407
FXUS65 KGGW 160637
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1237 AM MDT THU APR 16 2026
KEY MESSAGES
- ISOLATED TO SCATTERED RAIN SHOWERS WILL MIX WITH AND CHANGE TO
SNOW SHOWERS FROM NW TO SE TODAY.
- BELOW NORMAL TEMPERATURES ARE EXPECTED FOR TODAY AND FRIDAY
WITH PERSISTENT NORTHWEST GUSTY WINDS.
- EXPECT A WARMING TREND OVER THE WEEKEND AND EARLY NEXT WEEK WITH
DRIER WEATHER CONDITIONS.
DISCUSSION
WEATHER PATTERN OVERVIEW:
THE NEXT LOW PRESSURE SYSTEM AND COLD FRONT WILL CONTINUE TO MOVE
THROUGH THE FORECAST AREA THIS MORNING. NORTHWEST WINDS WILL
INCREASE BEHIND THE FRONT THIS MORNING AND A LAKE WIND ADVISORY
WILL REMAIN IN EFFECT FROM 9 AM TO 9 PM TODAY.
COLDER AIR WILL TURN ISOLATED TO SCATTERED RAIN SHOWERS INTO SNOW
SHOWERS FROM NW TO SE ACROSS THE REGION. SOME AREAS ALONG THE
CANADIAN BORDER MAY RECEIVE AN INCH OF SNOW FROM THIS SYSTEM.
OTHERWISE, LITTLE OR NO ACCUMULATION IS EXPECTED.
UPPER TROUGH MOVES THROUGH THE AREA TONIGHT WITH THE PRECIPITATION
CHANCES ENDING. COLD AIR REMAINS OVER THE AREA ON FRIDAY WITH NW
FLOW ALOFT. AFTER COLD NIGHTS THURSDAY NIGHT AND FRIDAY NIGHT WITH
LOWS IN THE TEENS AND 20S. TEMPERATURES WILL BE SOMEWHAT WARMER ON
SATURDAY AS THE COLDEST AIR MOVES TO THE EAST THE BRIGHT APRIL SUN
SHINES ON THE AREA.
UPPER RIDGE BUILDS INTO THE AREA STARTING ON SUNDAY WITH DRY AND
WARMER WEATHER THAT WILL CONTINUE FOR A FEW DAYS. .
FORECAST CONFIDENCE & DEVIATIONS:
NEAR TERM WINDS WERE ADJUSTED WITH A BLEND OF NBM90 FOLLOWING A
PERIOD OF DECENT COLD AIR ADVECTION TODAY AND LOWERING HEIGHTS
WITH THE APPROACHING TROUGH. CONFIDENCE IS INCREASING ON TOTAL
PRECIPITATION REMAINING LIGHT OVERALL TODAY BUT REMAINS BELOW
AVERAGE ON PRECIPITATION TYPE AND SNOWFALL AMOUNTS NEAR THE
CANADIAN BORDER GIVEN MARGINAL TEMPERATURE THRESHOLDS.
AVIATION
LAST UPDATE: 0400Z
FLIGHT CAT RANGE: VFR - IFR
DISCUSSION: VFR WILL TRANSITION TO MVFR AND IFR AT KGGW AND KOLF THIS
MORNING AS LOW CLOUDS MOVE IN BEHIND A COLD FRONT. THE MVFR
CEILINGS MAY OR MAY NOT REACH KGDV AND KSDY TODAY. THERE WILL BE
RAIN SHOWERS AT TIMES THAT WILL EITHER MIX WITH OR CHANGE INTO
SNOW SHOWERS TODAY WITH REDUCED VISIBILITIES AT TIMES.
A MIX OF VFR AND MVFR CEILINGS ARE EXPECTED TONIGHT WITH A MIX OF
LOW AND MID LEVEL CLOUDS OVER THE AREA.
WIND: EITHER VARIABLE OR NE WINDS EARLY AT 5 TO 15 KNOTS BECOMING
NW 15 TO 25 KNOTS, GUSTING TO 35 KNOTS BETWEEN 13Z AND 15Z. NW
WINDS WILL DIMINISH TO 10 TO 15 KNOTS TONIGHT.
GGW WATCHES/WARNINGS/ADVISORIES
LAKE WIND ADVISORY FROM 9 AM THIS MORNING TO 9 PM MDT THIS
EVENING FOR CENTRAL AND SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN
VALLEY-GARFIELD-MCCONE-PETROLEUM.
WEATHER.GOV/GLASGOW
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