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Winter Storm Warning


URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1241 AM MDT Sun Jun 28 2026

MTZ327-290000-
/O.CON.KTFX.WS.W.0007.000000T0000Z-260629T1800Z/
Northwest Beaverhead County-
Including the cities of Wise River, Dewey, Chief Joseph Pass, Wisdom,
and Big Hole Pass
1241 AM MDT Sun Jun 28 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT MONDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 2 and
  6 inches at pass level, with snow amounts in excess of a foot in
  the higher terrain.

* WHERE...Northwest Beaverhead County.

* WHEN...Until noon MDT Monday.

* IMPACTS...Plan on cold and wet backcountry conditions with a
  heightened hypothermia risk for those not properly dressed. Wet
  snow may down trees and block access to forest roadways.

* ADDITIONAL DETAILS...Campers should be aware that it only takes a
  few inches of snow to damage tents and other recreational items.

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
616 PM MDT Sat Jun 27 2026

IDZ009-280830-
/O.CON.KMSO.WS.W.0004.000000T0000Z-260629T1500Z/
Western Lemhi County-
616 PM MDT Sat Jun 27 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MDT MONDAY ABOVE
6500 FEET...

* WHAT...Heavy wet snow expected above 6500 feet. Total snow
  accumulations of 4 to 8 inches, with up to 12 inches across the
  highest peaks.

* WHERE...Backcountry and higher elevation areas, including Williams
  Creek Summit.

* WHEN...Until 9 AM MDT Monday.

* IMPACTS...Plan for winter-like conditions in the backcountry and
  higher elevations. Cold temperatures, wind, and wet snow will
  elevate the risk of hypothermia. Heavy wet snow may down trees,
  blocking access to backcountry roadways.

* ADDITIONAL DETAILS...West winds 10 to 20 mph with gusts up to 30
  mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons should consider delaying travel across the backcountry and
higher elevations. If travel is absolutely necessary, consider taking
a winter storm kit along with you, including such items as tire
chains, booster cables, flashlight, shovel, blankets and extra
clothing. Also take water, a first aid kit, and anything else that
would help you survive in case you become stranded.


&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
616 PM MDT Sat Jun 27 2026

IDZ010-280830-
/O.CON.KMSO.WS.W.0004.000000T0000Z-260629T1500Z/
Eastern Lemhi County-
616 PM MDT Sat Jun 27 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MDT MONDAY ABOVE
6500 FEET...

* WHAT...Heavy wet snow possible above 6500 feet. Total snow
  accumulations of 4 to 8 inches, with up to 12 inches across the
  highest peaks.

* WHERE...Backcountry and higher elevation areas, Highway 28 Tendoy
  to Lone Pine, Lemhi Pass, and Bannock Pass.

* WHEN...Until 9 AM MDT Monday.

* IMPACTS...Plan for winter-like conditions in the backcountry and
  higher elevations. Cold temperatures , wind, and wet snow will
  elevate the risk of hypothermia. Heavy wet snow may down trees,
  blocking access to backcountry roadways.

* ADDITIONAL DETAILS...West winds 10 to 20 mph with gusts up to 30
  mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons should consider delaying travel across the backcountry and
higher elevations. If travel is absolutely necessary, consider taking
a winter storm kit along with you, including such items as tire
chains, booster cables, flashlight, shovel, blankets and extra
clothing. Also take water, a first aid kit, and anything else that
would help you survive in case you become stranded.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
616 PM MDT Sat Jun 27 2026

MTZ006-280830-
/O.CON.KMSO.WS.W.0004.000000T0000Z-260629T1500Z/
Bitterroot/Sapphire Mountains-
616 PM MDT Sat Jun 27 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MDT MONDAY ABOVE
6500 FEET...

* WHAT...Heavy wet snow expected above 6500 feet. Total snow
  accumulations of 4 to 8 inches, with up to 12 inches across the
  highest peaks.

* WHERE...Skalkaho Pass, Nez Perce Pass, backcountry and higher
  elevation areas.

* WHEN...Until 9 AM MDT Monday.

* IMPACTS...Plan for winter-like conditions in the backcountry and
  higher elevations. Cold temperatures, wind, and wet snow will
  elevate the risk of hypothermia. Heavy wet snow may down trees,
  blocking access to backcountry roadways.

* ADDITIONAL DETAILS...West winds 10 to 20 mph with gusts up to 30
  mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons should consider delaying travel across the backcountry and
higher elevations. If travel is absolutely necessary, consider taking
a winter storm kit along with you, including such items as tire
chains, booster cables, flashlight, shovel, blankets and extra
clothing. Also take water, a first aid kit, and anything else that
would help you survive in case you become stranded.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
616 PM MDT Sat Jun 27 2026

MTZ007-280830-
/O.CON.KMSO.WS.W.0004.000000T0000Z-260629T1500Z/
Butte/Blackfoot Region-
616 PM MDT Sat Jun 27 2026

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM MDT MONDAY ABOVE
6500 FEET...

* WHAT...Heavy wet snow expected above 6500 feet. Total snow
  accumulations of 4 to 8 inches, with 8 to 16 inches across the
  Anaconda Pintler Mountains. Snow levels may briefly lower and could
  produce minor slushy accumulation at Homestake and Macdonald Pass.

* WHERE...Georgetown Lake, backcountry and higher elevation areas.

* WHEN...Until 9 AM MDT Monday.

* IMPACTS...Plan for winter-like conditions in the backcountry and
  higher elevations. Cold temperatures, wind, and wet snow will
  elevate the risk of hypothermia. Heavy wet snow may down trees,
  blocking access to backcountry roadways.

* ADDITIONAL DETAILS...West winds 10 to 20 mph with gusts up to 30
  mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons should consider delaying travel across the backcountry and
higher elevations. If travel is absolutely necessary, consider taking
a winter storm kit along with you, including such items as tire
chains, booster cables, flashlight, shovel, blankets and extra
clothing. Also take water, a first aid kit, and anything else that
would help you survive in case you become stranded.

&&

$$

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
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