Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
524 AM MST Sat Dec 27 2025
IDZ060-064-280000-
/O.CON.KPIH.WS.W.0012.000000T0000Z-251228T0000Z/
Bear River Range-Big Hole Mountains-
Including the cities of Emigration Summit and Victor
524 AM MST Sat Dec 27 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional accumulations 3 to 6 inches. Winds gusting
as high as 45 MPH.
* WHERE...Big Hole Mountains and Bear River Range.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
524 AM MST Sat Dec 27 2025
IDZ066-280000-
/O.CON.KPIH.WS.W.0012.000000T0000Z-251228T0000Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
524 AM MST Sat Dec 27 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional accumulations 1 to 3 inches. Winds gusting
as high as 35 MPH.
* WHERE...Centennial Mountains - Island Park.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
742 AM MST Sat Dec 27 2025
MTZ315-317-320-272100-
/O.CON.KTFX.WW.Y.0064.000000T0000Z-251227T2100Z/
Upper Blackfoot and MacDonald Pass-Little Belt and Highwood
Mountains-Big Belt, Bridger and Castle Mountains-
Including the following locations: Marysville, Battle Ridge Pass,
Flesher Pass, Monarch, MacDonald Pass, Bozeman Pass, Deep Creek
Pass, Trident, Maudlow, Lincoln, Kings Hill Pass, and Neihart
742 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional snow accumulations up to 2 inches. Winds
gusting as high as 45 mph.
* WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and
Highwood Mountains, and Upper Blackfoot and MacDonald Pass.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
742 AM MST Sat Dec 27 2025
MTZ326-271800-
/O.EXB.KTFX.WW.Y.0064.000000T0000Z-251227T1800Z/
Gallatin Valley-
Including the following locations: Gallatin Gateway and Bozeman
742 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING...
* WHAT...Snow. Additional snow accumulations up to two inches.
* WHERE...Gallatin Valley.
* WHEN...Until 11 AM MST this morning.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Areas most favored for additional snow are in
the southeastern portion of the Gallatin Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
742 AM MST Sat Dec 27 2025
MTZ327-330-272100-
/O.CON.KTFX.WW.Y.0064.000000T0000Z-251227T2100Z/
Northwest Beaverhead County-Gallatin and Madison County Mountains
and Centennial Mountains-
Including the following locations: Big Sky, Big Hole Pass,
Targhee Pass, Wise River, Chief Joseph Pass, Raynolds Pass,
Dewey, West Yellowstone, and Wisdom
742 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional snow accumulations up to two inches. Winds
gusting as high as 40 mph.
* WHERE...Gallatin and Madison County Mountains and Centennial
Mountains and Northwest Beaverhead County.
* WHEN...Until 2 PM MST this afternoon.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
AM
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
624 AM MST Sat Dec 27 2025
UTZ110>113-280430-
/O.CON.KSLC.WW.Y.0030.000000T0000Z-251228T1200Z/
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Including the following locations - Alta, Mantua, Scofield,
Brighton, Moon Lake, Mirror Lake Highway, Indian Canyon, and
Logan Summit
624 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...
* WHAT...Snow expected. Total snow accumulations of 6 to 12 inches
with locally higher amounts for the high Uintas, upper
Cottonwoods, and Bear River Range.
* WHERE...The Wasatch Mountains, Western Uinta Mountains, and
Wasatch Plateau/Book Cliffs.
* WHEN...Until 5 AM MST Sunday.
* IMPACTS...Winter driving conditions are expected.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
524 AM MST Sat Dec 27 2025
IDZ063-280000-
/O.CON.KPIH.WW.Y.0023.000000T0000Z-251228T0000Z/
Caribou Range-
Including the cities of Wayan and Swan Valley
524 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional accumulations 1 to 3 inches. Winds gusting
as high as 45 MPH.
* WHERE...Caribou Range.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Plan on slippery road conditions.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
Visit weather.gov/pocatello for more information.
KSmith
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
339 AM MST Sat Dec 27 2025
WYZ001-280000-
/O.CON.KRIW.WW.Y.0040.000000T0000Z-251228T0000Z/
Yellowstone National Park-
Including the cities of Old Faithful, Mammoth, and Lake
339 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional snow accumulations between 2 and 6 inches,
with the highest amounts in southwestern Yellowstone park. Winds
gusting as high as 40 mph.
* WHERE...Yellowstone National Park.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Travel will be difficult in the backcountry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
339 AM MST Sat Dec 27 2025
WYZ002-012-014-024-280000-
/O.CON.KRIW.WW.Y.0040.000000T0000Z-251228T0000Z/
Absaroka Mountains-Teton and Gros Ventre Mountains-Wind River
Mountains West-Salt River and Wyoming Ranges-
339 AM MST Sat Dec 27 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
* WHAT...Snow. Additional snow accumulations of 3 to 6 inches, with
locally higher amounts on the higher peaks of the Tetons and Wind
River Range. Winds gusting as high as 50 mph.
* WHERE...Wind River Mountains West, Absaroka Mountains, Teton and
Gros Ventre Mountains, and Salt River and Wyoming Ranges.
* WHEN...Until 5 PM MST this afternoon.
* IMPACTS...Travel could be very difficult, especially across
mountain passes.
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 .
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Hattings
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1140 AM MST Fri Dec 26 2025
...WIDESPREAD WINTER WEATHER AND WIND IMPACTS [UPDATE]...
.A series of cold fronts will move through the Northern Rockies
bringing wind and snow impacts beginning as early as late tonight
into Friday morning. Snow squalls are possible in western Montana
late Friday night into early Saturday morning with the arrival of a
strong cold front. A push of Arctic air will move westward across
the Continental Divide on Saturday bringing another uptick and
change in direction of winds with much colder temperatures to follow.
