997
FXUS65 KGGW 100645
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1245 AM MDT WED JUN 10 2026
KEY MESSAGES
- GUSTY WEST WINDS ARE EXPECTED TODAY THAT WILL BECOME NW TONIGHT
AND CONTINUE THROUGH THURSDAY. A LAKE WIND ADVISORY REMAINS IN
EFFECT UNTIL 9 PM THURSDAY EVENING.
- COOL TEMPERATURES WITH FREQUENT CHANCES FOR SHOWERS AND
THUNDERSTORMS WILL CONTINUE THE NEXT SEVERAL DAYS.
DISCUSSION
WEATHER PATTERN OVERVIEW:
UPPER TROUGH/LOW WILL MOVE THROUGH THE REGION TODAY. STRONG WEST
WINDS WITH COOL TEMPERATURES ARE EXPECTED TODAY. THE SYSTEM WILL
BRING CHANCES FOR SHOWERS MAINLY IN PHILLIPS AND VALLEY COUNTIES
THIS AFTERNOON. SHOWERS WITH ISOLATED THUNDERSTORMS WILL MOVE
ACROSS THE ENTIRE FORECAST AREA TONIGHT AS THE UPPER TROUGH AXIS
MOVES THROUGH. GUSTY WEST WINDS WILL SHIFT TO THE NW THIS EVENING
AS THIS SYSTEM MOVES THROUGH THE AREA. THE MAIN AREA OF SHOWERS
MOVE TO THE EAST THURSDAY MORNING AS THE UPPER TROUGH MOVES INTO
THE DAKOTAS. GUSTY NW WINDS WILL CONTINUE ON THURSDAY WITH A
CHANCE OF SHOWERS POSSIBLY THUNDERSTORMS AT TIMES. WILL MAINTAIN
THE LAKE WIND ADVISORY FOR FORT PECK LAKE UNTIL THURSDAY EVENING
WHEN WINDS WILL DIMINISH.
THE UPPER LOW MOVES TO HUDSON BAY ON FRIDAY AND MEANDERS IN THAT
AREAS OVER THE WEEKEND. MONTANA WILL HAVE COOL NW FLOW ALOFT ON
FRIDAY AND THEN, MODELS AND ENSEMBLES ARE POINTING TOWARDS AN
UPPER TROUGH DEVELOPING OVER MONTANA AND THE PACIFIC NW OVER THE
WEEKEND WITH CHANCES FOR SHOWERS AND THUNDERSTORMS AT TIMES.
FORECAST CONFIDENCE & DEVIATIONS:
TWEAKED POPS TODAY. OTHERWISE, NO CHANGES TO THE NBM.
CONFIDENCE THEN REMAINS ABOVE AVERAGE FOR THE COOL AND UNSETTLED
WEATHER TO CONTINUE FOR NEXT FEW DAYS GIVEN THE OVERALL HANDLING
OF THE TROUGH. CONFIDENCE IN EXACT TIMING, PLACEMENT, AND AMOUNT
OF PRECIPITATION REMAINS LOW TO MODERATE GIVEN THE MESOSCALE
DETAIL STILL TO BE WORKED OUT A LARGER TIME SCALES.
AVIATION
UPDATED: 0700Z/1:00 AM
FLIGHT CAT RANGE: VFR TODAY BECOMING MVFR TONIGHT.
DISCUSSION: LOOK FOR MID AND HIGH CLOUDS WITH BREAKS TODAY. GUSTY
WEST WINDS 10 TO 20 KNOTS THIS MORNING WILL INCREASE TO 20 TO 25
KNOTS THIS AFTERNOON WITH GUSTS TO 35 KNOTS. WINDS WILL BECOME NW
15 TO 25 KNOTS TONIGHT AT KGGW AND KOLF AND THURSDAY MORNING AT
KSDY AND KGDV. RAIN SHOWERS WITH ISOLATED THUNDERSTORMS WILL MOVE
INTO THE REGION TONIGHT AND REDUCE CEILINGS TO MVFR LEVELS.
GGW WATCHES/WARNINGS/ADVISORIES
LAKE WIND ADVISORY UNTIL 9 PM MDT THURSDAY FOR CENTRAL AND
SOUTHEAST PHILLIPS-CENTRAL AND SOUTHERN VALLEY-GARFIELD-MCCONE-
PETROLEUM.
WEATHER.GOV/GLASGOW
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