNTIL 6 AM MDT SUNDAY FOR EASTERN
ROOSEVELT-RICHLAND-WESTERN ROOSEVELT.
WINTER STORM WARNING UNTIL 6 AM MDT SUNDAY FOR DAWSON-MCCONE-
PRAIRIE-WIBAUX.
WEATHER.GOV/GLASGOW
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