433
WWUS45 KMSO 171715
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1015 AM MST TUE DEC 17 2024
MTZ002-181715-
/O.NEW.KMSO.WS.W.0014.241218T0000Z-241219T0600Z/
WEST GLACIER REGION-
1015 AM MST TUE DEC 17 2024
...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 PM
MST WEDNESDAY...
* WHAT...HEAVY SNOW EXPECTED. LIKELIHOOD OF MAJOR TO EXTREME IMPACTS
FROM 6 TO 10 INCHES OR MORE OF SNOW IS 90 PERCENT, AND 10 TO 18
INCHES OF SNOW IS 60 PERCENT. WINDS GUSTING AS HIGH AS 60 MPH IN
THE HIGHER TERRAIN.
* WHERE...ESSEX, BAD ROCK CANYON, POLEBRIDGE, HIGHWAY 83 BIGFORK TO
SWAN LAKE, AND MARIAS PASS.
* WHEN...FROM 5 PM THIS AFTERNOON TO 11 PM MST WEDNESDAY.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING AND
BLOWING SNOW. THE STRONG WINDS AND WEIGHT OF SNOW ON TREE LIMBS
MAY DOWN POWER LINES AND COULD CAUSE SPORADIC POWER OUTAGES.
WHITEOUT CONDITIONS ARE EXPECTED AND WILL MAKE TRAVEL TREACHEROUS
AND POTENTIALLY LIFE-THREATENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT TOUCH DOWNED LINES AND REPORT ANY POWER OUTAGES TO YOUR
ELECTRIC COMPANY. TRAVEL IS HIGHLY DISCOURAGED DUE TO SLICK ROADWAYS
AND THE POSSIBILITY OF DOWNED TREES AND POWER LINES.
OUTDOOR RECREATIONALISTS SHOULD BE PREPARED FOR WINTER CONDITIONS.
SNOWFALL COULD IMPACT ROADS AND COLD TEMPERATURES MAY RESULT IN
HYPOTHERMIA.
IDZ005-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
NORTHERN CLEARWATER MOUNTAINS-
915 AM PST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10
AM PST WEDNESDAY ABOVE 4000 FEET...
* WHAT...SNOW EXPECTED ABOVE 4000 FEET. LIKELIHOOD OF MODERATE
IMPACTS FROM 3 TO 6 INCHES OF SNOW IS GREATER THAN 90 PERCENT, AND
UP TO A 50 PERCENT CHANCE OF ISOLATED MAJOR IMPACTS FROM 6 TO 10
INCHES OR MORE OF SNOW. WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...NORTHERN CLEARWATER MOUNTAINS.
* WHEN...FROM 4 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY.
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, EXPECT DISRUPTIONS TO
NORMAL ACTIVITIES. HAZARDOUS TRAVELING CONDITIONS. USE EXTRA
CAUTION WHILE DRIVING. CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. FOR MAJOR IMPACTS FROM SNOW, EXPECT CONSIDERABLE
DISRUPTIONS TO NORMAL ACTIVITIES. DANGEROUS OR IMPOSSIBLE
TRAVELING CONDITIONS. AVOID TRAVEL IN THE IMPACTED AREAS IF
POSSIBLE. WIDESPREAD CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. THE HAZARDOUS CONDITIONS COULD IMPACT THE TUESDAY
EVENING AND WEDNESDAY MORNING COMMUTES, ESPECIALLY OVER HIGHER
PASSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
IDZ006-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
SOUTHERN CLEARWATER MOUNTAINS-
915 AM PST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10
AM PST WEDNESDAY ABOVE 4000 FEET...
* WHAT...SNOW EXPECTED ABOVE 4000 FEET. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT,
AND 3 TO 6 INCHES OF SNOW IS 90 PERCENT. WINDS GUSTING AS HIGH AS
45 MPH.
* WHERE...DIXIE AND ELK CITY.
* WHEN...FROM 4 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY.
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, EXPECT DISRUPTIONS TO
NORMAL ACTIVITIES. HAZARDOUS TRAVELING CONDITIONS. USE EXTRA
CAUTION WHILE DRIVING. CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. THE HAZARDOUS CONDITIONS COULD IMPACT THE TUESDAY
EVENING AND WEDNESDAY MORNING COMMUTES, ESPECIALLY OVER HIGHER
PASSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ001-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
KOOTENAI/CABINET REGION-
1015 AM MST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11
AM MST WEDNESDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT,
AND 3 TO 6 INCHES OF SNOW IS 90 PERCENT. ICE ACCUMULATIONS AROUND
A LIGHT GLAZE. WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 56 BULL LAKE ROAD,
HIGHWAY 93 EUREKA TO WHITEFISH, AND HIGHWAY 37 EUREKA TO LIBBY.
