Alert archive / Illinois / Dense Fog Advisories / 2012
Dense Fog Advisories in Illinois, August 2012
4 dense fog advisories in August 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 August 2012. Tap one for its archive.
- Dense Fog Advisories
- 4
- Busiest day
- August 14, 20122 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 |
|---|---|---|---|---|
| Aug 14, 12:22 AM CDT | Dense Fog Advisory | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 7 more | 9 hr |
| Aug 14, 3:35 AM CDT | Dense Fog Advisory | ILX | Cass, DeWitt, Fulton, Knox, Logan, McLean and 11 more | 5 hr |
| Aug 27, 12:00 AM CDT | Dense Fog Advisory | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 6 hr |
| Aug 27, 12:03 AM CDT | Dense Fog Advisory | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 10 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Boone County2
- DeKalb County2
- DuPage County2
- Grundy County2
- Kane County2
- Kendall County2
- Lake County2
- LaSalle County2
- Lee County2
- McHenry County2
- Ogle County2
- Winnebago County2
- Livingston County1
- Cass County1
- DeWitt County1
- Fulton County1
- Knox County1
- Logan County1
- McLean County1
- Marshall County1
- Mason County1
- Menard County1
- Morgan County1
- Peoria County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Stark County1
- Tazewell County1
- Woodford County1
- Bureau County1
- Carroll County1
- Hancock County1
- Henderson County1
- Henry County1
- Jo Daviess County1
- McDonough County1
- Mercer County1
- Putnam County1
- Rock Island County1
3 more counties
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.