NOAA: Winter Storm Warning Issued For WA | Mountain Accumulations Of Up To 36″ Through Wednesday Morning

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

The National Weather Service has issued a Winter Storm Warning & Winter Weather Advisory for Washington. It is in effect until 4:00am Wednesday Morning. This storm will be a warmer one, which will impact snow accumulations greatly. The higher the elevation, the higher the snow accumulation.

Up To 3 FEET of Snow In The Mountains Through Wednesday Morning In Washington. 

NOAA Has Issued A Winter Storm Warning For:

  • Washington
7 day snowfall totals. Image: Tropical Tidbits
7 day precipitation totals. Image: NOAA

Accumulations are expected to be impacted greatly by elevation and the snow level is expected to hover around 3,000ft. 

Additional Storm Info:

Mountain snow. Image: NOAA Seattle, WA
Snow accumulations through early Wednesday. Image: NOAA Spokane, WA

Washington: Up To 3 FEET of Snow In The Mountains Through Wednesday Morning

* Mountain accumulations up to 3 feet, are expected.
- NOAA Spokane, WA
Winter Storm Warning in Washington. Image: NOAA Spokane, WA
6-10 day temperature outlook. Image: NOAA
6-10 day precipitation outlook. Image: NOAA

WA Winter Storm Warning:

URGENT - WINTER WEATHER MESSAGE
National Weather Service Spokane WA
111 PM PST Mon Dec 18 2017

...HEAVY SNOW TONIGHT AND TUESDAY...

.Heavy snow accumulations will occur over portions of north
central and northeast Washington as well as north Idaho tonight
into Tuesday. Temperatures in the lower to mid 30s around
Leavenworth, Brewster, Omak, Springdale, Deer Park, and Sandpoint
will make this a difficult forecast. Precipitation in these
communities may periodically be a mix of rain and snow limiting
lowland accumulations. For the mountains, this storm will produce
a couple feet of accumulation tonight through Wednesday morning.

East Slopes Northern Cascades-
Including the following locations Mazama, Twisp, Winthrop,
Stehekin, Conconully, Blewett Pass, and Loup Loup Pass

...WINTER STORM WARNING REMAINS IN EFFECT TO 4 AM PST WEDNESDAY...

* WHAT...Heavy snow expected. Travel will be very difficult to
 impossible, especially approaching the crest. Total snow
 accumulations of 3 to 6 inches around Leavenworth and Plain, 5
 to 10 inches in the Methow Valley, a foot or more around
 Stehekin. Mountain accumulations up to 3 feet, are expected.

* WHERE...Leavenworth, Mazama, Twisp, Winthrop, Stehekin,
 Conconully, Blewett Pass, and Loup Loup Pass.

* WHEN...4 PM today to 4 AM Wednesday.

* ADDITIONAL DETAILS...Elevation will likely influence snow
 accumulations considerably. Temperatures in the low to mid 30s
 may limit lowland accumulations for the lower Methow Valley.

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