Alert archive / Illinois / Dense Fog Advisories

Dense Fog Advisories in Illinois, 2007

48 dense fog advisories in 2007. 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 2007. Tap one for its archive.

Dense Fog Advisories: 48
Busiest month: December15 dense fog advisories
Busiest day: March 24, 20074 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	Counties	Lasted
Mar 9, 6:37 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Kane, Kendall, Lake and 4 more	6 hr
Mar 10, 5:17 AM CST	Dense Fog Advisory	LOT	Grundy, Iroquois, Kankakee, Kendall	4 hr
Mar 12, 10:27 PM CDT	Dense Fog Advisory	DVN	Jo Daviess	4 hr
Mar 23, 6:25 PM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kankakee and 7 more	16 hr
Mar 23, 7:24 PM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more	17 hr
Mar 24, 2:42 AM CDT	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Madison, Marion, Monroe and 3 more	7 hr
Mar 24, 2:58 AM CDT	Dense Fog Advisory	PAH	Edwards, Franklin, Hamilton, Jackson, Jefferson, Perry and 3 more	5 hr
Mar 24, 3:01 AM CDT	Dense Fog Advisory	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	6 hr
Mar 29, 3:33 AM CDT	Dense Fog Advisory	PAH	Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 2 more	6 hr
Mar 29, 3:54 AM CDT	Dense Fog Advisory	LSX	Randolph	6 hr
Apr 26, 8:03 PM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Kane, Kendall, Lake and 1 more	4 hr
May 9, 10:25 AM CDT	Dense Fog Advisory	LOT	Lake	3 hr
Jun 1, 3:29 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	6 hr
Jun 1, 3:46 AM CDT	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	5 hr
Jun 1, 3:59 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	6 hr
Jun 1, 4:03 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more	5 hr
Jun 3, 5:33 AM CDT	Dense Fog Advisory	ILX	DeWitt, Logan, McLean, Tazewell, Woodford	2 hr
Jun 25, 6:00 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more	4 hr
Jun 25, 6:04 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	4 hr
Aug 16, 3:27 AM CDT	Dense Fog Advisory	DVN	Carroll, Jo Daviess, Stephenson	5 hr
Aug 16, 11:26 PM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 23 more	10 hr
Aug 17, 12:26 AM CDT	Dense Fog Advisory	LOT	Ford, Iroquois, LaSalle, Livingston	9 hr
Aug 17, 1:43 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more	7 hr
Aug 17, 5:45 AM CDT	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Fayette, Greene and 6 more	3 hr
Sep 20, 7:09 PM CDT	Dense Fog Advisory	LOT	Lake	9 hr
Sep 27, 4:57 AM CDT	Dense Fog Advisory	LOT	DuPage, Grundy, Iroquois, Kane, Kankakee, Kendall	6 hr
Oct 1, 11:02 PM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	13 hr
Oct 17, 3:35 AM CDT	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	5 hr
Oct 17, 3:39 AM CDT	Dense Fog Advisory	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 14 more	5 hr
Oct 17, 3:48 AM CDT	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Jersey, Macoupin, Madison and 6 more	5 hr
Nov 19, 3:00 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more	13 hr
Nov 19, 3:23 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more	20 hr
Nov 20, 11:14 AM CST	Dense Fog Advisory	DVN	Carroll, Jo Daviess, Stephenson	7 hr
Dec 8, 7:47 PM CST	Dense Fog Advisory	PAH	Alexander, Gallatin, Hardin, Massac, Pope, Pulaski	13 hr
Dec 11, 5:11 AM CST	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	5 hr
Dec 11, 7:23 AM CST	Dense Fog Advisory	LSX	Bond, Calhoun, Clinton, Fayette, Jersey, Macoupin and 7 more	6 hr
Dec 11, 7:31 AM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 23 more	8 hr
Dec 17, 3:34 AM CST	Dense Fog Advisory	DVN	Hancock, Henderson, McDonough, Mercer, Warren	5 hr
Dec 19, 7:54 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more	17 hr
Dec 20, 10:20 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	55 hr
Dec 20, 1:30 PM CST	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	21 hr
Dec 20, 3:08 PM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	40 hr
Dec 20, 9:08 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, Ford, Grundy, Kane, Kendall and 6 more	45 hr
Dec 20, 9:47 PM CST	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	12 hr
Dec 21, 3:55 AM CST	Dense Fog Advisory	LOT	DuPage, Iroquois, Kankakee, Lake	38 hr
Dec 21, 10:35 AM CST	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 10 more	11 hr
Dec 30, 7:22 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, Kane, Lee, McHenry, Ogle and 1 more	6 hr
Dec 31, 12:13 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Kane, Lake, Lee and 3 more	4 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

60 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2006 2008

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.