Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ307-315-322-020600-
/O.CON.KTFX.WS.W.0009.000000T0000Z-250402T0600Z/
Southern Rocky Mountain Front-Upper Blackfoot and MacDonald Pass-
Elkhorn and Boulder Mountains-
Including the following locations: MacDonald Pass, Corbin,
Marysville, Homestake Pass, Wickes, Clancy, Rogers Pass, Flesher
Pass, Elk Park Pass, Montana City, Lincoln, and Boulder
343 PM MDT Tue Apr 1 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL MIDNIGHT MDT TONIGHT...
* WHAT...Heavy snow. Additional snow accumulations between 3 and 6
inches.
* WHERE...Elkhorn and Boulder Mountains, Upper Blackfoot and
MacDonald Pass, and Southern Rocky Mountain Front.
* WHEN...Until midnight MDT tonight.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ308-316-020600-
/O.CON.KTFX.WS.W.0009.000000T0000Z-250402T0600Z/
Southern High Plains-Gates of the Mountains-
Including the following locations: Bynum, Craig, Wolf Creek,
Canyon Creek, Choteau, and Pendroy
343 PM MDT Tue Apr 1 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL MIDNIGHT MDT TONIGHT...
* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches.
* WHERE...Gates of the Mountains and Southern High Plains.
* WHEN...Until midnight MDT tonight.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ313-314-021200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-250402T1200Z/
Judith Basin County and Judith Gap-Fergus County below 4500ft-
Including the following locations: Moccasin, Benchland, Hobson,
Lewistown, Windham, Raynesford, Stanford, Geyser, and Hilger
343 PM MDT Tue Apr 1 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL 6 AM MDT WEDNESDAY...
* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches.
* WHERE...Fergus County below 4500ft and Judith Basin County and
Judith Gap.
* WHEN...Until 6 AM MDT Wednesday.
* IMPACTS...Travel could be difficult.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ317-321-021200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-250402T1200Z/
Little Belt and Highwood Mountains-Meagher County Valleys-
Including the following locations: Neihart, White Sulphur
Springs, Monarch, Kings Hill Pass, Martinsdale, Ringling, and
Checkerboard
343 PM MDT Tue Apr 1 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL 6 AM MDT WEDNESDAY...
* WHAT...Heavy snow. Additional snow accumulations between 3 and 6
inches.
* WHERE...Little Belt and Highwood Mountains and Meagher County
Valleys.
* WHEN...Until 6 AM MDT Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. The latest road conditions can
be obtained by calling 5 1 1 or visiting the MDT Road Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ320-326-330-021200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-250402T1200Z/
Big Belt, Bridger and Castle Mountains-Gallatin Valley-Gallatin
and Madison County Mountains and Centennial Mountains-
Including the following locations: Raynolds Pass, Maudlow,
Gallatin Gateway, Bozeman Pass, Trident, Deep Creek Pass, Battle
Ridge Pass, Bozeman, Big Sky, West Yellowstone, and Targhee Pass
343 PM MDT Tue Apr 1 2025
...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL 6 AM MDT WEDNESDAY...
* WHAT...Heavy snow. Additional snow accumulations of 2 to 5 inches
at lower elevations, and 5 to 10 inches in the mountains.
* WHERE...Big Belt, Bridger and Castle Mountains, Gallatin Valley,
and Gallatin and Madison County Mountains and Centennial Mountains.
* WHEN...Until 6 AM MDT Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
250 PM MDT Tue Apr 1 2025
MTZ067-068-022100-
/O.CON.KBYZ.WS.W.0010.000000T0000Z-250403T0000Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
250 PM MDT Tue Apr 1 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT WEDNESDAY...
* WHAT...Periods of heavy snow. Additional snow accumulations
between 6 and 12 inches. Winds gusting as high as 40 mph.
* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.
* WHEN...Until 6 PM MDT Wednesday.
* IMPACTS...Recreation in the high country will be impacted by
periods of heavy accumulating snow. Avalanche danger may increase.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you are going to recreate in the high country during this period,
make sure to let someone know what your plans are in the event you
become stranded.
