Alert archive / Illinois / Dense Fog Advisories / 2012
Dense Fog Advisories in Illinois, September 2012
7 dense fog advisories in September 2012. 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 September 2012. Tap one for its archive.
- Dense Fog Advisories
- 7
- Busiest day
- September 14, 20123 dense fog advisories
Over time
By day
Days in UTC, the clock the archive keeps.
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 | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 4:00 AM CDT | Dense Fog Advisory | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 5 hr |
| Sep 6, 4:45 AM CDT | Dense Fog Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 20 more | 4 hr |
| Sep 14, 3:11 AM CDT | Dense Fog Advisory | ILX | Fulton, Knox, Marshall, Peoria, Schuyler, Stark | 5 hr |
| Sep 14, 3:34 AM CDT | Dense Fog Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more | 4 hr |
| Sep 14, 4:00 AM CDT | Dense Fog Advisory | LOT | Boone, DeKalb, Kane, Kendall, LaSalle, Lee and 3 more | 4 hr |
| Sep 17, 4:24 AM CDT | Dense Fog Advisory | ILX | Cass, Christian, DeWitt, Fulton, Knox, Logan and 16 more | 8 hr |
| Sep 26, 2:28 AM CDT | Dense Fog Advisory | LOT | DeKalb, DuPage, Grundy, Kane, Kendall, LaSalle and 3 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cass County2
- Christian County2
- DeWitt County2
- Logan County2
- McLean County2
- Macon County2
- Menard County2
- Morgan County2
- Moultrie County2
- Piatt County2
- Sangamon County2
- Scott County2
- Shelby County2
- Fulton County2
- Knox County2
- Marshall County2
- Peoria County2
- Schuyler County2
- Stark County2
- DeKalb County2
- Kane County2
- Kendall County2
- LaSalle County2
- Lee County2
- Ogle County2
- Alexander County1
- Edwards County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry County1
- Pope County1
- Pulaski County1
- Saline County1
- Union County1
38 more counties
- Wabash County1
- Wayne County1
- White County1
- Williamson County1
- Champaign County1
- Clark County1
- Clay County1
- Coles County1
- Crawford County1
- Cumberland County1
- Douglas County1
- Edgar County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Richland County1
- Vermilion County1
- Bureau County1
- Carroll County1
- Hancock County1
- Henderson County1
- Henry County1
- McDonough County1
- Mercer County1
- Putnam County1
- Rock Island County1
- Stephenson County1
- Warren County1
- Whiteside County1
- Boone County1
- McHenry County1
- Winnebago County1
- Mason County1
- Tazewell County1
- Woodford County1
- DuPage County1
- Grundy County1
- Livingston County1
Nearby
Alerts in force nowTornadoes on recordThe 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.