SEATTLE, Wash. — The National Weather Service in Seattle has issued an updated winter weather advisory for portions of the Western Washington Cascades, with snowfall expected to intensify through Sunday night and continue into early Monday morning.
NWS Advisory Details
The advisory, issued at 5:26 p.m. on Sunday, remains in effect until 4 a.m. Monday and includes:
- Cascades of Snohomish and Northern King counties
- Cascades of Southern King County
- Cascades of Pierce and Lewis counties
Forecasters say residents in these areas should expect total snow accumulations between 6 and 12 inches.
According to the NWS, snow levels are currently around 2,500 to 3,000 feet, but will drop to between 1,500 and 2,000 feet by early Monday morning, bringing snow to lower elevations.
“Plan on slippery road conditions,” the NWS warned. “Slow down and use caution while traveling. Prepare for possible power outages.”
Travel and Safety Concerns
The combination of heavy snow and falling temperatures is expected to make driving treacherous overnight, particularly over mountain passes and unplowed roads. Power lines and tree branches could also snap under the weight of accumulating snow.
Authorities advise motorists to avoid unnecessary travel, but if driving is essential, they urge residents to carry emergency supplies and be prepared for sudden visibility drops.
Winter Driving Tips from the National Weather Service
To help drivers stay safe during winter storms, the NWS recommends:
- Slow down and drive cautiously — icy patches can form even when roads appear clear.
- Keep your gas tank full and pack essentials such as a flashlight, blanket, jumper cables, and a windshield scraper.
- Avoid walking for help if stranded — instead, signal for assistance using your car’s flashers or a visible cloth on your antenna.
- Give snow plows space and only pass when the road ahead is clearly visible.
- Check current road conditions before departing by visiting the Washington State Department of Transportation (WSDOT) website or the TripCheck system.
Outlook
The NWS says conditions should gradually improve by Monday morning as snowfall tapers off and temperatures begin to stabilize. However, forecasters caution that lingering icy spots may remain through the morning commute.
Residents are encouraged to stay updated through local weather alerts and follow safety advisories throughout the night. Stay tuned to HonkNews.com for the latest updates on this winter weather advisory in Western Washington.