040
FXUS65 KMSO 240815
AFDMSO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
215 AM MDT FRI APR 24 2026
DISCUSSION
KEY MESSAGES:
- NEAR RECORD OR RECORD COLD TEMPERATURES FORECAST FOR SATURDAY
MORNING.
- COLD LASTS INTO EARLY NEXT WEEK.
SHOWERS AT 1AM ARE CONSOLIDATING OVER THE NORTHERN BITTERROOT
VALLEY. COMBINE THAT WITH BREEZY CONDITIONS AND A FEW ICY SPOTS
COULD BE POSSIBLE IN THE SOUTH HILLS OF MISSOULA AND NORTHERN
BITTEROOT VALLEY THIS MORNING COMMUTE.
AFTERNOON SHOWERS ARE EXPECTED TODAY AS THE REGION REMAINS UNDER
COLD, CYCLONIC FLOW. THESE SHOWERS WILL BE CAPABLE OF RAPIDLY REDUCING
VISIBILITY.
ATTENTION SHIFTS TO UNSEASONABLY COLD MORNINGS AS A PERSISTENT
CYCLONIC FLOW REMAINS OVER THE NORTHERN ROCKIES. WITH TEMPERATURES
APPROACHING RECORD LOWS THROUGH MID-WEEK, EXPECT A SIGNIFICANT
DIURNAL SWING; KIDS WILL NEED JACKETS IN THE MORNINGS WHILE
CARRYING THEM HOME DURING THE AFTERNOONS. ADDITIONALLY, REMEMBER
TO PROTECT ANY SENSITIVE PLANTS OVERNIGHT UNTIL TEMPERATURES START
TO MODERATE MID-WEEK. THIS FLOW WILL ALSO ALLOW A FEW DISTURBANCES
TO CYCLE THROUGH THE REGION DURING THIS PERIOD.
AVIATION
SHOWERS WILL CONTINUE MAINLY I-90 AND SOUTH THROUGH
THE MORNING AND REINITIATE REGION WIDE THIS AFTERNOON UNDER
NORTHWEST FLOW. WITH TEMPERATURES AT OR JUST BELOW FREEZING,
PRECIPITATION WILL BE FROZEN OVERNIGHT AND MIXED WITH RAIN DURING
AFTERNOONS.
MSO WATCHES/WARNINGS/ADVISORIES
MT...WINTER WEATHER ADVISORY UNTIL NOON MDT TODAY FOR
BITTERROOT/SAPPHIRE MOUNTAINS...BUTTE/BLACKFOOT REGION...
POTOMAC/SEELEY LAKE REGION.
WINTER WEATHER ADVISORY UNTIL 11 AM MDT THIS MORNING FOR LOWER
CLARK FORK REGION...MISSOULA/BITTERROOT VALLEYS.
ID...WINTER WEATHER ADVISORY UNTIL NOON MDT /11 AM PDT/ TODAY FOR
EASTERN LEMHI COUNTY...SOUTHERN CLEARWATER MOUNTAINS...
WESTERN LEMHI COUNTY.
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