The weather for Western Washington over the next week looks wet and locally windy, especially for Tuesday through Sunday including Thanksgiving Day.
The National Weather Service says a pair of fronts will impact Western Washington over the Thanksgiving holiday weekend. The first front is expected to begin crossing Western Washington late Wednesday night having area-wide impacts for much of Thanksgiving Day. In the wake of this first front, colder air will enter the area which would allow snow levels to fall to around 2500 feet resulting in snowfall beginning to accumulate in the mountain passes. Up to 3 inches of snowfall is possible during the day Thanksgiving Day with up to an additional 6 inches possible through Friday in advance of the second front. Current forecasts suggest that total snowfall amounts for the entire holiday weekend will range from 10 to 15 inches are possible in the mountain passes. Those crossing the Cascades for the holiday are encouraged to allow extra time and prepare themselves and their vehicle properly for these conditions.
In addition, these fronts will bring breezy to windy conditions and more rain for the lowlands. Winds ahead of and along the first front are expected to be strongest along the coast, in the San Juans and portions of Whatcom and Skagit counties with speeds 20 to 35 mph and gusts to 50 mph. Remaining locations in Western Washington will still see wind speeds ranging 15 to 30 mph with possible gusts up to 40 mph. While rainfall amounts during this time frame are not expected to reach values uncommon for this time of year the combination of rain with the aforementioned winds in addition to the increase in travel associated with the holiday will create circumstances that merit additional caution. The second front passing through the area Friday will allow for rain to persist into the weekend although wind speeds are expected to ease some.