West Slopes Northern Cascades and Passes
... A change to cold and wet weather in the mountains starting
Tuesday and continuing through the week...
Cold air will move into western Washington Monday night and
Tuesday. The cold air will remain over the area through the end of
the week. The snow level in the mountains will drop to 4500 feet
Tuesday afternoon then down to 3500 feet Tuesday night and
Snow will accumulate at times at high elevations Tuesday afternoon
through Wednesday or Thursday. Higher Highway passes that have
opened for the Summer... including Rainy Pass and Chinook Pass...
will likely get a few to several inches of snow. Stevens and white
passes could also get some snow. Little or no snowfall is forecast
for Snoqualmie Pass.
Hikers and climbers may want to postpone any trips into the
mountains this week... especially at higher elevations. If you
go... be prepared for accumulating snow above 4000 feet starting
later Tuesday and continuing through at least Wednesday night.
Drivers crossing the Cascades should consider using one of the
lower passes such as Snoqualmie Pass. Allow extra time for mountain
journeys this week.
National Weather Service Seattle