Dense Fog Advisories in Alaska
1,294 dense fog advisories since 1986. 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 since 1986. Tap one for its archive.
- Dense Fog Advisories
- 1,294
- Busiest year
- 200787 dense fog advisories
- Average year
- 59over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Petersburg Borough85
- Prince of Wales-Hyder Census Area84
- Hoonah-Angoon Census Area66
- Juneau City and Borough58
- City and Borough of Wrangell35
- Ketchikan Gateway Borough31
- Yakutat City and Borough26
- Fairbanks North Star Borough23
- Anchorage Municipality18
- Matanuska-Susitna Borough13
- Sitka City and Borough6
- Kenai Peninsula Borough6
- Yukon-Koyukuk Census Area2
- Haines Borough1
- Skagway Municipality1
The latest dense fog advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 1:07 AM AKDT | Dense Fog Advisory | AJK | Hoonah-Angoon Census Area, Ketchikan Gateway, Petersburg, Prince of Wales-Hyder Census Area, City and Borough of Wrangell | 9 hr |
| Sep 17, 6:02 AM AKDT | Dense Fog Advisory | AJK | Prince of Wales-Hyder Census Area | 3 hr |
| Sep 15, 8:01 PM AKDT | Dense Fog Advisory | AJK | Prince of Wales-Hyder Census Area | 5 hr |
| Sep 15, 3:45 AM AKDT | Dense Fog Advisory | AJK | Ketchikan Gateway, Petersburg, Prince of Wales-Hyder Census Area, City and Borough of Wrangell | 8 hr |
| Sep 14, 7:30 AM AKDT | Dense Fog Advisory | AFG | Fairbanks North Star | 5 hr |
| Sep 13, 3:34 AM AKDT | Dense Fog Advisory | AJK | Prince of Wales-Hyder Census Area, Yakutat City and | 6 hr |
| Sep 9, 11:24 PM AKDT | Dense Fog Advisory | AJK | Juneau City and, Petersburg, Prince of Wales-Hyder Census Area, Yakutat City and | 11 hr |
| Sep 5, 6:24 AM AKDT | Dense Fog Advisory | AJK | Yakutat City and | 4 hr |
| Sep 1, 8:04 AM AKDT | Dense Fog Advisory | AFG | Fairbanks North Star | 116 min |
| Aug 27, 9:56 PM AKDT | Dense Fog Advisory | AJK | Hoonah-Angoon Census Area, Yakutat City and | 11 hr |
| Aug 25, 10:32 PM AKDT | Dense Fog Advisory | AJK | Petersburg, Prince of Wales-Hyder Census Area, City and Borough of Wrangell | 14 hr |
| Aug 25, 7:17 AM AKDT | Dense Fog Advisory | AJK | Hoonah-Angoon Census Area | 5 hr |
Nearby
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.