150
FXUS65 KMSO 311001
AFDMSO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
401 AM MDT FRI OCT 31 2025
DISCUSSION
KEY MESSAGES:
- INCREASING CLOUD COVER WILL LIMIT OVERALL EXTENT OF FOG
REDEVELOPMENT FOR TODAY
- MILD AND BREEZY CONDITIONS THIS WEEKEND WITH WIDESPREAD
PRECIPITATION ACROSS NORTH CENTRAL IDAHO INTO NORTHWEST MONTANA
SATURDAY INTO SUNDAY
A RIDGE OF HIGH PRESSURE WILL BE OVER THE REGION TODAY ALLOWING
FOR A DRY HALLOWEEN WITH SEASONAL TEMPERATURES.
THE UPPER LEVEL FLOW WILL BECOME SOUTHWESTERLY ON SATURDAY
BRINGING IN GUSTY WEST WINDS ESPECIALLY ACROSS NORTHWEST MONTANA.
WIND GUSTS UP TO 50 MPH IN THE HIGHER TERRAIN AROUND GLACIER
NATIONAL PARK IS EXPECTED BY SATURDAY AFTERNOON. THIS FLOW PATTERN
WILL PUSH IN A DECENT PLUME OF MOISTURE ACROSS NORTH CENTRAL IDAHO
INTO NORTHWEST MONTANA SATURDAY INTO SUNDAY. THE GUSTY WEST WINDS
WILL LIMIT THE PRECIPITATION AMOUNTS IN THE VALLEYS, BUT THE
HIGHER TERRAIN ALONG THE MONTANA/IDAHO BORDER SHOULD RECEIVE A
DECENT AMOUNT OF MOISTURE BY SUNDAY MORNING. SNOW LEVELS WILL
REMAIN RELATIVELY HIGH (AROUND 7000FT) DURING THE BULK OF THE
PRECIPITATION, SO ANY SNOW WILL BE LIMITED TO THE HIGHEST TERRAIN.
THE NORTHERN ROCKIES APPEARS TO REMAIN IN A FAIRLY ACTIVE WEATHER
PATTERN NEXT WEEK. A SHORT LIVED LOW AMPLITUDE RIDGE SLIDES OVER
THE AREA ON MONDAY. THEN ANOTHER DISTURBANCE WILL BRING SCATTERED
SHOWERS TO THE REGION ON TUESDAY. RIDGE WEDNESDAY FOLLOWED BY
ANOTHER DISTURBANCE FOR THE LATTER PART OF THE WEEK. TEMPERATURES
APPEAR TO REMAIN SEASONAL TO SLIGHTLY ABOVE AVERAGE FOR NEXT WEEK.
AVIATION
HIGH PRESSURE WILL CONTINUE TO BE OVER THE REGION
TODAY. LOW STRATUS AND FOG IS ALREADY DEVELOPING ACROSS PORTIONS
OF NORTH CENTRAL IDAHO INTO NORTHWEST MONTANA. KGPI IS EXPECTED TO
ONCE AGAIN DEVELOP A STRATUS DECK AROUND SUNRISE THIS MORNING AND
HAVE IT DIMINISH BY LATE MORNING. KMSO WILL HAVE FOG DEVELOP
WITHIN THE VICINITY OF THE TERMINAL, THE EXTENT OF THE FOG IS
ANTICIPATED TO BE LESS THEN YESTERDAY. THE OTHER TERMINALS SHOULD
HAVE FAIR FLYING CONDITIONS FOR THE NEXT 24 HRS.
MSO WATCHES/WARNINGS/ADVISORIES
MT...NONE.
ID...NONE.
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