NOAA: Winter Storm Warning for Montana Today | Up to 15″ of Snow Forecast

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Lone Peak Tram at Big Sky, MT in a big snowstorm on Sept. 15th, 2015.
Lone Peak Tram at Big Sky, MT in a big snowstorm on Sept. 15th, 2015.  photo:  big sky

NOAA has issued both Winter Storm Warnings and Winter Weather Advisories for nearly every mountain in Montana for today, tomorrow, and Wednesday.  The leftovers of the atmospheric river that clobbered Washington state over the weekend will be clobbering Montana the next 72 hours.

The mountains of Montana are forecast to see 8-15″ of snowfall from this system.

* SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW IN THE VALLEYS AND
  IN THE MOUNTAINS 8 TO 15 INCHES.

Snow levels will start out at 6,000-feet today before dropping to valley floors tomorrow morning.

* SNOW LEVEL...6000 FEET THIS EVENING LOWERING TO VALLEY FLOORS
  TUESDAY MORNING.
Montana displaying its Winter Storm Warnings (PINK) and Winter Weather Advisories (PURPLE)
Montana displaying its Winter Storm Warnings (PINK) and Winter Weather Advisories (PURPLE)

NOAA’s WINTER STORM WARNING and WINTER WEATHER ADVISORY for MONTANA:

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
330 AM MST MON NOV 2 2015

...AUTUMN STORM SYSTEM TO BRING HEAVY MOUNTAIN SNOW TONIGHT
THROUGH TUESDAY WITH RAIN CHANGING TO SNOW AT LOWER ELEVATIONS
TUESDAY...

.A STORM SYSTEM DEVELOPING OVER THE GREAT BASIN TODAY WILL TRACK
NORTHEAST INTO CENTRAL AND EASTERN MONTANA TUESDAY. RAIN AND
MOUNTAIN SNOW WILL DEVELOP LATE THIS AFTERNOON AND EVENING ALONG
THE IDAHO BORDER AND SPREAD NORTH TONIGHT...REACHING CENTRAL
MONTANA BY TUESDAY MORNING. COOLING TEMPERATURES WILL LOWER SNOW
LEVELS TO THE VALLEYS AND PLAINS BY TUESDAY MORNING WITH WET SNOW
LIKELY AT ALL ELEVATIONS TUESDAY AND TUESDAY NIGHT BEFORE ENDING
BY WEDNESDAY MORNING. HEAVIEST SNOW WILL BE FOCUSED OVER THE
MOUNTAINS...IMPACTING TRAVEL OVER SOME MOUNTAIN PASSES WITH SOME
LOWER ELEVATION ROADWAYS ALSO BECOMING SLICK AND SNOW COVERED
TUESDAY NIGHT.

INCLUDING THE FOLLOWING LOCATIONS...BIG HOLE PASS...
CHIEF JOSEPH PASS...DILLON...MONIDA PASS...ENNIS...NORRIS HILL...
RAYNOLDS PASS...TWIN BRIDGES...BATTLE RIDGE PASS...BOZEMAN...
BOZEMAN PASS...TARGHEE PASS...WEST YELLOWSTONE

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
5 AM MST WEDNESDAY FOR ELEVATIONS ABOVE 6000 FEET...

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TUESDAY TO 5 AM
MST WEDNESDAY FOR ELEVATIONS BELOW 6000 FEET...
Very high probability for snow in Montana the next few days (RED)...
Very high probability for snow in Montana the next few days (RED)…
THE NATIONAL WEATHER SERVICE IN GREAT FALLS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 AM MST WEDNESDAY FOR ELEVATIONS ABOVE 6000 FEET. A
WINTER WEATHER ADVISORY HAS ALSO BEEN ISSUED. THIS WINTER WEATHER
ADVISORY FOR SNOW IS IN EFFECT FROM 5 AM TUESDAY TO 5 AM MST
WEDNESDAY FOR ELEVATIONS BELOW 6000 FEET.

* LOCATIONS...BIG HOLE PASS...CHIEF JOSEPH PASS...DILLON...
  MONIDA PASS...ENNIS...NORRIS HILL...REYNOLDS PASS...TWIN
  BRIDGES... BATTLE RIDGE PASS...BOZEMAN...BOZEMAN PASS...
  TARGHEE PASS...WEST YELLOWSTONE.

* SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW IN THE VALLEYS AND
  IN THE MOUNTAINS 8 TO 15 INCHES.

* TIMING...RAIN AND MOUNTAIN SNOW WILL DEVELOP THIS EVENING WITH
  SNOW AT ALL ELEVATIONS LATE TONIGHT THROUGH TUESDAY NIGHT.

* IMPACTS...HEAVY SNOW WILL CREATE DIFFICULT DRIVING CONDITIONS
  OVER MOUNTAIN PASSES WHERE ROADWAYS WILL BECOME SNOW COVERED AND
  ICY BY TUESDAY MORNING. AT LOWER ELEVATIONS...RAIN CHANGING TO
  SNOW WILL CREATE SLUSHY ROADWAYS TUESDAY WITH COLDER
  TEMPERATURES TUESDAY NIGHT ALLOWING FOR SOME ACCUMULATION AT ALL
  ELEVATIONS.

* WINDS...NORTH 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* HAZARD ELEVATION...HEAVY SNOW ACCUMULATIONS AND HAZARDOUS TRAVEL
  CONDITIONS WILL PRIMARILY BE FOCUSED AT ELEVATIONS ABOVE 6000
  FEET. THIS INCLUDES BIG SKY...WEST YELLOWSTONE...REYNOLDS AND
  TARGHEE AND MONIDA PASSES.

* SNOW LEVEL...6000 FEET THIS EVENING LOWERING TO VALLEY FLOORS
  TUESDAY MORNING.
Snow forecast for Montana today and tomorrow. image: noaa
Snow forecast for Montana today and tomorrow. image: noaa
 

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