682
WWUS45 KMSO 041838
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1238 PM MDT Sat Oct 4 2025

MTZ002-051800-
/O.CON.KMSO.WS.W.0009.251005T0600Z-251005T1800Z/
West Glacier Region-
1238 PM MDT Sat Oct 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON MDT SUNDAY ABOVE 5500 FEET...

* WHAT...Heavy snow expected above 5500 feet. Major winter weather
  impacts. Total snow accumulations of 4 to 8 inches expected. 15%
  chance for 10 inches of snow for similar elevations of Logan Pass.
  Higher amounts for elevations above 7000 feet. Cold, wet, and
  windy conditions expected, with east northeast winds in excess of
  30 mph will lead to concerns for hypothermia.

* WHERE...Glacier National Park higher elevations including
  Going-to-the-Sun Road and Logan Pass.

* WHEN...From midnight tonight to noon MDT Sunday.

* IMPACTS...For MAJOR winter weather impacts, 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.

* ADDITIONAL DETAILS...Consider delaying backcountry recreation.

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.

&&

$$

MTZ006-051800-
/O.EXB.KMSO.WW.Y.0036.251005T0900Z-251005T1800Z/
Bitterroot/Sapphire Mountains-
1238 PM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON MDT SUNDAY...

* WHAT...Snow expected. There is a likelihood of minor to moderate
  winter weather impacts. Total snow accumulations 1 to 5 inches,
  with a 50 percent probability for 5 inches above 7000 feet.

* WHERE...Backcountry roads in the Bitterroot and Sapphire Ranges,
  Skalkaho Pass, and Lost Trail Pass.

* WHEN...From 3 AM to noon MDT Sunday.

* IMPACTS...For MINOR winter weather impacts, expect a few
  inconveniences to normal activities. Use caution while driving.
  For MODERATE winter weather impacts, expect disruptions to normal
  activities. Hazardous traveling conditions. Use extra caution
  while driving.

* ADDITIONAL DETAILS...Pack additional supplies for cold, wet and
  breezy conditions in the backcountry.

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.

&&

$$

MTZ007-051800-
/O.CON.KMSO.WW.Y.0036.251005T0600Z-251005T1800Z/
Butte/Blackfoot Region-
1238 PM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO NOON MDT SUNDAY ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. There is a likelihood of
  minor to moderate winter weather impacts, for early season snow.
  Total snow accumulations of 2 to 4 inches.

* WHERE...Georgetown Lake and backcountry roads. Impacts due to snow
  are expected to be above pass levels.

* WHEN...From midnight tonight to noon MDT Sunday.

* IMPACTS...For MINOR winter weather impacts, expect a few
  inconveniences to normal activities. Use caution while driving.
  For MODERATE winter weather impacts, expect disruptions to normal
  activities. Hazardous traveling conditions. Use extra caution
  while driving. Closures and disruptions to infrastructure may
  occur.

* ADDITIONAL DETAILS...Pack additional supplies for cold, wet and
  breezy conditions in the backcountry.

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.

&&

$$

MTZ043-051800-
/O.CON.KMSO.WW.Y.0036.251005T0600Z-251005T1800Z/
Potomac/Seeley Lake Region-
1238 PM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO NOON MDT SUNDAY ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. There is a likelihood of
  minor to moderate winter weather impacts, for early season snow.
  Total snow accumulations of 2 to 4 inches.

* WHERE...Potomac/Seeley Lake Region.

* WHEN...From midnight tonight to noon MDT Sunday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
  to normal activities. Hazardous traveling conditions. Use extra
  caution while driving. Closures and disruptions to infrastructure
  may occur.

* ADDITIONAL DETAILS...Pack additional supplies for cold, wet and
  breezy conditions in the backcountry.

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.

&&

$$