Alert archive / Illinois / Johnson County / Dense Fog Advisories
Dense Fog Advisories in Johnson County, Illinois, 2012
8 dense fog advisories in 2012. An alert counts here when it covered this county. The archive of dense fog advisories reaches back to 2005.
Johnson County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Dense Fog Advisories
- 8
- Busiest month
- November3 dense fog advisories
- Busiest day
- January 11, 20121 dense fog advisories
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 11, 5:55 AM CST | Dense Fog Advisory | PAH | 5 hr |
| Feb 1, 7:47 AM CST | Dense Fog Advisory | PAH | 3 hr |
| Feb 17, 1:00 AM CST | Dense Fog Advisory | PAH | 3 hr |
| Sep 6, 4:00 AM CDT | Dense Fog Advisory | PAH | 5 hr |
| Nov 8, 5:44 AM CST | Dense Fog Advisory | PAH | 2 hr |
| Nov 21, 4:37 AM CST | Dense Fog Advisory | PAH | 3 hr |
| Nov 21, 9:59 PM CST | Dense Fog Advisory | PAH | 10 hr |
| Dec 7, 3:24 AM CST | Dense Fog Advisory | PAH | 6 hr |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.