Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
341 AM MDT Sat Jun 21 2025

MTZ307-317-320-322-327-329-330-220000-
/O.CON.KTFX.WW.Y.0041.250622T0000Z-250622T1800Z/
Southern Rocky Mountain Front-Little Belt and Highwood Mountains-
Big Belt, Bridger and Castle Mountains-Elkhorn and Boulder
Mountains-Northwest Beaverhead County-Ruby Mountains and Southern
Beaverhead Mountains-Gallatin and Madison County Mountains and
Centennial Mountains-
Including the following locations: Maudlow, Monida Pass, Monarch,
Chief Joseph Pass, Boulder, Rogers Pass, Targhee Pass, Wise
River, Neihart, Deep Creek Pass, Raynolds Pass, Homestake Pass,
Wickes, Trident, Bozeman Pass, Big Sky, Wisdom, Elk Park Pass,
Clancy, Montana City, Big Hole Pass, Battle Ridge Pass, Kings
Hill Pass, Corbin, Dewey, and West Yellowstone
341 AM MDT Sat Jun 21 2025

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

* WHAT...Snow expected. Total snow accumulations of 2 to 6 inches

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

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

* IMPACTS...Plan on slippery road conditions, especially on
  secondary roads in the mountains. Those in the backcountry should
  be prepared for wet and raw condtions. The heavy wet snow could
  bring down some trees and power lines.

* ADDITIONAL DETAILS...Snow levels could be as low as 5000 feet at
  times.

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 Pocatello ID
247 AM MDT Sat Jun 21 2025

IDZ069>074-220015-
/O.CON.KPIH.WW.Y.0017.000000T0000Z-250623T0000Z/
Lost River Range-Challis/Pahsimeroi Valleys-Frank Church
Wilderness-Sawtooth/Stanley Basin-Sun Valley Region-Big Lost
Highlands/Copper Basin-
Including the cities of Ketchum, Clayton, Copper Basin, Stanley,
Galena, Borah Peak, Challis, and Sun Valley
247 AM MDT Sat Jun 21 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT SUNDAY
ABOVE 7500 FEET ELEVATION...

* WHAT...Total snow accumulations of 2 to 10 inches above 7500 feet
  and a trace to 2 inches below 7500 feet.

* WHERE...Big Lost Highlands/Copper Basin, Challis/Pahsimeroi
  Valleys, Frank Church Wilderness, Lost River Range,
  Sawtooth/Stanley Basin, and Sun Valley Region.

* WHEN...Until 6 PM MDT Sunday.

* IMPACTS...Travel could be difficult, especially in the
  backcountry. Those recreating in the higher elevations should be
  prepared for winter weather 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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
247 AM MDT Sat Jun 21 2025

IDZ066-067-220015-
/O.CON.KPIH.WW.Y.0017.250622T0600Z-250623T0000Z/
Centennial Mountains - Island Park-Beaverhead - Lemhi Highlands-
Including the cities of Kilgore, Edie School, Island Park,
Spencer, Dubois, and Small
247 AM MDT Sat Jun 21 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 PM MDT SUNDAY ABOVE 7500 FEET ELEVATION...

* WHAT...Total snow accumulations of 2 to 6 inches above 7500 feet
  and a trace to 2 inches below 7500 feet.

* WHERE...Beaverhead - Lemhi Highlands and Centennial Mountains -
  Island Park.

* WHEN...From midnight tonight to 6 PM MDT Sunday.

* IMPACTS...Travel could be difficult, especially in the
  backcountry. Those recreating in the higher elevations should be
  prepared for winter weather 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.

MacKay

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
215 AM MDT Sat Jun 21 2025

MTZ067-220815-
/O.CON.KBYZ.WW.Y.0032.250622T0000Z-250623T0000Z/
Absaroka/Beartooth Mountains-
215 AM MDT Sat Jun 21 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SUNDAY FOR THE BEARTOOTH HIGHWAY...

* WHAT...Wet snow expected for the Beartooth Highway. Total snow
  accumulations 3 to 6 inches. Winds gusting as high as 40 mph.

* WHERE...Absaroka/Beartooth Mountains.

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

* IMPACTS...Roadways will likely become slick, slushy and hazardous.
  Visibility may be limited in falling wet snow.

* ADDITIONAL DETAILS...Anyone planning activities in the Beartooth
  Mountains should be prepared for winter like weather conditions,
  especially above 8000 ft.

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

Stetzer

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1217 PM MDT Fri Jun 20 2025

IDZ006-009-010-MTZ006-007-043-221800-
/O.NEW.KMSO.WW.Y.0035.250621T0800Z-250622T1800Z/
Southern Clearwater Mountains-Western Lemhi County-Eastern Lemhi
County-Bitterroot/Sapphire Mountains-Butte/Blackfoot Region-
Potomac/Seeley Lake Region-
1217 PM MDT Fri Jun 20 2025 /1117 AM PDT Fri Jun 20 2025/

...WINTER WEATHER ADVISORY IN EFFECT FROM 2 AM MDT /1 AM PDT/
SATURDAY TO NOON MDT /11 AM PDT/ SUNDAY ABOVE 6,000 FEET...

* WHAT...Snow expected Above 6,000 feet. Likelihood of minor impacts
  from snow is greater than 60 percent. Total snow accumulations up
  to 4 inches. Wind gusts around 30 mph in exposed areas.

* WHERE...In IDAHO, Eastern Lemhi County, Southern Clearwater
  Mountains, and Western Lemhi County. In MONTANA,
  Bitterroot/Sapphire Mountains, Butte/Blackfoot Region, and
  Potomac/Seeley Lake Region.

* WHEN...From 2 AM MDT /1 AM PDT/ Saturday to noon MDT /11 AM PDT/
  Sunday.

* IMPACTS...For MODERATE impacts from snow, expect disruptions to
  normal activities. Hazardous traveling conditions. Use extra
  caution while driving. Closures and disruptions to infrastructure
  may occur. For MINOR impacts from snow, expect a few
  inconveniences to normal activities. Use caution while driving.
  Increased risk of hypothermia.

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.

&&

$$