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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
255 AM MDT Mon Mar 31 2025

MTZ317-320-330-010000-
/O.UPG.KTFX.WS.A.0011.250401T0000Z-250402T0600Z/
/O.NEW.KTFX.WS.W.0009.250401T0000Z-250402T0600Z/
Little Belt and Highwood Mountains-Big Belt, Bridger and Castle
Mountains-Gallatin and Madison County Mountains and Centennial
Mountains-
Including the following locations: Trident, Battle Ridge Pass,
Maudlow, Neihart, Kings Hill Pass, Big Sky, Deep Creek Pass, West
Yellowstone, Raynolds Pass, Monarch, Bozeman Pass, and Targhee
Pass
255 AM MDT Mon Mar 31 2025

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT
MDT TUESDAY NIGHT...

* WHAT...Heavy snow possible. Total snow accumulations between 6 and
  12 inches possible.

* WHERE...Big Belt, Bridger and Castle Mountains, Little Belt and
  Highwood Mountains, and Gallatin and Madison County Mountains and
  Centennial Mountains.

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

* IMPACTS...Travel could be difficult.

* ADDITIONAL DETAILS...The heaviest snowfall is most likely to occur
  in the higher terrain, including some of the mountain passes.

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 Billings MT
243 AM MDT Mon Mar 31 2025

MTZ067-068-010845-
/O.UPG.KBYZ.WS.A.0010.250401T0000Z-250403T0000Z/
/O.NEW.KBYZ.WS.W.0010.250401T0000Z-250403T0000Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
243 AM MDT Mon Mar 31 2025

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT
WEDNESDAY...

* WHAT...Periods of heavy snow expected. Total snow accumulations
  between 8 and 16 inches.

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

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

* IMPACTS...Recreation in the high country will be impacted by
  periods of heavy accumulating snow. Avalanche danger may increase.

* ADDITIONAL DETAILS...The heaviest snowfall will occur during the
  day Tuesday.

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 Salt Lake City UT
303 AM MDT Mon Mar 31 2025

UTZ108-010015-
/O.CAN.KSLC.WW.Y.0016.250402T0000Z-250403T0000Z/
/O.NEW.KSLC.WW.Y.0017.250401T0000Z-250402T0000Z/
Wasatch Back-
Including the following locations - Huntsville, Park City, and
Heber City
303 AM MDT Mon Mar 31 2025

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

* WHAT...Snow expected. Total snow accumulations between 2 to 5
  inches, locally up to 7 inches Park City area.

* WHERE...Wasatch Back.

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

* IMPACTS...Winter driving conditions are expected. The hazardous
  conditions could impact the Monday evening and Tuesday morning
  commutes.

* ADDITIONAL DETAILS...A strong cold front will gradually lower snow
  levels from around 7000 feet near 6 PM to 5500 feet around 8 PM to
  below 5000 feet after 10 PM.

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 Salt Lake City UT
303 AM MDT Mon Mar 31 2025

UTZ110>113-117-010015-
/O.CON.KSLC.WW.Y.0016.250401T0000Z-250403T0000Z/
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-Central
Mountains-
Including the following locations - Mantua, Joes Valley, Moon
Lake, Brighton, Cove Fort, Logan Summit, Indian Canyon, Fish
Lake, Scofield, Mirror Lake Highway, and Alta
303 AM MDT Mon Mar 31 2025

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

* WHAT...Snow expected. Total snow accumulations between 6 and 12
  inches, locally higher amounts up to 20 inches in the Upper
  Cottonwoods and Ogden area mountains.

* WHERE...The Wasatch Mountains, Western Uinta Mountains, Wasatch
  Plateau/Book Cliffs, and Central Mountains.

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

* IMPACTS...Winter driving conditions can be expected on most
  mountain routes, especially Big and Little Cottonwood Canyons,
  Daniels Summit, SR-31 Summit and Soldier Summit. Traction law
  restrictions may be enacted.

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 Salt Lake City UT
303 AM MDT Mon Mar 31 2025

WYZ021-010015-
/O.EXB.KSLC.WW.Y.0016.250401T0000Z-250402T0000Z/
Southwest Wyoming-
Including the following locations - Evanston and Lyman
303 AM MDT Mon Mar 31 2025

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

* WHAT...Snow expected. Total snow accumulations between 2 to 5
  inches, locally up to 10 inches southern Uinta County.

* WHERE...Southwest Wyoming.

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

* IMPACTS...Winter driving conditions are expected.

* ADDITIONAL DETAILS...A strong cold front will gradually lower snow
  levels from around 7000 feet near 6 PM to 5500 feet around 8 PM to
  below 5000 feet after 10 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For winter road
conditions from the Wyoming Department of Transportation, visit
http://www.wyoroad.info or dial 511.