IDZ006-MTZ006-271845-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
Southern Clearwater Mountains-Bitterroot/Sapphire Mountains-
1140 AM MST Fri Dec 26 2025 /1040 AM PST Fri Dec 26 2025/
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST /7 PM
PST/ SATURDAY...
* WHAT...Snow expected. There is a likelihood of minor to moderate
winter weather impacts. Total snow accumulations between 2 and 12
inches. Winds gusting as high as 50 mph.
* WHERE...Elk City, Lolo Pass, Highway 93 Sula to Lost Trail Pass,
Highway 12 Lowell to Lolo Pass, and Dixie.
* WHEN...Until 8 PM MST /7 PM PST/ Saturday.
* IMPACTS...For MODERATE winter weather impacts, expect disruptions
to normal activities. Hazardous traveling conditions. Use extra
caution while driving. The hazardous conditions could impact the
Friday morning and evening commutes, especially over higher
passes. Gusty winds could bring down tree branches.
* ADDITIONAL DETAILS...Heavy snow bands and or snow squalls are
possible late Friday night into Saturday morning with the arrival
of a strong cold front.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1140 AM MST Fri Dec 26 2025
...WIDESPREAD WINTER WEATHER AND WIND IMPACTS [UPDATE]...
.A series of cold fronts will move through the Northern Rockies
bringing wind and snow impacts beginning as early as late tonight
into Friday morning. Snow squalls are possible in western Montana
late Friday night into early Saturday morning with the arrival of a
strong cold front. A push of Arctic air will move westward across
the Continental Divide on Saturday bringing another uptick and
change in direction of winds with much colder temperatures to follow.
IDZ009-010-271845-
/O.CON.KMSO.WW.Y.0053.000000T0000Z-251228T0300Z/
Western Lemhi County-Eastern Lemhi County-
1140 AM MST Fri Dec 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST
SATURDAY...
* WHAT...Snow expected. There is a chance of minor to moderate
winter weather impacts. Total snow accumulations up to 6 inches.
Winds gusting as high as 45 mph.
* WHERE...Bannock Pass, Lemhi Pass, Highway 28 Tendoy to Lone Pine,
Highway 93 Lost Trail Pass to Gibbonsville, Salmon, Shoup, and
Williams Creek Summit.
* WHEN...Until 8 PM MST Saturday.
* IMPACTS...For MINOR winter weather impacts, expect a few
inconveniences to normal activities. Use caution while driving.
Winter traveling conditions. The hazardous conditions could impact
the Friday evening commute, especially over higher passes. Gusty
winds could bring down tree branches.
* ADDITIONAL DETAILS...There is the potential for freezing rain in
lower elevations with the onset of precipitation Thursday night
into Friday morning.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1140 AM MST Fri Dec 26 2025
...WIDESPREAD WINTER WEATHER AND WIND IMPACTS [UPDATE]...
.A series of cold fronts will move through the Northern Rockies
bringing wind and snow impacts beginning as early as late tonight
into Friday morning. Snow squalls are possible in western Montana
late Friday night into early Saturday morning with the arrival of a
strong cold front. A push of Arctic air will move westward across
the Continental Divide on Saturday bringing another uptick and
change in direction of winds with much colder temperatures to follow.
MTZ007-271845-
/O.CON.KMSO.WW.Y.0053.251227T1200Z-251228T0300Z/
Butte/Blackfoot Region-
1140 AM MST Fri Dec 26 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 PM MST
SATURDAY...
* WHAT...Snow expected. There is a chance of minor winter weather
impacts. Total snow accumulations up to 3 inches. Winds gusting as
high as 45 mph.
* WHERE...MacDonald Pass, Georgetown Lake, Highway 12 Garrison to
Elliston, Homestake Pass, and Butte.
* WHEN...From 5 AM to 8 PM MST Saturday.
* IMPACTS...For MINOR winter weather impacts, expect a few
inconveniences to normal activities. Use caution while driving.
Winter traveling conditions.
* ADDITIONAL DETAILS...There is the potential for snow bands and or
snow squalls to impact the area late Friday night into Saturday
morning. Anticipate brief but rapid deterioration in visibility,
moderate to heavy snowfall intensity, and strong winds with any
banding or squalls. Much colder air from the northeast, through
the day on Saturday, increasing the risk for rapid freeze up of
any wet or slushy surfaces.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
Special Weather Statement
Special Weather Statement
National Weather Service Great Falls MT
707 AM MST Sat Dec 27 2025
MTZ325-326-271615-
Madison River Valley-Gallatin Valley-
Including the cities of Cameron, Ennis, Jeffers, McAllister,
Norris, Bozeman, and Gallatin Gateway
707 AM MST Sat Dec 27 2025
... Additional Mainly Light Snow This Morning...
A cold front continues to make slow progress across Southwest
Montana this morning. Bands of snow lingering along and behind
this front will result in additional snow to around an inch or so
at lower elevations through mid-morning. If driving this morning,
be prepared for reduced visibility and winter driving conditions.
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
325 AM MST Sat Dec 27 2025
WYZ001>020-022>030-281430-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
325 AM MST Sat Dec 27 2025
...Winter Weather Advisory Now in Effect Until 5 PM MST Saturday for
the Western Wyoming Mountains...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Snow continuing in the western mountains, spreading East of the
Divide this afternoon and tonight. Increasing wind will bring
drifting snow that will reduce visibility. Please see forecasts
and Winter Weather Advisories for details.
Tonight...Strong wind possible in northern Wyoming. A flash
freeze on roadways as temperatures sharply drop.
.DAYS TWO THROUGH SEVEN...Sunday through Friday.
Sunday through Friday...The probability of widespread hazardous
weather is low.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
