834
FXUS65 KMSO 021017
AFDMSO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
417 AM MDT THU OCT 2 2025
DISCUSSION
KEY MESSAGES:
- SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS TODAY.
- COOL AND UNSETTLED PATTERN PERSISTS THROUGH THE WEEKEND.
- EARLY-SEASON MOUNTAIN SNOW POSSIBLE LATE SATURDAY INTO SUNDAY
WITH COLDER TEMPERATURES.
SOUTHWESTERLY FLOW WILL PERSIST OVER THE NORTHERN ROCKIES TODAY AS
A TROUGH OF LOW PRESSURE DIGS ALONG THE PACIFIC NORTHWEST COAST.
A WEAK DISTURBANCE IS CURRENTLY MOVING THROUGH THIS FLOW PATTERN
EARLY THIS MORNING AS PLUME OF LIGHT PRECIPITATION TRAVERSES WEST
CENTRAL MONTANA.
TONIGHT THE FLOW BECOMES EVEN MORE SOUTHERLY AS THE LOW MOVES INTO
NORTHERN CALIFORNIA. A STREAM OF MOISTURE WILL CAUSE LIGHT PLUME
OF LIGHT TO MODERATE PRECIPITATION TO STREAM OVER PORTION OF
CENTRAL IDAHO INTO SOUTHWEST MONTANA.
THE TROUGH OF LOW PRESSURE MOVES TOWARDS TO THE EAST FRIDAY INTO
SATURDAY. THE MOVEMENT OF THE LOW WILL CAUSE COOLER TEMPERATURES
AND ISOLATED SHOWER ACTIVITY AS THE BULK OF THE ENERGY OF THE
TROUGH WILL BE OVER THE GREAT BASIN REGION.
A SECONDARY DISTURBANCE APPEARS TO SLIDE SOUTHWARD OUT OF CENTRAL
CANADA BRINGING COOLER AIR ALONG WITH ENHANCED PRECIPITATION ALONG
THE CONTINENTAL DIVIDE. THE HIGHER TERRAIN OF GLACIER NP IS STILL
ANTICIPATED TO RECEIVE A COUPLE OF INCHES OF NEW SNOW BY SUNDAY
MORNING.
NORTHERLY FLOW IS ANTICIPATED TO REMAIN OVER THE NORTHERN ROCKIES
FOR THE FIRST PART OF NEXT WEEK. TEMPERATURES WILL BE WARMING
GRADUALLY EACH DAY WITH THE POTENTIAL FOR SOME LINGERING SHOWERS
IN THE HIGHER TERRAIN.
AVIATION
A PLUME OF SHOWERS WILL CONTINUE TO STREAM THROUGH
PORTIONS OF NORTH CENTRAL IDAHO INTO WEST CENTRAL MONTANA UNTIL
02/15Z. THESE SHOWERS WILL CAUSE A SLIGHT REDUCTION IN VISIBILITY
OF LOWERED CEILINGS. THE MOIST LOW LEVELS ACROSS NORTHWEST MONTANA
WILL ALLOW FOR THE DEVELOPMENT OF PATCHY VALLEY FOG AND LOW
STRATUS. KGPI WILL HAVE THE MAIN IMPACT FROM THE LOW STRATUS UNTIL
AROUND 02/17Z. ISOLATED SHOWERS ARE EXPECTED TO LINGER ACROSS THE
REGION, ESPECIALLY THIS AFTERNOON.
MSO WATCHES/WARNINGS/ADVISORIES
MT...NONE.
ID...NONE.
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