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 Great Falls MT
255 AM MDT Mon Mar 31 2025

MTZ307-312>316-318-321-326-010000-
/O.NEW.KTFX.WW.Y.0030.250401T0000Z-250402T0600Z/
Southern Rocky Mountain Front-Cascade County below 5000ft-Judith
Basin County and Judith Gap-Fergus County below 4500ft-Upper
Blackfoot and MacDonald Pass-Gates of the Mountains-Snowy and
Judith Mountains-Meagher County Valleys-Gallatin Valley-
Including the following locations: Rogers Pass, Craig, Ringling,
Great Falls, Bozeman, Martinsdale, Raynesford, Checkerboard,
Marysville, Lincoln, Hilger, Wolf Creek, Moccasin, Windham,
Gallatin Gateway, Flesher Pass, Hobson, Geyser, MacDonald Pass,
White Sulphur Springs, Benchland, Lewistown, Stanford, and Canyon
Creek
255 AM MDT Mon Mar 31 2025

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

* WHAT...Snow expected. Total snow accumulations between 1 and 4
  inches, with isolated higher amounts possible.

* WHERE...Portions of central, north central, and southwest Montana.

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

* IMPACTS...Travel could be very difficult. The hazardous conditions
  could impact the Monday evening and Tuesday morning commutes.

* ADDITIONAL DETAILS...An area of heavy snow is possible with this
  system, particularly north of the Little Belt and Snowy Mountains
  including Lewistown and Great Falls. Should this materialize, snow
  amounts could exceed 6 inches.

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.

To see a graphical representation of the degree of stress on young
livestock please visit our webpage and select Local Programs then
Cold Air Advisory for Newborn Livestock.

&&

$$

Ludwig

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
247 AM MDT Mon Mar 31 2025

MTZ006-011800-
/O.NEW.KMSO.WW.Y.0026.250401T0000Z-250401T1800Z/
Bitterroot/Sapphire Mountains-
247 AM MDT Mon Mar 31 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON
MDT TUESDAY...

* WHAT...Snow expected. Likelihood of minor impacts from snow is
  greater than 60 percent. Total snow accumulations between 2 and 6
  inches. Snowfall rates up to 1 inch per hour with heavier showers.

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

* WHEN...From 6 PM this evening to noon MDT Tuesday.

* 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 commute, especially over higher passes.

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
247 AM MDT Mon Mar 31 2025

MTZ007-020600-
/O.NEW.KMSO.WW.Y.0026.250401T0000Z-250402T0600Z/
Butte/Blackfoot Region-
247 AM MDT Mon Mar 31 2025

...WINTER WEATHER ADVISORY 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...I-90 from Drummond to Homestake Pass. MacDonald Pass,
  Highway 12 Garrison to Elliston, Georgetown Lake, Butte, and
  Homestake Pass.

* 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 Pocatello ID
242 AM MDT Mon Mar 31 2025

IDZ060-063-064-066-067-010000-
/O.CON.KPIH.WW.Y.0016.000000T0000Z-250402T0000Z/
Bear River Range-Caribou Range-Big Hole Mountains-Centennial
Mountains - Island Park-Beaverhead - Lemhi Highlands-
Including the cities of Edie School, Swan Valley, Victor, Island
Park, Wayan, Kilgore, Emigration Summit, Spencer, Small, and
Dubois
242 AM MDT Mon Mar 31 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
TUESDAY...

* WHAT...Snow. Total snow accumulations of 3 to 6 inches below 7000
  feet and 6 to 12 inches above 7000 feet.

* WHERE...Beaverhead - Lemhi Highlands, Big Hole Mountains,
  Centennial Mountains - Island Park, Bear River Range, and Caribou
  Range.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel could be difficult at times, especially over
  mountain passes. The hazardous conditions could impact the Monday
  morning and evening commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
242 AM MDT Mon Mar 31 2025

IDZ071>074-010000-
/O.CON.KPIH.WW.Y.0016.000000T0000Z-250401T0000Z/
Frank Church Wilderness-Sawtooth/Stanley Basin-Sun Valley Region-
Big Lost Highlands/Copper Basin-
Including the cities of Ketchum, Copper Basin, Sun Valley,
Galena, Clayton, and Stanley
242 AM MDT Mon Mar 31 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow. Total snow accumulations of 3 to 6 inches below 7000
  feet and 6 to 12 inches above 7000 feet.

* WHERE...Big Lost Highlands/Copper Basin, Frank Church Wilderness,
  Sawtooth/Stanley Basin, and Sun Valley Region.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel could be difficult at times, especially over
  mountain passes. The hazardous conditions could impact the Monday
  morning and evening commutes.

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.

