WWA Summary for Winter Storm Watch Issued by GGW

Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
211 AM MDT Fri Oct 10 2025

MTZ301-307-102300-
/O.CON.KTFX.WS.A.0016.251012T0000Z-251013T1800Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Babb, Rogers Pass, Marias
Pass, Saint Mary, Logan Pass, East Glacier Park, and Kiowa
211 AM MDT Fri Oct 10 2025

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY EVENING
THROUGH MONDAY MORNING...

* WHAT...Heavy, wet snow possible. Total snow accumulations between
  7 and 14 inches possible above 6000 ft with 3 to 7 inches possible
  below 6000 ft. Winds could gust as high as 40 mph.

* WHERE...The Continental Divide along the Rocky Mountain Front.

* WHEN...From Saturday evening through Monday morning.

* IMPACTS...Cold, wet, and snowy outdoor conditions develop Saturday
  night and worsen through Monday morning bringing an increased risk
  for hypothermia and frostbite to those not properly dressed for
  the weather. Roads in Glacier National Park and forest roads over
  the higher terrain of Teton and central and northern Lewis and
  Clark County, including Going-to-the-Sun Road and Logan Pass, may
  become difficult to impossible to travel. The heavy, wet snow may
  cause power outages and other infrastructure failures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
211 AM MDT Fri Oct 10 2025

MTZ317-330-102300-
/O.CON.KTFX.WS.A.0016.251012T0000Z-251013T1200Z/
Little Belt and Highwood Mountains-Gallatin and Madison County
Mountains and Centennial Mountains-
Including the following locations: Raynolds Pass, Kings Hill
Pass, Targhee Pass, Monarch, Neihart, West Yellowstone, and Big
Sky
211 AM MDT Fri Oct 10 2025

...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY EVENING
THROUGH LATE SUNDAY NIGHT...

* WHAT...Heavy, wet snow possible. Total snow accumulations of 4 to
  12 inches possible at and above pass level.

* WHERE...Little Belt and Highwood Mountains and Gallatin and
  Madison County Mountains and Centennial Mountains.

* WHEN...From Saturday evening through late Sunday night.

* IMPACTS...Cold, wet, and snowy outdoor conditions develop by
  Sunday morning and continue through Monday morning bringing an
  increased risk for hypothermia and frostbite to those not properly
  dressed for the weather. The heavy, wet snow may cause power
  outages and other infrastructure failures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.

&&

$$

RG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
131 AM MDT Fri Oct 10 2025

MTZ068-110745-
/O.NEW.KBYZ.WS.A.0016.251012T0300Z-251013T0300Z/
Crazy Mountains-
131 AM MDT Fri Oct 10 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY
EVENING...

* WHAT...Heavy snow and blowing snow possible. Total snow
  accumulations between 10 and 15 inches possible. Winds could gust
  as high as 40 mph.

* WHERE...Crazy Mountains.

* WHEN...From Saturday evening through Sunday evening.

* IMPACTS...Recreation in the high country could be impacted by
  heavy accumulating snow with blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Tesar

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

IDZ005-006-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
1116 AM PDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
MONDAY MORNING ABOVE 5500 FEET...

* WHAT...Heavy snow possible above 5500 feet. There is a chance of
  moderate to isolated major winter weather impacts. Total snow
  accumulations between 1 and 6 inches possible.

* WHERE...Dixie area and higher elevations near the Montana state
  line.

* WHEN...From Saturday afternoon through Monday morning.

* 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

IDZ009-010-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1200Z/
Western Lemhi County-Eastern Lemhi County-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH LATE
SUNDAY NIGHT ABOVE 5500 FEET...

* WHAT...Heavy snow possible above 5500 feet. There is a chance of
  moderate to isolated major winter weather impacts. Total snow
  accumulations between 1 and 6 inches possible.

* WHERE...Highway 93 Lost Trail Pass to Gibbonsville, Highway 28
  Tendoy to Lone Pine, Bannock Pass, Williams Creek Summit, and
  Lemhi Pass.

* WHEN...From Saturday evening through late Sunday night.

* 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...There will also be a potential for some icy
  higher elevation roads and passes as melting snow refreezes due to
  falling temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

MTZ001-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
Kootenai/Cabinet Region-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING...

* WHAT...Heavy snow possible. There is a chance of moderate to major
  winter weather impacts. Total snow accumulations between 2 and 8
  inches possible.

* WHERE...Highway 37 Eureka to Libby, Highway 2 Kalispell to Libby,
  Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish.

* WHEN...From Saturday evening through Monday morning.

* 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. 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...There will also be a potential for some icy
  higher elevation roads and passes as melting snow refreezes due to
  falling temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

MTZ002-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
West Glacier Region-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING...

* WHAT...Heavy snow possible. There is a chance of moderate to major
  winter weather impacts. Total snow accumulations between 2 and 12
  inches possible.

* WHERE...Polebridge, Bad Rock Canyon, Essex, Highway 83 Bigfork to
  Swan Lake, Glacier National Park higher elevations including
  Going-to-the-Sun Road and Logan Pass, and Marias Pass.

* WHEN...From Saturday evening through Monday morning.

* 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. 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...There will also be a potential for some icy
  roads and bridges as melting snow refreezes due to falling
  temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

MTZ004-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
Lower Clark Fork Region-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING ABOVE 4500 FEET...

* WHAT...Heavy snow possible above 4500 feet. There is a chance of
  moderate to isolated major winter weather impacts. Total snow
  accumulations up to 5 inches possible.

* WHERE...Lower Clark Fork Region including Lookout Pass on I-90.

* WHEN...From Saturday evening through Monday morning.

* 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...There will also be a potential for some icy
  higher elevation roads and passes as melting snow refreezes due to
  falling temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

MTZ006-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
Bitterroot/Sapphire Mountains-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING ABOVE 5500 FEET...

* WHAT...Heavy snow possible above 5500 feet. There is a chance of
  moderate to isolated major winter weather impacts. Total snow
  accumulations between 2 and 6 inches possible.

* WHERE...Highway 93 Sula to Lost Trail Pass.

* WHEN...From Saturday evening through Monday morning.

* 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...There will also be a potential for some icy
  higher elevation roads and passes as melting snow refreezes due to
  falling temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

MTZ007-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
Butte/Blackfoot Region-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING ABOVE 5000 FEET...

* WHAT...Heavy snow possible above 5000 feet. There is a chance of
  moderate to isolated major winter weather impacts. Total snow
  accumulations between 2 and 6 inches possible.

* WHERE...MacDonald Pass, Homestake Pass, Butte, and Georgetown Lake.

* WHEN...From Saturday evening through Monday morning.

* 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...There will also be a potential for some icy
  higher elevation roads and passes as melting snow refreezes due to
  falling temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1216 PM MDT Thu Oct 9 2025

MTZ043-111030-
/O.NEW.KMSO.WS.A.0008.251012T0000Z-251013T1800Z/
Potomac/Seeley Lake Region-
1216 PM MDT Thu Oct 9 2025

...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow possible above 4000 feet. There is a chance of
  moderate to major winter weather impacts. Total snow accumulations
  between 1 and 8 inches possible.

* WHERE...Highway 83 Seeley Lake to Condon.

* WHEN...From Saturday evening through Monday morning.

* 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. 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. The hazardous conditions could impact the Monday
  morning commute, especially over higher passes.

* ADDITIONAL DETAILS...There will also be a potential for some icy
  higher elevation roads as melting snow refreezes due to falling
  temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$