&&
$$
Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
537 PM MDT Tue Apr 1 2025
WYZ008-009-021500-
/O.CON.KRIW.WW.Y.0020.000000T0000Z-250403T0000Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
537 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...
* WHAT...Snow expected with total snow accumulations between 6 and
12 inches across the mountain passes. Winds gusting as high as 40
mph.
* WHERE...Bighorn Mountains Southeast and Bighorn Mountains West.
* WHEN...Until 6 PM MDT Wednesday.
* IMPACTS...Travel could be difficult and could impact the Tuesday
evening and Wednesday morning commutes, especially across Powder
River and Granite 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 .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ318-021200-
/O.CON.KTFX.WW.Y.0030.000000T0000Z-250402T1200Z/
Snowy and Judith Mountains-
343 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT
UNTIL 6 AM MDT WEDNESDAY...
* WHAT...Snow. Additional snow accumulations between 3 and 6 inches.
* WHERE...Snowy and Judith Mountains.
* WHEN...Until 6 AM MDT Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ319-323>325-021200-
/O.CON.KTFX.WW.Y.0030.000000T0000Z-250402T1200Z/
Helena Valley-Canyon Ferry Area-Missouri Headwaters-Madison River
Valley-
Including the following locations: Pony, Jeffers, Harrison,
Cameron, Three Forks, Toston, Townsend, Norris, Willow Creek,
Ennis, Helena, Winston, McAllister, and Whitehall
343 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT
UNTIL 6 AM MDT WEDNESDAY...
* WHAT...Snow. Additional snow accumulations 2 to 4 inches.
* WHERE...Canyon Ferry Area, Helena Valley, Madison River Valley,
and Missouri Headwaters.
* WHEN...Until 6 AM MDT Wednesday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
343 PM MDT Tue Apr 1 2025
MTZ327-020600-
/O.CON.KTFX.WW.Y.0030.000000T0000Z-250402T0600Z/
Northwest Beaverhead County-
Including the following locations: Dewey, Wisdom, Chief Joseph
Pass, Wise River, and Big Hole Pass
343 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT
UNTIL MIDNIGHT MDT TONIGHT...
* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.
* WHERE...Northwest Beaverhead County.
* WHEN...Until midnight MDT tonight.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...Some roadways could become icy overnight, as
wet roadways could freeze over.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.
&&
$$
Brusda
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
250 PM MDT Tue Apr 1 2025
MTZ040-063>066-141-172-228-022100-
/O.CON.KBYZ.WW.Y.0023.000000T0000Z-250403T0000Z/
Northern Park-Judith Gap-Paradise Valley-Livingston Area-
Beartooth Foothills-Northern Sweet Grass-Melville Foothills-
Southern Wheatland-
Including the locations of Shawmut, Twodot, Melville, Nye, Clyde
Park, Springdale, Livingston, Fishtail, Judith Gap, Wilsall, Big
Timber, Harlowton, McLeod, and Emigrant
250 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...
* WHAT...Periods of snow. Total snow accumulations between 1 and 4
inches with higher totals possible near the mountains. Winds
gusting as high as 40 mph.
* WHERE...Portions of central and south central Montana.
* WHEN...Until 6 PM MDT Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the commutes this evening and Wednesday.
* ADDITIONAL DETAILS...The greatest snow accumulations will occur on
grassy surfaces.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
250 PM MDT Tue Apr 1 2025
MTZ056-022100-
/O.CON.KBYZ.WW.Y.0023.250402T0000Z-250403T0000Z/
Red Lodge Foothills-
Including the locations of Red Lodge, Roberts, and Roscoe
250 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT WEDNESDAY...
* WHAT...Snow expected. Total snow accumulations between 2 and 5
inches. Winds gusting as high as 30 mph.
* WHERE...Red Lodge Foothills.
* WHEN...From 6 PM this evening to 6 PM MDT Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday morning commute.
* ADDITIONAL DETAILS...The greatest snow accumulations will occur on
grassy surfaces.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
250 PM MDT Tue Apr 1 2025
MTZ138-WYZ199-022100-
/O.CON.KBYZ.WW.Y.0023.250402T0000Z-250402T2100Z/
Southern Big Horn-Sheridan Foothills-
Including the locations of Sheridan, Ranchester, Big Horn,
Clearmont, Lodge Grass, Pryor, Wyola, and Dayton
250 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 3 PM MDT WEDNESDAY...
* WHAT...Snow expected. Total snow accumulations between 1 and 4
inches, greatest near the mountains. Winds gusting as high as 35
mph.
* WHERE...In Montana, Southern Big Horn. In Wyoming, Sheridan
Foothills.
* WHEN...From 6 PM this evening to 3 PM MDT Wednesday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the commutes this evening and Wednesday
morning.
* ADDITIONAL DETAILS...The greatest snow accumulations will occur on
grassy surfaces.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Arends
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
250 PM MDT Tue Apr 1 2025
MTZ171-WYZ198-022100-
/O.CON.KBYZ.WW.Y.0023.000000T0000Z-250403T0000Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Story and Burgess Jct
250 PM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...
* WHAT...Periods of snow. Total snow accumulations between 6 and 12
inches. Winds gusting as high as 40 mph.
* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
Northeast Bighorn Mountains.
* WHEN...Until 6 PM MDT Wednesday.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons should consider delaying travel if possible. Travel will be
difficult, especially along Highway 14 through the Bighorn Mountains.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
148 PM MDT Mon Mar 31 2025
MTZ007-011800-
/O.CON.KMSO.WW.Y.0026.250401T0000Z-250402T0600Z/
Butte/Blackfoot Region-
148 PM MDT Mon Mar 31 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO MIDNIGHT MDT TUESDAY NIGHT...
* WHAT...Snow expected. Likelihood of minor impacts from snow is
greater than 60 percent and 30 percent for moderate impacts. Total
snow accumulations between 2 and 4 inches for lower elevations
with 5 to 10 inches on the passes. Snowfall rates up to 1 inch per
hour with heavier showers this evening through Tuesday.
* WHERE...MacDonald Pass, Butte, Georgetown Lake, Homestake Pass,
and Highway 12 Garrison to Elliston.
* WHEN...From 6 PM this evening to midnight MDT Tuesday Night.
* IMPACTS...Winter traveling conditions. For MINOR impacts from
snow, expect a few inconveniences to normal activities. Use
caution while driving. The hazardous conditions could impact the
Tuesday morning and evening commutes, especially over higher
passes. For MODERATE impacts from snow, expect disruptions to
normal activities. Hazardous travel conditions and localized road
closure potential.
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.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
148 PM MDT Mon Mar 31 2025
MTZ043-011800-
/O.CON.KMSO.WW.Y.0026.250401T0000Z-250402T0600Z/
Potomac/Seeley Lake Region-
148 PM MDT Mon Mar 31 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO MIDNIGHT MDT TUESDAY NIGHT...
* WHAT...Snow expected. Likelihood of minor impacts from snow is
greater than 60 percent. Total snow accumulations between 1 and 2
inches for lower elevations with 5 to 10 inches in the mountains.
The higher elevations of the Mission Mountains could receive over
a foot of snow.
* WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to
Condon, and I-90 East Missoula to Bearmouth.
* WHEN...From 6 PM this evening to midnight MDT Tuesday Night.
* IMPACTS...Winter traveling conditions. For MINOR impacts from
snow, expect a few inconveniences to normal activities. Use
caution while driving.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.
&&
$$
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Riverton WY
144 AM MDT Tue Apr 1 2025
WYZ001>020-022>030-021145-
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-
144 AM MDT Tue Apr 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT
WEDNESDAY...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and Tonight.
Snow continues across western mountains shifting to the Bighorns in
the afternoon.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Snow lingers across the Bighorns Wednesday diminishing into Thursday
and Friday. Dry and warming trend Sunday onward.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
