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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
225 AM MDT Sat Oct 4 2025

MTZ067-068-050830-
/O.CON.KBYZ.WS.W.0016.251004T1200Z-251006T0000Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
225 AM MDT Sat Oct 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO
6 PM MDT SUNDAY...

* WHAT...Moderate to heavy snow. Total snow accumulations between 10
  and 20 inches expected, greatest on north aspects of the
  Beartooths.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...From 6 AM this morning to 6 PM MDT Sunday.

* IMPACTS...Recreation in the high country will be impacted by heavy
  accumulating snow.

* ADDITIONAL DETAILS...Heaviest snow accumulations will occur above
  8000 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreation in the mountains will be hazardous due to harsh wintry
conditions. For the latest road conditions, call 5 1 1.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
221 AM MDT Sat Oct 4 2025

MTZ301-042330-
/O.CON.KTFX.WS.W.0015.251005T0600Z-251005T1800Z/
East Glacier Park Region-
Including the following locations: Babb, Logan Pass, Kiowa,
Marias Pass, Saint Mary, and East Glacier Park
221 AM MDT Sat Oct 4 2025

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

* WHAT...Heavy, wet snow expected. Total snow accumulations of 4 to
  8 inches above 5500 feet, including Logan Pass, with 2 to 5 inches
  below 5500 ft including Saint Mary and Babb. Winds gusting as high
  as 40 mph.

* WHERE...East Glacier Park Region Zone.

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

* IMPACTS...Cold, wet, and raw outdoor conditions developing today
  and worsening tonight will bring an increased risk for hypothermia
  to those not properly dressed for the weather. Roads in Glacier
  National Park, including Going-to-the-Sun Road and Logan Pass may
  become difficult to travel or impassible with snow also impacting
  US-89 from Kiowa north the International border late tonight into
  early Sunday morning.

* ADDITIONAL DETAILS...There is a 20-30% probability for a period of
  heavier snowfall rates to around 1 inch per hour between midnight
  and 4 AM Sunday for areas along US-89 from the Hudson Bay Divide
  north to the International Border.

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 can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.

Remember, a Winter Storm Warning means that there is at least an 80%
chance of impactful winter weather conditions during the warning
period.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1215 PM MDT Fri Oct 3 2025

MTZ002-041815-
/O.UPG.KMSO.WS.A.0007.251005T0600Z-251005T1800Z/
/O.NEW.KMSO.WS.W.0009.251005T0600Z-251005T1800Z/
West Glacier Region-
1215 PM MDT Fri Oct 3 2025

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT SATURDAY NIGHT 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 elevations around 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 Saturday Night 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.

&&

$$


Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
235 AM MDT Sat Oct 4 2025

WYZ002-015-050000-
/O.CON.KRIW.WW.Y.0026.251004T1800Z-251006T0000Z/
Absaroka Mountains-Wind River Mountains East-
235 AM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 PM
MDT SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 10 inches
  above 9000 feet with amounts of 10 to 15 inches above 10000 feet.
  Elevations between 7000 and 9000 feet can see total snow
  accumulations of a trace to 6 inches.

* WHERE...Wind River Mountains East and Absaroka Mountains.

* WHEN...From noon today to 6 PM MDT Sunday.

* IMPACTS...Travel could be difficult at times, especially over
  mountain passes and roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
235 AM MDT Sat Oct 4 2025

WYZ008-009-050000-
/O.CON.KRIW.WW.Y.0026.251005T0000Z-251006T0000Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
235 AM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SUNDAY...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 12
  inches above 9000 feet with localized amounts of 14 to 18 inches
  in the highest peaks. Elevations between 7000 and 9000 feet can
  see total snow accumulations of a trace to 6 inches.

* WHERE...Bighorn Mountains Southeast and Bighorn Mountains West.

* WHEN...From 6 PM this evening to 6 PM MDT Sunday.

* IMPACTS...Travel could be difficult at times especially along US
  14 over Granite Pass and US 16 over Powder River Pass.

* ADDITIONAL DETAILS...Heaviest snow expected to occur Sunday
  afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/riw/ .

Hattings

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
225 AM MDT Sat Oct 4 2025

MTZ171-WYZ198-050830-
/O.CON.KBYZ.WW.Y.0034.251005T0000Z-251006T0600Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
225 AM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO MIDNIGHT MDT SUNDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations between 6 and 12
  inches, greatest on north aspects. Winds gusting as high as 35 mph.

* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
  Northeast Bighorn Mountains.

* WHEN...From 6 PM this evening to midnight MDT Sunday Night.

* IMPACTS...Recreation in the high country will be impacted by heavy
  accumulating snow. Expect difficult travel conditions on US-14 and
  US-14A through Burgess Junction.

