413
WWUS45 KMSO 061809
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1109 AM MST FRI DEC 6 2024
MTZ001-071815-
/O.NEW.KMSO.WS.W.0013.241207T1700Z-241208T0600Z/
/O.NEW.KMSO.WW.Y.0055.241207T0900Z-241207T1700Z/
KOOTENAI/CABINET REGION-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM TO 10 AM MST
SATURDAY...
..WINTER STORM WARNING IN EFFECT FROM 10 AM TO 11 PM MST SATURDAY
* WHAT...FOR THE WINTER WEATHER ADVISORY STARTING TONIGHT, MIXED
PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO MODERATE IMPACTS
FROM AROUND 1 TO 3 INCHES OF SNOW IS 90 PERCENT, AND 3 TO 6 INCHES
OF SNOW IS 40 PERCENT. ICE ACCUMULATIONS AROUND ONE TENTH OF AN
INCH. FOR THE WINTER STORM WARNING STARTING SATURDAY, HEAVY MIXED
PRECIPITATION EXPECTED. LIKELIHOOD OF MAJOR IMPACTS FROM SNOW AND
ICE IS GREATER THAN 60 PERCENT. TOTAL SNOW ACCUMULATIONS UP TO 4
INCHES AND ICE ACCUMULATIONS AROUND ONE TO TWO TENTHS OF AN INCH.
* WHERE...HIGHWAY 2 KALISPELL TO LIBBY, HIGHWAY 93 EUREKA TO
WHITEFISH, HIGHWAY 56 BULL LAKE ROAD, AND HIGHWAY 37 EUREKA TO
LIBBY.
* WHEN...FOR THE WINTER WEATHER ADVISORY, FROM 2 AM TO 10 AM MST
SATURDAY. FOR THE WINTER STORM WARNING, FROM 10 AM TO 11 PM MST
SATURDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS. SIGNIFICANT ICE ACCUMULATION ON
POWER LINES AND TREE LIMBS MAY CAUSE WIDESPREAD AND LONG-LASTING
POWER OUTAGES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS FOR
THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY CALLING 5 1 1.
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.
MTZ002-071815-
/O.NEW.KMSO.WW.Y.0055.241207T0900Z-241208T1500Z/
WEST GLACIER REGION-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM SATURDAY TO 8 AM MST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 90 PERCENT, AND 3 TO 6 INCHES OF SNOW IS 50 PERCENT. ICE
ACCUMULATIONS AROUND ONE TENTH OF AN INCH. WINDS GUSTING AS HIGH
AS 45 MPH NEAR MOUNTAIN PASSES, SUCH AS MARIAS PASS.
* WHERE...BAD ROCK CANYON, MARIAS PASS, ESSEX, POLEBRIDGE, AND
HIGHWAY 83 BIGFORK TO SWAN LAKE.
* WHEN...FROM 2 AM SATURDAY TO 8 AM MST SUNDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT DUE TO ICE AND SLICK
ROADS. 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.
MTZ003-071815-
/O.NEW.KMSO.WW.Y.0055.241207T0900Z-241208T1500Z/
FLATHEAD/MISSION VALLEYS-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM SATURDAY TO 8 AM MST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 90 PERCENT, AND 3 TO 6 INCHES OF SNOW IS 20 PERCENT. ICE
ACCUMULATIONS UP TO ONE TENTH OF AN INCH.
* WHERE...FLATHEAD VALLEY, MISSION VALLEY, POLSON, AND FLATHEAD LAKE.
* WHEN...FROM 2 AM SATURDAY TO 8 AM MST SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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.
MTZ004-071815-
/O.NEW.KMSO.WW.Y.0055.241207T0900Z-241208T1500Z/
LOWER CLARK FORK REGION-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM SATURDAY TO 8 AM MST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 90 PERCENT, AND 3 TO 6 INCHES OF SNOW IS 40 PERCENT. ICE
ACCUMULATIONS AROUND ONE TENTH OF AN INCH. WINDS GUSTING AS HIGH
AS 45 MPH IN THE MOUNTAINS.
* WHERE...HIGHWAY 200 TROUT CREEK TO HERON, HIGHWAY 200 THOMPSON
FALLS TO PLAINS, I-90 LOOKOUT PASS TO HAUGAN, AND EVARO HILL.
* WHEN...FROM 2 AM SATURDAY TO 8 AM MST SUNDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT DUE TO ICE AND SLICK
ROADS. 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.
