SEATTLE, Wash. — The National Weather Service (NWS) in Seattle has issued a weather alert for heavy rainfall across Western Washington, in effect until Thursday at 4 p.m. The advisory warns of continued rain, potential flooding, and an increased risk of landslides and debris flows following days of persistent wet weather.
Heavy Rain to Continue Through Thursday
The alert, issued at 3:33 p.m. Wednesday, covers an extensive area including the Cascades, foothills, lowlands, and coastal regions across multiple counties such as Whatcom, Skagit, Snohomish, King, Pierce, Lewis, Thurston, Grays Harbor, and Island counties, among others.
According to the NWS, rainfall amounts of 1 to 2 inches are expected through Friday, adding to the already saturated soil across Western Washington. This has heightened concerns for landslides and debris flows, particularly in recent burn areas and steep hillsides.
“Significant rainfall over the past week has increased soil moisture to high levels across western Washington,” the NWS said. “This new rainfall will put extra pressure on unstable slopes, increasing the threat of landslides, debris flows, and road cuts.”
Numerous landslides have already been reported in Whatcom, Skagit, and King counties, and more are possible as rain continues. The NWS added that the risk will persist for several days after rainfall ends.
Driving Safety Tips During Heavy Rain
With slick roads and reduced visibility expected, motorists are urged to drive cautiously and follow these NWS safety recommendations:
- Turn on headlights even during the day to improve visibility.
- Avoid puddles and flooded areas — hydroplaning and loss of control can occur even in shallow water.
- Stay in middle lanes where possible, as water tends to pool along road edges.
- Keep a safe distance from large vehicles that may spray water and block visibility.
- Never drive through flooded roadways — strong currents can sweep vehicles away, and deep water can cause mechanical failure.
Understanding Hydroplaning
Hydroplaning occurs when water builds up between a vehicle’s tires and the road, causing a complete loss of traction. The NWS lists the main causes as:
- High speeds during wet conditions
- Deep water on road surfaces
- Worn tire treads that fail to disperse water
If hydroplaning occurs:
- Ease off the accelerator—don’t brake suddenly.
- Steer gently into the skid until control is regained.
- Wait for tires to reconnect with the road, then straighten the wheel gradually.
Advisory Duration
The weather alert remains in effect until Thursday at 4 p.m., with conditions expected to slowly improve by late evening as rainfall tapers off.
Residents and travelers are advised to remain vigilant for flooding, falling debris, or road closures, and to monitor local updates for emergency information.
Stay with HonkNews.com for continuing coverage of Western Washington’s weather alerts and safety updates.