* ADDITIONAL DETAILS...Heaviest snow accumulations will occur above
  8000 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreation in the mountains will be hazardous due to harsh wintry
conditions. For the latest road conditions, call 5 1 1.

&&

$$

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

Lester

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
221 AM MDT Sat Oct 4 2025

MTZ302-042330-
/O.CON.KTFX.WW.Y.0042.251005T0600Z-251005T1800Z/
Northern High Plains-
Including the following locations: Dupuyer, Browning, and Heart
Butte
221 AM MDT Sat Oct 4 2025

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

* WHAT...Snow expected. Total snow accumulations up to two inches.
  Winds gusting as high as 35 mph.

* WHERE...Northern High Plains.

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

* IMPACTS...A period of winter travel conditions will develop late
  tonight through early Saturday morning including some slushy roads
  and periods of lower visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling. The latest road conditions can be
obtained by calling 5 1 1 or visiting the MDT Road Report website.

Remember, a Winter Weather Advisory means that there is at least an
80% chance of minor impacts due to winter weather conditions during
the advisory period.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
221 AM MDT Sat Oct 4 2025

MTZ307-317-318-042330-
/O.CON.KTFX.WW.Y.0042.251005T0600Z-251005T1800Z/
Southern Rocky Mountain Front-Little Belt and Highwood Mountains-
Snowy and Judith Mountains-
Including the following locations: Monarch, Neihart, Kings Hill
Pass, and Rogers Pass
221 AM MDT Sat Oct 4 2025

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

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches
  with highest amounts over Kings Hill. Winds gusting as high as 35
  mph.

* WHERE...The Highwood, Little Belt, Judith, and Snowy Mountains,
  and Southern Rocky Mountain Front.

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

* IMPACTS...Cold, wet and raw conditions will be hazardous for those
  not prepared. A period of winter travel conditions will develop
  late tonight through early Saturday morning including some slushy
  roads and periods of lower visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling. The latest road conditions can be
obtained by calling 5 1 1 or visiting the MDT Road Report website.

Remember, a Winter Weather Advisory means that there is at least an
80% chance of minor impacts due to winter weather conditions during
the advisory period.

&&

$$

Hoenisch

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
221 AM MDT Sat Oct 4 2025

MTZ330-042330-
/O.CON.KTFX.WW.Y.0042.251005T0000Z-251006T0000Z/
Gallatin and Madison County Mountains and Centennial Mountains-
Including the following locations: Raynolds Pass, Big Sky, West
Yellowstone, and Targhee Pass
221 AM MDT Sat Oct 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SUNDAY...

* WHAT...Heavy, wet snow expected. Total snow accumulations of 3 to
  7 inches above 6000 feet.

* WHERE...Gallatin and Madison County Mountains and Centennial
  Mountains.

* WHEN...From 6 PM this evening to 6 PM MDT Sunday.

* IMPACTS...Cold, wet, and raw outdoor conditions. Increased risk
  for hypothermia for those not properly dressed for the weather.
  Forest roads may become difficult to travel or impassible due to
  muddy and slushy conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling. The latest road conditions can be
obtained by calling 5 1 1 or visiting the MDT Road Report website.

Remember, a Winter Weather Advisory means that there is at least an
80% chance of minor impacts due to winter weather conditions during
the advisory period.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1215 PM MDT Fri Oct 3 2025

MTZ007-041815-
/O.NEW.KMSO.WW.Y.0036.251005T0600Z-251005T1800Z/
Butte/Blackfoot Region-
1215 PM MDT Fri Oct 3 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT SATURDAY NIGHT 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...Backcountry roads. Impacts due to snow are expected to be
  above pass levels.

* WHEN...From midnight Saturday Night 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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1215 PM MDT Fri Oct 3 2025

MTZ043-041815-
/O.NEW.KMSO.WW.Y.0036.251005T0600Z-251005T1800Z/
Potomac/Seeley Lake Region-
1215 PM MDT Fri Oct 3 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT SATURDAY NIGHT 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...Backcountry roads in the Potomac/Seeley Lake Region.

* WHEN...From midnight Saturday Night 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.

&&

$$


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
1250 AM MDT Sat Oct 4 2025

WYZ001>020-022>030-051300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
1250 AM MDT Sat Oct 4 2025

...Winter Weather Advisories in effect for Bighorns, Absarokas,
Tetons and eastern Wind River Range from this afternoon through
Sunday...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Saturday...Periods of rain likely across much of the area. Snow
likely in the mountains with several inches at the higher
elevations of the Absaroka, Wind River, and Bighorn Mountains,
with the worst conditions tonight. Please see Winter Weather
Products and forecasts for details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...Light to moderate snow continues in the mountains. Sub
freezing temperatures possible at lower elevations Sunday night.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE