A wind advisory was added early Wednesday to the flood watch issued for Western Washington, including Whatcom County, in advance of a strong storm system that could dump as much as 3 to 6 inches of rain in the North Cascades.
Winds of 20 to 35 mph with gusts to 55 are expected during the advisory, which lasts until 10 a.m. Wednesday. Winds will peak before noon, then ease gradually, forecasters said.
For flooding, National Weather Service meteorologists said the greatest concern is for the Nooksack River and its tributaries, which could see significant runoff. The flood watch is in effect 4 p.m. Wednesday through 10 p.m. Thursday.
More rain is expected Wednesday, up to 0.75 inches more, with temperatures in the mid-50s. South-southeast winds will be steady at 20 to 25 mph – rain was forecast to start Tuesday night, with as much as 0.75 inches possible in the lowlands, forecasters said.
Showers are likely Thursday and Friday, with highs in the upper 40s and lows in the 40s and mid-30s.