* WHEN...FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. THE HAZARDOUS CONDITIONS
COULD IMPACT THE TUESDAY EVENING AND WEDNESDAY MORNING COMMUTES,
ESPECIALLY OVER HIGHER PASSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE
DRIVING. IF YOU ARE GOING OUTSIDE, WATCH YOUR FIRST FEW STEPS TAKEN
ON STAIRS, SIDEWALKS, AND DRIVEWAYS. THESE SURFACES COULD BE ICY AND
SLIPPERY, INCREASING YOUR RISK OF A FALL AND INJURY.
MTZ003-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
FLATHEAD/MISSION VALLEYS-
1015 AM MST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11
AM MST WEDNESDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT,
AND 3 TO 6 INCHES OF SNOW IS 50 PERCENT. ICE ACCUMULATIONS AROUND
A LIGHT GLAZE.
* WHERE...POLSON, MISSION VALLEY, FLATHEAD VALLEY, AND FLATHEAD LAKE.
* WHEN...FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE TUESDAY EVENING AND WEDNESDAY MORNING
COMMUTES, ESPECIALLY OVER HIGHER PASSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ004-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
LOWER CLARK FORK REGION-
1015 AM MST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11
AM MST WEDNESDAY ABOVE 4000 FEET...
* WHAT...SNOW EXPECTED ABOVE 4000 FEET. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT,
AND 3 TO 6 INCHES OF SNOW IS 90 PERCENT. WINDS GUSTING AS HIGH AS
45 MPH.
* WHERE...I-90 LOOKOUT PASS TO HAUGAN AND EVARO HILL.
* WHEN...FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY.
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, EXPECT DISRUPTIONS TO
NORMAL ACTIVITIES. HAZARDOUS TRAVELING CONDITIONS. USE EXTRA
CAUTION WHILE DRIVING. CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. THE HAZARDOUS CONDITIONS COULD IMPACT THE TUESDAY
EVENING AND WEDNESDAY MORNING COMMUTES, ESPECIALLY OVER HIGHER
PASSES. GUSTY WINDS COULD BRING DOWN TREE BRANCHES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MTZ006-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
BITTERROOT/SAPPHIRE MOUNTAINS-
1015 AM MST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11
AM MST WEDNESDAY...
* WHAT...SNOW EXPECTED. LIKELIHOOD OF MODERATE IMPACTS FROM 3 TO 6
INCHES OF SNOW IS GREATER THAN 90 PERCENT, AND UP TO A 50 PERCENT
CHANCE OF ISOLATED MAJOR IMPACTS FROM 6 TO 10 INCHES OR MORE OF
SNOW. WINDS GUSTING AS HIGH AS 55 MPH.
* WHERE...HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS.
* WHEN...FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY.
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, EXPECT DISRUPTIONS TO
NORMAL ACTIVITIES. HAZARDOUS TRAVELING CONDITIONS. USE EXTRA
CAUTION WHILE DRIVING. CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. FOR MAJOR IMPACTS FROM SNOW, EXPECT CONSIDERABLE
DISRUPTIONS TO NORMAL ACTIVITIES. DANGEROUS OR IMPOSSIBLE
TRAVELING CONDITIONS. AVOID TRAVEL IN THE IMPACTED AREAS IF
POSSIBLE. WIDESPREAD CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. THE HAZARDOUS CONDITIONS COULD IMPACT THE TUESDAY
EVENING AND WEDNESDAY MORNING COMMUTES, ESPECIALLY OVER HIGHER
PASSES. GUSTY WINDS COULD BRING DOWN TREE BRANCHES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
OUTDOOR RECREATIONALISTS AND DRIVERS HEADED OVER PASSES SHOULD BE
PREPARED FOR PERIODS OF WHITEOUT CONDITIONS.
MTZ043-181715-
/O.NEW.KMSO.WW.Y.0058.241218T0000Z-241218T1800Z/
POTOMAC/SEELEY LAKE REGION-
1015 AM MST TUE DEC 17 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11
AM MST WEDNESDAY...
* WHAT...SNOW EXPECTED. LIKELIHOOD OF MINOR TO MODERATE IMPACTS FROM
AROUND 1 TO 3 INCHES OF SNOW IS 100 PERCENT, AND 3 TO 6 INCHES OF
SNOW IS 70 PERCENT. WINDS GUSTING AS HIGH AS 45 MPH.
* WHERE...HIGHWAY 83 SEELEY LAKE TO CONDON, HIGHWAY 200 BONNER TO
GREENOUGH, AND I-90 EAST MISSOULA TO BEARMOUTH.
* WHEN...FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY.
* IMPACTS...FOR MODERATE IMPACTS FROM SNOW, EXPECT DISRUPTIONS TO
NORMAL ACTIVITIES. HAZARDOUS TRAVELING CONDITIONS. USE EXTRA
CAUTION WHILE DRIVING. CLOSURES AND DISRUPTIONS TO INFRASTRUCTURE
MAY OCCUR. THE HAZARDOUS CONDITIONS COULD IMPACT THE TUESDAY
EVENING AND WEDNESDAY MORNING COMMUTES, ESPECIALLY OVER HIGHER
PASSES. GUSTY WINDS COULD BRING DOWN TREE BRANCHES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
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