Heavy Snowfall & Arctic Air On Tap For Montana This Weekend | Up To 20″ of Snow Saturday – Sunday Night

Chris Wallner | | WeatherWeather
PINK= Winter Storm Warning. BLUE= Winter Storm Watch. PURPLE= Winter Weather Advisory. Image: NOAA

The National Weather Service has issued Winter Storm Warnings, Winter Storm Watches, and Winter Weather Advisories for much of Montana. They are in effect from early Saturday Morning through late Sunday Night. Extremely cold temperatures are expected to accompany heavy snowfall throughout the weekend.

Up To 20″ of Snow Saturday – Sunday Night.

7 day precipitation totals. Image: Tropical Tidbits
7 day precipitation totals. Image: NOAA

Arctic air is expected to coincide with this storm, so snow is forecasted to fall at all elevations.

Additional Storm Info:

Storm totals in Western Montana. Image: NOAA Missoula, MT
Storm totals. Image: NOAA Great Falls, MT

Montana: Up To 20″ of Snow Saturday Morning – Sunday Night

* Total snow accumulations of 4 to 7 inches
  are possible Saturday morning through late
  Sunday night, with localized amounts up to 
  20 inches at higher elevations.
- NOAA Great Falls, MT
Low temperatures Monday morning are COLD. Image: NOAA Missoula, MT
6-10 day temperature outlook. Image: NOAA
6-10 day precipitation outlook. Image: NOAA

MT Winter Storm Watch:

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
531 AM MST Fri Feb 16 2018

Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Ennis, Norris Hill,
Raynolds Pass, Twin Bridges, Virginia City, Montana City,
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall,
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass,
Bozeman Pass, and Targhee Pass

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 5 AM MST SATURDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
LATE SUNDAY NIGHT...

* WHAT...Snow expected. Heavy snow possible Saturday morning
  through late Sunday night. Total snow accumulations today and
  tonight of up to 2 inches are expected, with localized amounts
  up to 6 inches at higher elevations. Total snow accumulations
  of 4 to 7 inches are possible Saturday morning through late
  Sunday night, with localized amounts up to 20 inches at higher
  elevations.

* WHERE...Madison, Jefferson, Broadwater and Gallatin.

* WHEN...For the Winter Weather Advisory, from 5 PM this
  afternoon to 5 AM MST Saturday. For the Winter Storm Watch,
  from late tonight through late Sunday night.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Plan on
  difficult travel conditions. Significant reductions in
  visibility are possible. The cold wind chills Sunday into
  Monday as low as 25 below zero could cause frostbite on
  exposed skin in as little as 30 minutes.

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