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West Coast Outdoor Weather 11-12-2015  A strong trough of low pressure and cold front will be in the Washington Cascades this Saturday and Sunday. This will initially start as heavy rain early on Saturday however by Saturday night and Sunday we can expect snow.  Weekend snow totals for many areas in the West Cascades will be in the 10 to 12 inches at the 3000/4000  foot level with much higher totals above 5000 feet.
How about the Sierra?  It should be dry for most of Saturday. Then on Sunday the trough moves in  to bring some mountain snow.  Some models suggest 6 to 10 inches of snow at 5000 over this period for Lake Tahoe and north .
How about by the middle of the week (11-18-2015).  Models keep mountain snow in the forecast for the West Cascades. However, in the Sierra a ridge of high pressure (see below) will be in place for dry conditions.
500 mb map (18,000') shows a ridge over the Sierra. Photo Credit: NOAA
500 mb map (18,000′) shows a ridge over the Sierra. Photo Credit: NOAA

About the author: Michael Fagin has been providing mountain forecasts for the Pacific Northwest since the mid 1980’s and is currently providing weather forecasts for many of the Seattle Mountaineers Climb and Scramble leaders.  Michael also provides weather forecasts for some government agencies on key weather events in the Puget Sound Region: wind storms, major rain events, and snow events.  Since 2003 Michael has been providing weather forecasts for Mt. Everest for many of the major expedition and for mountaineers climbing the major peaks around the world. Forecast are also provided  for outdoor events like weddings. Finally Michael and his associates are used as expert witnesses in legal proceedings that concern meteorological events..   Michael Fagin is lead forecaster for West Coast Weather LLC and its affiliate firms: Everest Weather, Alaska Mountain Weather and Washington Online Weather.

Please see our web sites for additional information:  West Coast Weather and Everest Weather. We provide custom forecast for all outdoor events from weddings to climbing mountains.  For information you can  call (toll free)  877-969-4786 or email michaelfagin than put “@” comcast.net for details.

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