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Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
144 PM MDT Thu Sep 21 2023

MTZ002-043-221800-
/O.EXT.KMSO.WW.Y.0045.000000T0000Z-230922T1800Z/
West Glacier Region-Potomac/Seeley Lake Region-
144 PM MDT Thu Sep 21 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MDT FRIDAY ABOVE
6500 FEET...

* WHAT...Wet snow Above 6500 Feet. Additional snow accumulations of
  one to two inches. Winds gusting as high as 45 mph.

* WHERE...Glacier National Park, Whitefish Range, Swan Range, and
  Mission Mountains.

* WHEN...Until noon MDT Friday.

* IMPACTS...Backcountry travel could be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor recreationalists should be prepared for winter conditions.
Snowfall could impact roads and cold temperatures may result in
hypothermia.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
144 PM MDT Thu Sep 21 2023

MTZ006-007-221800-
/O.EXT.KMSO.WW.Y.0045.000000T0000Z-230922T1800Z/
Bitterroot/Sapphire Mountains-Butte/Blackfoot Region-
144 PM MDT Thu Sep 21 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON MDT FRIDAY ABOVE
6500 FEET...

* WHAT...Wet snow Above 6500 feet. Additional snow accumulations of
  one to two inches, except up to 5 inches in the Flint Creek Range.

* WHERE...Bitterroot Mountains including Lost Trail Pass, Anaconda
  Range, Flint Creek Range, and Boulder Mountains.

* WHEN...Until noon MDT Friday.

* IMPACTS...Backcountry travel could be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor recreationalists should be prepared for winter conditions.
Snowfall could impact roads and cold temperatures may result in
hypothermia.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
144 PM MDT Thu Sep 21 2023

IDZ006-221800-
/O.EXT.KMSO.WW.Y.0045.000000T0000Z-230922T1800Z/
Southern Clearwater Mountains-
1244 PM PDT Thu Sep 21 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM PDT FRIDAY
ABOVE 6500 FEET...

* WHAT...Wet snow Above 6500 Feet. Additional snow accumulations up
  to one inch.

* WHERE...Southern Clearwater Mountains.

* WHEN...Until 11 AM PDT Friday.

* IMPACTS...Backcountry travel could be affected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor recreationalists should be prepared for winter conditions.
Snowfall could impact roads and cold temperatures may result in
hypothermia.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
144 PM MDT Thu Sep 21 2023

IDZ010-221800-
/O.EXB.KMSO.WW.Y.0045.000000T0000Z-230922T1800Z/
Eastern Lemhi County-
144 PM MDT Thu Sep 21 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT FRIDAY ABOVE
6500 FEET...

* WHAT...Wet snow above 6500 feet. Additional snow accumulations up
  to two inches.

* WHERE...Lemhi County mountains.

* WHEN...Until noon MDT Friday.

* IMPACTS...Backcountry travel could be affected.

* ADDITIONAL DETAILS...Steadier snow will develop by daybreak Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor recreationalists should be prepared for winter conditions.
Snowfall could impact roads and cold temperatures may result in
hypothermia.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
923 AM MDT Thu Sep 21 2023

MTZ067-221530-
/O.NEW.KBYZ.WW.Y.0029.230922T0000Z-230923T1800Z/
Absaroka/Beartooth Mountains-
Including the locations of Cooke City
923 AM MDT Thu Sep 21 2023

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

* WHAT...Periods of wet snow expected above 9000 feet. Total snow
  accumulations from around 2 inches at 9000 feet to 6 to 10 inches
  above 10000 feet. Winds gusting up to 30 mph.

* WHERE...Absaroka/Beartooth Mountains.

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

* IMPACTS...Travel over Beartooth Pass will be impacted by wet
  snowfall. Hunters in the high country should be prepared for
  wintry conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Beartooth Highway will receive accumulating snow and experience
windy conditions. For the latest road conditions, call 5 1 1.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Lester

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
218 AM MDT Thu Sep 21 2023

MTZ301-307-220000-
/O.CON.KTFX.WW.Y.0046.000000T0000Z-230922T0000Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: East Glacier Park, Kiowa,
Babb, Saint Mary, Marias Pass, Logan Pass, and Rogers Pass
218 AM MDT Thu Sep 21 2023

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

* WHAT...Wet snow above 6000 feet. Additional snow accumulations
  mostly up to 3 inches today, but peaks above 7000 feet could
  receive another 6 inches or more, especially on the Southern Rocky
  Mountain Front. Winds gusting as high as 40 mph.

* WHERE...East Glacier Park Region and Southern Rocky Mountain Front.

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

* IMPACTS...The wind and wet snow will make for cold and raw
  backcountry travel and activities.

* ADDITIONAL DETAILS...More intense snow bands may drive snow levels
  down below 6000 feet at times, especially this morning, but
  accumulating snow is unlikely there. The accumulating snow should
  remain above mountain pass level.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor recreationists should be prepared for early winter
conditions. The cold and wet weather may result in hypothermia for
those not properly dressed. Snowfall may impact some roads, mainly
making them wet and slick.

&&

$$

SC

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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