Alert archive / Oregon / Dense Fog Advisories

Dense Fog Advisories in Oregon, 2023

81 dense fog advisories in 2023. 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 2023. Tap one for its archive.

Dense Fog Advisories: 81
Busiest month: December34 dense fog advisories
Busiest day: December 16, 20234 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.

Issued	Product	Office	Counties	Lasted
Dec 31, 5:51 PM PST	Dense Fog Advisory	BOI	Malheur	11 hr
Jan 1, 12:38 AM PST	Dense Fog Advisory	PQR		10 hr
Jan 1, 11:14 PM PST	Dense Fog Advisory	PQR		8 hr
Jan 6, 6:43 AM PST	Dense Fog Advisory	PDT	Gilliam, Sherman, Wasco	5 hr
Jan 6, 7:23 AM PST	Dense Fog Advisory	BOI	Baker, Harney, Malheur	3 hr
Jan 6, 10:20 PM PST	Dense Fog Advisory	BOI	Malheur	12 hr
Jan 10, 1:48 AM PST	Dense Fog Advisory	BOI	Malheur	10 hr
Jan 10, 4:15 AM PST	Dense Fog Advisory	PDT	Gilliam, Morrow, Sherman, Umatilla, Wasco	3 hr
Jan 10, 6:59 AM PST	Dense Fog Advisory	PDT	Gilliam, Morrow, Sherman, Umatilla, Wasco	21 hr
Jan 11, 1:32 AM PST	Dense Fog Advisory	BOI	Harney, Malheur	9 hr
Jan 13, 6:12 AM PST	Dense Fog Advisory	PDT	Gilliam, Morrow, Sherman, Umatilla, Wasco	30 hr
Jan 15, 5:00 AM PST	Dense Fog Advisory	PDT	Morrow, Umatilla	7 hr
Jan 20, 12:06 AM PST	Dense Fog Advisory	PQR		9 hr
Jan 23, 5:32 AM PST	Dense Fog Advisory	PQR		4 hr
Jan 23, 10:26 PM PST	Dense Fog Advisory	PQR		13 hr
Jan 24, 6:45 PM PST	Dense Fog Advisory	PQR		14 hr
Jan 25, 9:02 AM PST	Dense Fog Advisory	PQR		118 min
Feb 12, 2:14 AM PST	Dense Fog Advisory	PQR		9 hr
Feb 15, 5:51 AM PST	Dense Fog Advisory	PQR		4 hr
Mar 14, 3:06 AM PDT	Dense Fog Advisory	PQR		7 hr
Mar 29, 8:27 AM PDT	Dense Fog Advisory	PQR		2 hr
May 13, 5:56 AM PDT	Dense Fog Advisory	PQR		3 hr
Aug 4, 4:19 AM PDT	Dense Fog Advisory	PQR		4 hr
Aug 6, 1:15 AM PDT	Dense Fog Advisory	PQR		4 hr
Aug 6, 7:36 AM PDT	Dense Fog Advisory	PQR		4 hr
Aug 15, 10:49 PM PDT	Dense Fog Advisory	PQR		12 hr
Aug 17, 1:45 AM PDT	Dense Fog Advisory	PQR		4 hr
Sep 29, 5:36 PM PDT	Dense Fog Advisory	PDT	Gilliam, Grant, Morrow, Umatilla, Union, Wallowa and 1 more	15 hr
Oct 5, 3:40 AM PDT	Dense Fog Advisory	PQR		5 hr
Oct 17, 2:35 AM PDT	Dense Fog Advisory	PQR		8 hr
Oct 17, 8:57 PM PDT	Dense Fog Advisory	PQR		15 hr
Oct 19, 4:57 AM PDT	Dense Fog Advisory	PQR		8 hr
Oct 20, 10:52 PM PDT	Dense Fog Advisory	PQR		8 hr
Nov 2, 8:45 PM PDT	Dense Fog Advisory	BOI	Harney	14 hr
Nov 3, 6:53 AM PDT	Dense Fog Advisory	MFR	Klamath	4 hr
Nov 3, 12:33 PM PDT	Dense Fog Advisory	BOI	Malheur	17 hr
Nov 4, 10:25 PM PDT	Dense Fog Advisory	PDT	Gilliam, Sherman, Wasco	14 hr
Nov 8, 2:30 PM PST	Dense Fog Advisory	PQR		20 hr
Nov 10, 6:42 AM PST	Dense Fog Advisory	PQR		3 hr
Nov 16, 12:45 AM PST	Dense Fog Advisory	PDT	Umatilla, Union, Wallowa	9 hr
Nov 17, 2:35 AM PST	Dense Fog Advisory	PDT	Morrow, Umatilla	10 hr
Nov 18, 12:42 AM PST	Dense Fog Advisory	PDT	Crook, Deschutes, Gilliam, Jefferson, Morrow, Sherman and 2 more	11 hr
