985
WWUS45 KMSO 181850
WSWMSO
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
1250 PM MDT SAT OCT 18 2025
IDZ006-MTZ002-006-043-201500-
/O.NEW.KMSO.WW.Y.0038.251020T0300Z-251020T1500Z/
SOUTHERN CLEARWATER MOUNTAINS-WEST GLACIER REGION-
BITTERROOT/SAPPHIRE MOUNTAINS-POTOMAC/SEELEY LAKE REGION-
1250 PM MDT SAT OCT 18 2025 /1150 AM PDT SAT OCT 18 2025/
...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM MDT /8 PM PDT/ SUNDAY
TO 9 AM MDT /8 AM PDT/ MONDAY ABOVE 5,000 FT...
* WHAT...SNOW EXPECTED ABOVE 5,000 FT. THERE IS A LIKELIHOOD OF
MINOR TO MODERATE WINTER WEATHER IMPACTS. TOTAL SNOW ACCUMULATIONS
UP TO 5 INCHES. THERE IS POTENTIAL FOR 7 TO 12 INCHES IN VERY
REMOTE LOCATIONS AT THE HIGHEST ELEVATIONS. WINDS GUSTING AS HIGH
AS 35 MPH. IT IS GOING TO RAIN A LOT BEFORE TRANSITIONING TO SNOW.
* WHERE...THE HIGH ELEVATIONS OF THE BACK COUNTRY AND MOUNTAINS, AS
WELL AS HIGHWAY 93 SULA TO LOST TRAIL PASS.
* WHEN...FROM 9 PM MDT /8 PM PDT/ SUNDAY TO 9 AM MDT /8 AM PDT/
MONDAY.
* IMPACTS...WINTER TRAVELING CONDITIONS. FOR MODERATE WINTER WEATHER
IMPACTS, EXPECT DISRUPTIONS TO NORMAL ACTIVITIES. FOR MINOR WINTER
WEATHER IMPACTS, EXPECT A FEW INCONVENIENCES TO NORMAL ACTIVITIES.
USE CAUTION WHILE DRIVING. DIRT ROADS ON PUBLIC LANDS COULD BECOME
DIFFICULT OR DANGEROUS FOR TRAVEL AFTER HEAVY RAINS FOLLOWED BY
SNOW. COLD, WET, AND WINDY CONDITIONS WILL BE IDEAL FOR CAUSING
HYPOTHERMIA.
* ADDITIONAL DETAILS...ELEVATIONS BELOW 5,000 FT WILL STILL SEE
HEAVY RAIN AND POTENTIALLY SOME SNOW. CONDITIONS AT LOWER
ELEVATIONS WILL BE INCONVENIENT AND UNCOMFORTABLE.
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 COLD, WET WEATHER AND DIFFICULT BACK
COUNTRY TRAVEL CONDITIONS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page