Alert archive / Illinois / Dense Fog Advisories

Dense Fog Advisories in Illinois, 2013

55 dense fog advisories in 2013. 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 2013. Tap one for its archive.

Dense Fog Advisories: 55
Busiest month: October10 dense fog advisories
Busiest day: December 3, 20136 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
Jan 10, 3:17 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	27 hr
Jan 11, 2:40 AM CST	Dense Fog Advisory	ILX	Fulton, Knox, Schuyler, Stark	8 hr
Jan 11, 3:34 AM CST	Dense Fog Advisory	LOT	Lee, Ogle, Winnebago	8 hr
Jan 28, 7:52 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	22 hr
Jan 28, 3:54 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	11 hr
Jan 28, 4:58 PM CST	Dense Fog Advisory	ILX	Champaign, Coles, DeWitt, Douglas, Edgar, Fulton and 13 more	7 hr
Jan 29, 3:03 AM CST	Dense Fog Advisory	LOT	Boone, Lake, McHenry, Winnebago	117 min
Mar 10, 6:37 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	21 hr
Mar 10, 3:28 PM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, Kane, Lake, LaSalle, Lee and 3 more	16 hr
Mar 29, 11:57 PM CDT	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	9 hr
Mar 30, 4:49 AM CDT	Dense Fog Advisory	LSX	Clinton, Marion, Monroe, Randolph, Saint Clair, Washington	4 hr
Mar 30, 4:50 AM CDT	Dense Fog Advisory	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	5 hr
Apr 9, 12:20 AM CDT	Dense Fog Advisory	LOT	Lake	11 hr
Apr 28, 5:43 PM CDT	Dense Fog Advisory	LOT	Lake	12 hr
Apr 29, 3:16 AM CDT	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	5 hr
Apr 29, 3:37 AM CDT	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Madison, Marion, Monroe and 4 more	4 hr
May 18, 2:46 AM CDT	Dense Fog Advisory	PAH	Alexander, Jackson, Pulaski, Union	6 hr
Jun 10, 4:15 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 1 more	4 hr
Jun 10, 5:52 PM CDT	Dense Fog Advisory	LOT	Lake	14 hr
Jul 21, 3:42 AM CDT	Dense Fog Advisory	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 10 more	4 hr
Jul 21, 5:41 AM CDT	Dense Fog Advisory	LOT	Ford, Iroquois, Livingston	3 hr
Jul 22, 3:33 AM CDT	Dense Fog Advisory	DVN	Hancock, Henderson, McDonough, Warren	4 hr
Jul 22, 3:33 AM CDT	Dense Fog Advisory	LSX	Adams, Brown, Calhoun, Pike	4 hr
Jul 31, 7:11 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, DeWitt, Fulton, Logan and 13 more	3 hr
Aug 6, 5:25 AM CDT	Dense Fog Advisory	DVN	Hancock, Henderson, Jo Daviess, McDonough, Mercer, Rock Island and 1 more	4 hr
Aug 6, 5:30 AM CDT	Dense Fog Advisory	ILX	Cass, Christian, Fulton, Knox, Mason, Menard and 4 more	4 hr
Aug 6, 5:44 AM CDT	Dense Fog Advisory	LSX	Adams, Brown, Greene, Macoupin, Montgomery, Pike	3 hr
Aug 19, 3:44 AM CDT	Dense Fog Advisory	PAH	Alexander, Hardin, Jackson, Johnson, Massac, Pope and 4 more	5 hr
Aug 23, 1:19 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, Ford, Grundy, Iroquois, Kankakee and 6 more	8 hr
Aug 23, 2:23 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more	7 hr
Sep 1, 4:27 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	6 hr
Sep 1, 6:02 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, DeWitt, Douglas, Fulton and 19 more	3 hr
Sep 1, 6:15 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	3 hr
Sep 26, 5:53 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	3 hr
Sep 29, 3:52 AM CDT	Dense Fog Advisory	LSX	Adams	5 hr
Oct 2, 4:45 AM CDT	Dense Fog Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston	5 hr
Oct 2, 4:53 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	5 hr
Oct 2, 5:07 AM CDT	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	4 hr
Oct 3, 7:26 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kankakee and 6 more	3 hr
Oct 5, 2:22 AM CDT	Dense Fog Advisory	LOT	Lake, McHenry	6 hr
Oct 30, 5:11 AM CDT	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 9 more	4 hr
Oct 30, 5:20 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	8 hr
Oct 30, 5:32 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	4 hr
Oct 30, 5:45 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, Ford, Grundy, Iroquois, Kane and 7 more	5 hr
Oct 30, 9:13 AM CDT	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Greene, Jersey, Macoupin and 5 more	94 min
Dec 2, 10:52 PM CST	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Greene and 9 more	11 hr
Dec 2, 11:09 PM CST	Dense Fog Advisory	PAH	Alexander, Jackson, Perry, Pulaski, Union	9 hr
Dec 3, 3:23 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	38 hr
Dec 3, 3:24 AM CST	Dense Fog Advisory	ILX	Cass, Christian, DeWitt, Fulton, Knox, Logan and 13 more	8 hr
Dec 3, 6:50 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, Grundy, Kane, Kendall, LaSalle and 5 more	6 hr
Dec 3, 1:58 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Kane, Kendall, Lake and 5 more	27 hr
Dec 3, 9:19 PM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	15 hr
Dec 4, 5:43 AM CST	Dense Fog Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 8 more	2 hr
Dec 19, 11:39 PM CST	Dense Fog Advisory	LOT	Ford, Iroquois, Kankakee, Livingston	19 hr
Dec 20, 7:06 PM CST	Dense Fog Advisory	LOT	Ford, Iroquois, Kankakee, Livingston	114 min

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 2012 2014

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.