Dense Fog Advisories in Wyoming
415 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
- 415
- Busiest year
- 201034 dense fog advisories
- Average year
- 19over 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.
- Laramie County210
- Albany County200
- Fremont County40
- Platte County34
- Crook County31
- Goshen County28
- Carbon County24
- Weston County20
- Niobrara County15
- Big Horn County13
- Park County13
- Converse County13
- Sweetwater County11
- Campbell County11
- Lincoln County10
- Johnson County9
- Natrona County9
- Washakie County9
- Uinta County9
- Sublette County6
- Sheridan County5
- Hot Springs County4
- Teton County3
The latest dense fog advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 8:13 AM MDT | Dense Fog Advisory | CYS | Laramie | 107 min |
| Sep 22, 7:51 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 87 min |
| Sep 21, 4:57 AM MDT | Dense Fog Advisory | BYZ | Sheridan | 5 hr |
| Aug 16, 1:18 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 7 hr |
| Jun 2, 3:44 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 5 hr |
| May 29, 12:41 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 7 hr |
| May 27, 11:59 PM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 8 hr |
| May 20, 1:50 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 7 hr |
| May 1, 3:49 AM MDT | Dense Fog Advisory | CYS | Albany | 3 hr |
| Apr 26, 1:06 AM MDT | Dense Fog Advisory | CYS | Albany, Laramie | 11 hr |
| Mar 10, 8:56 AM MDT | Dense Fog Advisory | CYS | Laramie | 3 hr |
| Jan 1, 1:15 PM MST | Dense Fog Advisory | UNR | Crook | 22 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.