846
WWUS45 KMSO 091735
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1135 AM MDT FRI OCT 9 2026
MTZ007-101745-
/O.UPG.KMSO.WS.A.0005.261011T0000Z-261012T0000Z/
/O.NEW.KMSO.WS.W.0005.261011T0000Z-261012T1200Z/
BUTTE/BLACKFOOT REGION-
1135 AM MDT FRI OCT 9 2026
...WINTER STORM WARNING IN EFFECT FROM 6 PM SATURDAY TO 6 AM MDT
MONDAY...
* WHAT...HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 3 AND
9 INCHES. WINDS GUSTING AS HIGH AS 45 MPH.
* WHERE...MACDONALD PASS, GEORGETOWN LAKE, HIGHWAY 12 GARRISON TO
ELLISTON, BUTTE, AND HOMESTAKE PASS.
* WHEN...FROM 6 PM SATURDAY TO 6 AM MDT MONDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT.
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.
MTZ002-101745-
/O.EXB.KMSO.WW.Y.0024.261011T0000Z-261012T1200Z/
WEST GLACIER REGION-
1135 AM MDT FRI OCT 9 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SATURDAY TO 6 AM MDT
MONDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 1 AND 3
INCHES, WITH HIGHER AMOUNTS ABOVE VALLEY FLOORS AND IN GLACIER
NATIONAL PARK. WINDS GUSTING AS HIGH AS 45 MPH.
* WHERE...GLACIER NATIONAL PARK, MARIAS PASS, ESSEX, POLEBRIDGE, BAD
ROCK CANYON, AND HIGHWAY 83 BIGFORK TO SWAN LAKE.
* WHEN...FROM 6 PM SATURDAY TO 6 AM MDT MONDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS.
* ADDITIONAL DETAILS...PREPARE FOR DIFFICULT BACKCOUNTRY TRAVEL.
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.
MTZ006-043-101745-
/O.EXT.KMSO.WW.Y.0024.261011T0000Z-261012T1200Z/
BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION-
1135 AM MDT FRI OCT 9 2026
...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 PM SATURDAY TO 6 AM
MDT MONDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 2 AND 6
INCHES. WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...I-90 EAST MISSOULA TO BEARMOUTH, HIGHWAY 83 SEELEY LAKE TO
CONDON, HIGHWAY 200 BONNER TO GREENOUGH, LOLO PASS, AND HIGHWAY 93
SULA TO LOST TRAIL PASS.
* WHEN...FROM 6 PM SATURDAY TO 6 AM MDT MONDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT.
* ADDITIONAL DETAILS...PREPARE FOR DIFFICULT BACKCOUNTRY TRAVEL.
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.
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