Alert archive / Washington / Dense Fog Advisories in 2021

Dense Fog Advisory 2, NWS Seattle, WA

November 17, 2021

NWS Seattle, WA issued this dense fog advisory at Nov 17, 2021, 4:42 AM PST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Nov 17, 2021, 4:42 AM PST (12:42 UTC)
Expired
Nov 17, 2021, 10:00 AM PST
In force
5 hr
Issued by
NWS Seattle, WA

What forecasters said that day

The local office's own words before this dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Seattle, WA wrote its last area forecast discussion before this dense fog advisory went out at Nov 17, 4:10 AM PST, 32 minutes earlier.

Area forecast discussion, Nov 17, 4:10 AM PST, 32 minutes before
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The office that day

Everything else NWS Seattle, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 17, 3:16 AM PSTSmall Craft AdvisorySEW23 hr

Nearby

Dense Fog Advisories in Washington, 2021Every dense fog advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.