MacKay

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1252 AM MDT Mon Mar 31 2025

WYZ001-012-014-024-312200-
/O.NEW.KRIW.WW.Y.0020.250331T1200Z-250402T0000Z/
Yellowstone National Park-Teton and Gros Ventre Mountains-Wind
River Mountains West-Salt River and Wyoming Ranges-
Including the cities of Mammoth, Lake, and Old Faithful
1252 AM MDT Mon Mar 31 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 PM
MDT TUESDAY...

* WHAT...Snow expected. Total snow accumulations between 4 and 8
  inches in mountain valleys, and 8 to 12 inches for mountains and
  passes, with localized higher totals on the highest peaks. Winds
  gusting as high as 30 to 40 mph.

* WHERE...Wind River Mountains West, Teton and Gros Ventre
  Mountains, Yellowstone National Park, and Salt River and Wyoming
  Ranges.

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

* IMPACTS...Expect winter travel conditions over 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/ .

Lowe


Wind Advisory


URGENT - WEATHER MESSAGE
National Weather Service Elko NV
103 AM PDT Mon Mar 31 2025

NVZ030-031-033>041-312315-
/O.CON.KLKN.WI.Y.0014.250331T1500Z-250401T0800Z/
Humboldt-Northern Elko-Southeastern Elko-Ruby Mountains and East
Humboldt Range in Elko-White Pine-Northern Lander and Northern
Eureka-Southern Lander and Southern Eureka-Southwest Elko-South
Central Elko-Northwestern Nye-Northeastern Nye-
Including the cities of Valmy, South Fork, Gibbs Ranch,
Manhattan, Emigrant Pass, Eureka Airport, Winnemucca, Midas,
Oasis, Ely, Mountain City, McGill, Tonopah, Dunphy, Blue Eagle
Ranch, Jiggs, Palisade, Hickison Summit, Argenta, Ryndon,
Duckwater, Spring Creek, Charleston, Lamoille, Pinto Summit, Ruby
Lake, Battle Mountain, Elko, Beowawe, Tuscarora, Garden Pass,
Cherry Creek, Ruth, Round Mountain, Preston, Diamond Valley,
Grass Valley, Lund, Owyhee, Golconda, West Wendover, Crescent
Valley, Eureka, Lee, Ely Airport, Jarbidge, and Dufferena
103 AM PDT Mon Mar 31 2025

...WIND ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 1 AM
PDT TUESDAY...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 55 mph
  expected.

* WHERE...Portions of eastern, north central, northeast, northwest,
  and south central Nevada.

* WHEN...From 8 AM this morning to 1 AM PDT Tuesday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...Strong winds could create areas of localized
  blowing dust which will reduce visibility across area roadways.
  Please use caution and reduce speed should you encounter any areas
  of dust.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Secure outdoor objects.

&&

$$

98


Special Weather Statement


Special Weather Statement
National Weather Service Great Falls MT
833 AM MDT Mon Mar 31 2025

MTZ330-311530-
Gallatin and Madison County Mountains and Centennial Mountains MT-
833 AM MDT Mon Mar 31 2025

...MODERATE SNOW SHOWERS TO IMPACT SOUTHEASTERN
MADISON...SOUTHEASTERN BEAVERHEAD AND SOUTH CENTRAL GALLATIN
COUNTIES THROUGH 930 AM MDT...

At 830 AM MDT, Doppler radar was tracking moderate snow showers
about 17 miles south of Henrys Lake, moving northeast at 35 mph.

HAZARD...Expect visibility below one mile at times, with roadways
         becoming snow covered and slippery.

SOURCE...Radar indicated.

IMPACT...The reduced visibility will create poor driving conditions
         this morning.

Locations impacted include...
Targhee Pass, Raynolds Pass, Lakeview, Yellowstone Village, West
Yellowstone, and Red Rock Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those traveling should be prepared for quickly changing road
conditions.

&&

LAT...LON 4475 11138 4471 11141 4470 11149 4466 11147
      4459 11153 4455 11147 4453 11151 4456 11159
      4456 11171 4451 11182 4456 11187 4453 11209
      4456 11219 4517 11105 4508 11104 4511 11110
      4505 11115 4501 11110 4449 11111
TIME...MOT...LOC 1430Z 215DEG 30KT 4440 11133

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

$$

Brusda


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
236 AM MDT Mon Mar 31 2025

WYZ001>020-022>030-011245-
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-
236 AM MDT Mon Mar 31 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THIS MORNING TO 6 PM
MDT TUESDAY...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Mountain snow and valley rain likely for most areas, with isolated
thunderstorms possible across southern portions of the area for the
I-80 corridor.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Lingering showers Tuesday with another round of shower activity for
Wednesday.

.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