727
FXUS65 KGGW 070917
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
217 AM MST WED JAN 7 2026
DISCUSSION
KEY MESSAGES:
- WARMER THAN NORMAL TEMPERATURES TODAY WILL FALL TO NEAR NORMAL
ON FRIDAY.
- WARMER THAN NORMAL TEMPERATURES RETURN ON SUNDAY AND CONTINUE
FOR SEVERAL DAYS.
- DRY WEATHER IS EXPECTED FOR THE NEXT SEVERAL DAYS.
WEATHER PATTERN OVERVIEW:
A NEARLY ZONAL FLOW TODAY WILL TRANSITION INTO A DEEPENING TROUGH
THURSDAY AND FRIDAY AS SEVERAL SHORTWAVES PUSH THROUGH THE
NORTHERN ROCKIES. WITH THE AMPLIFYING FLOW, BY THE WEEKEND A RIDGE
WILL MOVE ACROSS THE WESTERN STATES.
A PACIFIC COLD FRONT WILL MOVE THROUGH THE AREA TODAY WHICH WILL
BRING WEST WINDS THAT SHOULD MIX OUT THE INVERSIONS THAT HAVE KEPT
TEMPERATURES COLDER IN VALLEY ALONG AND NORTH OF US 2 THE LAST FEW
DAYS. ANOTHER COLD FRONT MOVES THOUGH THURSDAY NIGHT THAT WILL
LOWER TEMPERATURES TO NEAR NORMAL FOR FRIDAY. MOISTURE WILL STAY
TO THE SOUTH AND WEST OF THE FORECAST AREA WITH THESE SYSTEMS.
SATURDAY AND SATURDAY NIGHT, A WARM FRONT IS EXPECTED TO MOVE
EAST ACROSS THE AREA WHICH WILL BRING A RETURN TO ABOVE NORMAL
TEMPERATURES. IF SKIES CLEAR WITH LIGHT WINDS, NIGHTTIME FOG IS
POSSIBLE.
AN UPPER RIDGE WILL PREVAIL EARLY NEXT WEEK WITH DRY WEATHER.
FORECAST CONFIDENCE & DEVIATIONS:
CONFIDENCE ON TEMPERATURES TODAY IS LOW NORTH WHERE SNOW COVER
LINGER AND UNCERTAINTY ON HOW MUCH WEST WINDS WILL MIX OUT THE
INVERSION AND HIGH SOUTH WHERE THE GROUND IS MAINLY BARE. USED NBM
75 FOR HIGHS IN MOST AREAS WITH TWEAKS LOWER IN PARTS OF THE
NORTH. NO OTHER DEVIATIONS FROM NBM IN FORECAST.
AVIATION
UPDATED: 0900Z.
FLIGHT CONDITION: VFR.
DISCUSSION: THERE WILL BE VARYING AMOUNTS OF MID AND HIGH CLOUDS
TODAY MIXED IN WITH CLEAR SKIES. SKIES WILL BE MOSTLY CLEAR
TONIGHT.
LLWS: LOW LEVEL WIND SHEAR WILL BE POSSIBLE FOR ALL LOCATIONS
THIS MORNING.
WINDS: LIGHT AND VARIABLE EARLY BECOMING SW AROUND 10 KNOTS THIS
MORNING AND WEST 15 TO 20 KNOTS THIS AFTERNOON. WEST WIND WILL
DIMINISH TO 5 TO 10 KNOTS THIS EVENING AND WINDS WILL BECOME LIGHT
AND VARIABLE LATE TONIGHT.
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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