Active AlertsEdgewood, WA

What: Visibility one quarter mile or less in dense fog.
Where: Middle Chehalis River Valley, City of Seattle, Eastside, Lowlands of Lewis and Southern Thurston Counties, Lowlands of Pierce and Southern King Counties, Olympia and Southern Puget Sound, and Shoreline / Lynnwood / South Everett Area.
When: Until noon PST today.
Impacts: Low visibility could make driving conditions hazardous. Patchy freezing fog could produce black ice on roadways.
Additional Details: Visibilities will slowly improve late morning into the afternoon. Fog will likely linger in some areas through the majority of today.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.