Alert archive / Washington / Dense Fog Advisories

Dense Fog Advisories in Washington, 2021

20 dense fog advisories in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of dense fog advisories reaches back to 2005.

Dense Fog Advisories by county

Each county as a circle sized by its count in 2021. Tap one for its archive.

Dense Fog Advisories
20
Busiest month
November9 dense fog advisories
Busiest day
January 9, 20212 dense fog advisories

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jan 8, 11:15 PM PSTDense Fog AdvisoryPQR10 hr
Jan 9, 3:18 AM PSTDense Fog AdvisorySEW8 hr
Jan 16, 1:21 PM PSTDense Fog AdvisoryPDTColumbia, Walla Walla13 hr
Jan 19, 4:36 AM PSTDense Fog AdvisoryOTXLincoln, Spokane5 hr
Jan 22, 2:12 PM PSTDense Fog AdvisoryPDTColumbia, Walla Walla6 hr
Jan 29, 4:39 AM PSTDense Fog AdvisoryOTXLincoln, Spokane
Mar 3, 7:26 AM PSTDense Fog AdvisoryPQR3 hr
Aug 9, 4:50 AM PDTDense Fog AdvisoryOTXLincoln, Spokane6 hr
Nov 13, 2:02 AM PSTDense Fog AdvisoryPQR4 hr
Nov 13, 4:47 AM PSTDense Fog AdvisoryOTXLincoln, Pend Oreille, Spokane, Stevens4 hr
Nov 17, 4:42 AM PSTDense Fog AdvisorySEW5 hr
Nov 19, 9:27 PM PSTDense Fog AdvisoryOTXAdams, Douglas, Grant, Lincoln, Okanogan, Spokane and 1 more11 hr
Nov 20, 9:27 PM PSTDense Fog AdvisorySEW14 hr
Nov 21, 2:28 AM PSTDense Fog AdvisoryPQR9 hr
Nov 24, 5:19 AM PSTDense Fog AdvisoryPQR6 hr
Nov 27, 6:39 AM PSTDense Fog AdvisoryOTXAdams, Douglas, Grant, Lincoln, Okanogan, Spokane4 hr
Nov 29, 8:13 PM PSTDense Fog AdvisoryPQR6 hr
Dec 5, 7:27 AM PSTDense Fog AdvisorySEW5 hr
Dec 17, 3:54 AM PSTDense Fog AdvisoryPQR6 hr
Dec 22, 11:41 PM PSTDense Fog AdvisoryOTXAdams, Douglas, Grant7 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.