The National Weather Service has issued a dense fog advisory that will remain in effect until Sunday morning.
Visibility is down to a quarter-mile or less in the Clark County communities of Vancouver, Battle Ground, Ridgefield, Washougal Yacolt and Amboy.
The evening fog materialized earlier than usual, according to the weather service.
“It’s not often we have to issue a dense fog advisory for inland areas this early in the evening … Be careful out there and make sure you have some kind of light on to be seen, even if you’re just walking outside,” NWS said in a tweet.
The advisory stays in place until 10 a.m. Sunday.
4:40 PM | Some places never got out of the fog today, but even areas which did see a little bit of sun are quickly fogging up again. Slow down out there and make yourself seen if you’re traveling by any means.
— NWS Portland (@NWSPortland) November 25, 2018