Wednesday, June 07, 2017

Special Weather Statement issued June 06 at 8:59PM PDT by NWS

Published: 2017-06-06 08:59:00
Updated: 2017-06-06 08:59:00

MUCH COOLER IN THE CASCADES AND OLYMPICS STARTING THURSDAY INTO THIS WEEKEND

An unseasonably strong cool upper level low pressure system in the gulf of Alaska is expected to work its way onshore late this week and move inland over the weekend. The associated air mass is quite cool and unstable which will result in a showery weather pattern. Snow levels are expected to plummet close to 5000 feet Thursday night and continue into at least Saturday.

On Tuesday paradise on mount rainier hit 70 degrees. On Thursday night and Friday snow is expected with at least several inches of accumulation. Those planning any travel into the cascades and Olympics should anticipate this dramatic change to much cooler weather
particularly hikers and climbers.

Even motorists crossing the higher passes such as Washington,
Chinook, Cayuse and White Passes should be prepared for more winter like driving conditions. Monitor the mountain forecasts closely through the rest of this week if planning to travel into higher terrain locations.