Alert archive / Illinois / Dense Fog Advisories

Dense Fog Advisories in Illinois, 2014

48 dense fog advisories in 2014. 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 2014. Tap one for its archive.

Dense Fog Advisories: 48
Busiest month: December11 dense fog advisories
Busiest day: December 5, 20144 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, 4:30 AM CST	Dense Fog Advisory	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	6 hr
Jan 10, 7:33 PM CST	Dense Fog Advisory	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 16 more	10 hr
Jan 10, 7:42 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	8 hr
Feb 20, 1:53 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	5 hr
Feb 20, 2:40 PM CST	Dense Fog Advisory	ILX	Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more	2 hr
Apr 29, 5:49 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	3 hr
May 21, 9:12 AM CDT	Dense Fog Advisory	LOT	Lake	3 hr
Jun 12, 5:05 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 26 more	4 hr
Jun 20, 7:22 PM CDT	Dense Fog Advisory	LOT	Lake	14 hr
Jun 22, 7:44 PM CDT	Dense Fog Advisory	LOT	Lake	10 hr
Jun 25, 2:48 AM CDT	Dense Fog Advisory	LOT	Lake	6 hr
Jun 26, 4:15 AM CDT	Dense Fog Advisory	ILX	Champaign, McLean, Tazewell, Vermilion, Woodford	5 hr
Jun 26, 7:47 PM CDT	Dense Fog Advisory	LOT	Lake	14 hr
Aug 6, 4:16 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 21 more	5 hr
Aug 17, 4:49 AM CDT	Dense Fog Advisory	DVN	Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more	4 hr
Aug 18, 3:21 AM CDT	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 24 more	6 hr
Aug 18, 3:47 AM CDT	Dense Fog Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 9 more	5 hr
Aug 18, 4:43 AM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more	4 hr
Aug 19, 3:53 AM CDT	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	5 hr
Aug 22, 1:24 AM CDT	Dense Fog Advisory	LOT	Lake, McHenry	9 hr
Aug 23, 4:47 AM CDT	Dense Fog Advisory	LOT	Boone, Lake, McHenry, Winnebago	4 hr
Aug 24, 5:02 AM CDT	Dense Fog Advisory	DVN	Hancock, Henderson, McDonough	4 hr
Sep 3, 4:05 AM CDT	Dense Fog Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 7 more	5 hr
Sep 3, 4:14 AM CDT	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Madison, Marion, Monroe and 3 more	5 hr
Sep 17, 1:26 AM CDT	Dense Fog Advisory	ILX	Clark, Clay, Coles, Crawford, Cumberland, Douglas and 7 more	8 hr
Sep 17, 1:36 AM CDT	Dense Fog Advisory	LSX	Bond, Clinton, Fayette, Marion, Washington	7 hr
Sep 17, 3:41 AM CDT	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	5 hr
Sep 18, 3:58 AM CDT	Dense Fog Advisory	LSX	Adams, Brown, Pike	5 hr
Oct 23, 3:12 PM CDT	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	21 hr
Oct 24, 5:02 AM CDT	Dense Fog Advisory	LSX	Adams	4 hr
Oct 24, 8:59 AM CDT	Dense Fog Advisory	ILX	Cass, Fulton, Knox, Marshall, Mason, Menard and 8 more	3 hr
Oct 24, 9:08 AM CDT	Dense Fog Advisory	LSX	Adams, Brown, Pike	112 min
Oct 24, 8:58 PM CDT	Dense Fog Advisory	DVN	Hancock, Henderson, Henry, Jo Daviess, McDonough, Mercer and 2 more	12 hr
Oct 24, 9:44 PM CDT	Dense Fog Advisory	LSX	Adams, Brown	11 hr
Oct 24, 10:36 PM CDT	Dense Fog Advisory	ILX	Cass, Fulton, Knox, McLean, Marshall, Mason and 8 more	12 hr
Nov 5, 3:18 AM CST	Dense Fog Advisory	ILX	Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more	6 hr
Nov 30, 1:09 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, Grundy, Kane, Kendall, LaSalle and 4 more	9 hr
Dec 4, 7:47 PM CST	Dense Fog Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	12 hr
Dec 5, 12:35 AM CST	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 7 more	5 hr
Dec 5, 12:44 AM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	9 hr
Dec 5, 1:33 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	10 hr
Dec 13, 8:44 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, McHenry, Ogle, Winnebago	3 hr
Dec 14, 12:06 AM CST	Dense Fog Advisory	DVN	Carroll, Jo Daviess, Stephenson	3 hr
Dec 14, 7:29 AM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	4 hr
Dec 14, 9:30 AM CST	Dense Fog Advisory	DVN	Jo Daviess	3 hr
Dec 14, 1:59 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Henderson, Henry, Jo Daviess, McDonough and 6 more	18 hr
Dec 14, 6:15 PM CST	Dense Fog Advisory	LOT	Boone, DeKalb, Grundy, Kane, Kendall, LaSalle and 5 more	14 hr
Dec 14, 6:32 PM CST	Dense Fog Advisory	ILX	Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more	13 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 2013 2015

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.