Dense Fog Advisory
DENSE FOG ADVISORY NOW IN EFFECT UNTIL 1 PM PST THIS AFTERNOON
Washington dense fog advisories
1 dense fog advisory is in effect in Washington right now.
Fog will reduce visibility to a quarter mile or less, making driving hazardous.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Map data: NWS, OpenFreeMap, OpenStreetMap
Active dense fog advisories in Washington
Dense Fog Advisories in Washington by year
Washington averaged 38.1 dense fog advisories per year from 2016 to 2025, and has had 59 so far in 2026. The most recent was issued on November 14, 2026.
Counties with the most dense fog advisories
Recent dense fog advisories in Washington
| Issued | Alert | Area |
|---|---|---|
| Nov 14, 9:26 AM EST | Dense Fog Advisory | Kittitas Valley |
What a dense fog advisory means
Dense fog can cause chain-reaction crashes on highways because drivers suddenly lose sight of the road ahead.
More about dense fog advisories and the national map →
What to do
- Slow down, use low-beam headlights and leave plenty of distance.
- Never use high beams in fog.
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