Nov 18, 2:54 AM PST	Dense Fog Advisory	PQR		6 hr
Nov 20, 12:12 AM PST	Dense Fog Advisory	PQR		10 hr
Nov 20, 7:04 PM PST	Dense Fog Advisory	PQR		15 hr
Nov 22, 4:49 PM PST	Dense Fog Advisory	PDT	Sherman, Umatilla, Union, Wallowa, Wasco	19 hr
Nov 27, 6:13 PM PST	Dense Fog Advisory	MFR	Coos, Douglas	16 hr
Dec 5, 11:17 PM PST	Dense Fog Advisory	MFR	Jackson	10 hr
Dec 9, 3:32 AM PST	Dense Fog Advisory	PQR		5 hr
Dec 10, 8:41 PM PST	Dense Fog Advisory	PDT	Gilliam, Morrow, Umatilla, Wheeler	15 hr
Dec 11, 6:58 PM PST	Dense Fog Advisory	PDT	Crook, Deschutes, Gilliam, Jefferson, Morrow, Sherman and 3 more	15 hr
Dec 12, 8:27 PM PST	Dense Fog Advisory	PDT	Gilliam, Morrow, Sherman, Wasco, Wheeler	11 hr
Dec 13, 12:57 AM PST	Dense Fog Advisory	PQR		12 hr
Dec 14, 1:14 AM PST	Dense Fog Advisory	PQR		5 hr
Dec 14, 7:43 PM PST	Dense Fog Advisory	PQR		17 hr
Dec 14, 10:51 PM PST	Dense Fog Advisory	MFR	Coos, Curry, Douglas, Josephine	11 hr
Dec 15, 8:13 AM PST	Dense Fog Advisory	PDT	Crook, Deschutes, Jefferson, Sherman, Umatilla, Wasco	5 hr
Dec 15, 7:22 PM PST	Dense Fog Advisory	PQR		17 hr
Dec 15, 7:31 PM PST	Dense Fog Advisory	PDT	Crook, Deschutes, Jefferson, Sherman, Umatilla, Wasco	17 hr
Dec 16, 8:12 AM PST	Dense Fog Advisory	BOI	Malheur	4 hr
Dec 16, 12:40 PM PST	Dense Fog Advisory	BOI	Malheur	22 hr
Dec 16, 4:41 PM PST	Dense Fog Advisory	PQR		19 hr
Dec 16, 8:09 PM PST	Dense Fog Advisory	PDT	Umatilla	17 hr
Dec 17, 2:39 AM PST	Dense Fog Advisory	MFR	Coos, Curry, Douglas, Josephine	7 hr
Dec 19, 5:36 PM PST	Dense Fog Advisory	PQR		16 hr
Dec 19, 8:07 PM PST	Dense Fog Advisory	PDT	Crook, Deschutes, Jefferson, Sherman, Umatilla, Wasco	16 hr
Dec 20, 6:28 AM PST	Dense Fog Advisory	BOI	Malheur	5 hr
Dec 20, 1:11 PM PST	Dense Fog Advisory	BOI	Harney, Malheur	23 hr
Dec 20, 4:51 PM PST	Dense Fog Advisory	PQR		19 hr
Dec 20, 7:50 PM PST	Dense Fog Advisory	MFR	Coos, Curry, Douglas, Jackson, Josephine	14 hr
Dec 21, 1:06 PM PST	Dense Fog Advisory	BOI	Baker, Harney, Malheur	21 hr
Dec 21, 3:33 PM PST	Dense Fog Advisory	PDT	Gilliam, Morrow, Umatilla, Wheeler	18 hr
Dec 21, 6:34 PM PST	Dense Fog Advisory	MFR	Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more	12 hr
Dec 21, 7:15 PM PST	Dense Fog Advisory	PQR		10 hr
Dec 23, 1:30 AM PST	Dense Fog Advisory	PQR		11 hr
Dec 23, 3:05 AM PST	Dense Fog Advisory	MFR	Curry, Jackson, Josephine	8 hr
Dec 26, 4:37 PM PST	Dense Fog Advisory	PDT	Umatilla, Union, Wallowa	75 min
Dec 26, 5:52 PM PST	Dense Fog Advisory	PDT	Umatilla	11 hr
Dec 27, 9:23 PM PST	Dense Fog Advisory	PDT	Crook, Deschutes, Gilliam, Jefferson, Morrow, Sherman and 3 more	4 days
Dec 29, 7:43 AM PST	Dense Fog Advisory	BOI	Malheur	6 hr
Dec 31, 12:45 AM PST	Dense Fog Advisory	PQR		11 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 now Tornadoes on record The radar archive 2022 2024

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. Warning verification from the Mesonet's Cow. Rebuilt daily.