... Dense fog advisory in effect for much of the western Washington
lowlands until 11 am PDT this morning...
The National Weather Service in Seattle has issued a dense fog
advisory, which is in effect until 11 am PDT this morning.
* Visibility... a quarter of a mile or less.
* Timing... the visibility will begin improving after 10 am PDT.
* Impacts... dense fog will result in poor driving conditions this
A dense fog advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving, slow down, use
your headlights, and leave plenty of distance ahead of you.
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Dense Fog Advisory
Issued: 7:48 AM PDT Oct. 21, 2018 – National Weather Service