IDZ005-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
NORTHERN CLEARWATER MOUNTAINS-
1009 AM PST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM SATURDAY TO 7 AM PST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 90 PERCENT, AND 3 TO 6 INCHES OF SNOW IS 50 PERCENT. ICE
ACCUMULATIONS AROUND ONE TO TWO TENTHS OF AN INCH. WINDS GUSTING
AS HIGH AS 35 MPH.
* WHERE...ELK RIVER, PIERCE, AND HIGHWAY 11 PIERCE TO HEADQUARTERS.
* WHEN...FROM 5 PM SATURDAY TO 7 AM PST SUNDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT DUE TO ICE AND SLICK
ROADS.
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-MTZ006-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
SOUTHERN CLEARWATER MOUNTAINS-BITTERROOT/SAPPHIRE MOUNTAINS-
1109 AM MST FRI DEC 6 2024 /1009 AM PST FRI DEC 6 2024/
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM MST /5 PM PST/
SATURDAY TO 8 AM MST /7 AM PST/ SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 90 PERCENT, AND 3 TO 6 INCHES OF SNOW IS 50 PERCENT. ICE
ACCUMULATIONS AROUND ONE TENTH OF AN INCH. WINDS GUSTING AS HIGH
AS 40 MPH IN THE MOUNTAINS.
* WHERE...ELK CITY, DIXIE, HIGHWAY 93 SULA TO LOST TRAIL PASS, LOLO
PASS, AND HIGHWAY 12 LOWELL TO LOLO PASS.
* WHEN...FROM 6 PM MST /5 PM PST/ SATURDAY TO 8 AM MST /7 AM PST/
SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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.
IDZ007-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
OROFINO/GRANGEVILLE REGION-
1009 AM PST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM SATURDAY TO 7 AM PST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 2 INCHES OF SNOW
IS 60 PERCENT. ICE ACCUMULATIONS UP TO ONE TENTH OF AN INCH.
* WHERE...GREER GRADE, CAMAS PRAIRIE, AND GRANGEVILLE AND VICINITY.
* WHEN...FROM 5 PM SATURDAY TO 7 AM PST SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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.
IDZ008-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
LOWER HELLS CANYON/SALMON RIVER REGION-
1009 AM PST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM SATURDAY TO 7 AM PST
SUNDAY ABOVE 3000 FEET...
* WHAT...MIXED PRECIPITATION EXPECTED ABOVE 3000 FEET. LIKELIHOOD OF
MINOR TO MODERATE IMPACTS FROM AROUND 1 TO 2 INCHES OF SNOW IS 60
PERCENT. ICE ACCUMULATIONS AROUND ONE TENTH OF AN INCH.
* WHERE...WHITE BIRD GRADE.
* WHEN...FROM 5 PM SATURDAY TO 7 AM PST SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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.
MTZ005-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
MISSOULA/BITTERROOT VALLEYS-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SATURDAY TO 8 AM MST
SUNDAY...
* WHAT...FREEZING RAIN EXPECTED. ICE ACCUMULATIONS OF A GLAZE UP TO
A TENTH OF AN INCH.
* WHERE...BITTERROOT VALLEY AND MISSOULA.
* WHEN...FROM 6 PM SATURDAY TO 8 AM MST SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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.
MTZ007-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
BUTTE/BLACKFOOT REGION-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SATURDAY TO 8 AM MST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 80 PERCENT, AND 3 TO 6 INCHES OF SNOW IS LESS THAN 10 PERCENT.
ICE ACCUMULATIONS AROUND A LIGHT GLAZE. WINDS GUSTING AS HIGH AS
45 MPH. A PERIOD OF INTENSE SNOW SHOWERS SATURDAY EVENING COULD
LEAD TO RAPIDLY CHANGING VISIBILITY.
* WHERE...HIGHWAY 12 GARRISON TO ELLISTON, HOMESTAKE PASS,
GEORGETOWN LAKE, MACDONALD PASS, AND BUTTE.
* WHEN...FROM 6 PM SATURDAY TO 8 AM MST SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. 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.
MTZ043-071815-
/O.NEW.KMSO.WW.Y.0055.241208T0100Z-241208T1500Z/
POTOMAC/SEELEY LAKE REGION-
1109 AM MST FRI DEC 6 2024
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SATURDAY TO 8 AM MST
SUNDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. LIKELIHOOD OF MINOR TO
MODERATE IMPACTS FROM ICE ACCUMULATIONS AND 1 TO 3 INCHES OF SNOW
IS 90 PERCENT, AND 3 TO 6 INCHES OF SNOW IS 40 PERCENT. ICE
ACCUMULATIONS AROUND ONE TENTH OF AN INCH.
* WHERE...HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO
CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH.
* WHEN...FROM 6 PM SATURDAY TO 8 AM MST SUNDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
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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