Weather alerts in Illinois, December 2024

Weather alerts by county

Each county as a circle sized by its count in December 2024. Tap one for its archive.

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
Nov 30, 8:39 PM CST	Small Craft Advisory	LOT		12 hr
Dec 2, 3:32 AM CST	Small Craft Advisory	LOT		24 hr
Dec 3, 3:09 AM CST	Gale Watch	LOT		13 hr
Dec 3, 3:09 AM CST	Small Craft Advisory	LOT		36 hr
Dec 3, 3:39 PM CST	Gale Warning	LOT		47 hr
Dec 4, 2:18 AM CST	Wind Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	23 hr
Dec 4, 2:19 AM CST	Wind Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	22 hr
Dec 4, 2:28 AM CST	Wind Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	22 hr
Dec 4, 7:55 PM CST	Special Weather Statement	DVN	Rock Island	50 min
Dec 4, 9:49 PM CST	Snow Squall Warning	LOT	Cook, DuPage	26 min
Dec 4, 9:57 PM CST	Wind Advisory	PAH	Edwards, Hamilton, Jefferson, Wabash, Wayne, White	5 hr
Dec 4, 10:19 PM CST	Snow Squall Warning	LOT	Cook, DuPage, Will	56 min
Dec 4, 11:36 PM CST	Special Weather Statement	LOT	Will	24 min
Dec 5, 9:00 AM CST	Small Craft Advisory	LOT		36 hr
Dec 6, 3:41 AM CST	Small Craft Advisory	LOT		17 hr
Dec 6, 9:20 PM CST	Small Craft Advisory	LOT		30 hr
Dec 10, 4:00 PM CST	Gale Warning	LOT		38 hr
Dec 10, 4:00 PM CST	Heavy Freezing Spray Warning	LOT		38 hr
Dec 11, 2:45 AM CST	Special Weather Statement	DVN	Mercer, Rock Island	45 min
Dec 11, 3:31 AM CST	Special Weather Statement	DVN	Henry, Mercer, Rock Island	44 min
Dec 11, 4:24 AM CST	Special Weather Statement	DVN	Henry, Mercer, Rock Island	66 min
Dec 11, 8:16 AM CST	Special Weather Statement	DVN	Carroll, Henry, Mercer, Rock Island, Whiteside	89 min
Dec 11, 9:51 AM CST	Special Weather Statement	DVN	Bureau, Carroll, Henry, Mercer, Putnam, Rock Island and 1 more	84 min
Dec 11, 10:23 AM CST	Special Weather Statement	PAH	Hardin, Pope	52 min
Dec 11, 11:12 AM CST	Special Weather Statement	DVN	Bureau, Putnam	78 min
Dec 12, 7:04 AM CST	Small Craft Advisory	LOT		8 hr
Dec 12, 2:39 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	51 hr
Dec 13, 2:02 AM CST	Winter Weather Advisory	ILX	Fulton, Knox, Marshall, Peoria, Schuyler, Stark and 1 more	37 hr
Dec 13, 2:48 AM CST	Ice Storm Warning	DVN	Henderson, Mercer, Rock Island	39 hr
Dec 13, 3:18 AM CST	Small Craft Advisory	LOT		54 hr
Dec 14, 1:18 AM CST	Winter Weather Advisory	LSX	Adams, Brown	6 hr
Dec 14, 2:22 AM CST	Winter Weather Advisory	LOT	Boone, DeKalb, LaSalle, Lee, McHenry, Ogle and 1 more	16 hr
Dec 14, 4:58 AM CST	Mesoscale Discussion	SPC	Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 13 more	6 hr
Dec 14, 9:31 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	14 hr
Dec 14, 9:31 PM CST	Dense Fog Advisory	LSX	Adams, Brown	7 hr
Dec 15, 12:09 AM CST	Dense Fog Advisory	ILX	Fulton, Knox, McLean, Marshall, Mason, Peoria and 4 more	11 hr
Dec 15, 2:48 AM CST	Dense Fog Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	9 hr
Dec 15, 6:19 AM CST	Marine Dense Fog Advisory	LOT		9 hr
Dec 15, 2:35 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more	21 hr
Dec 15, 3:12 PM CST	Dense Fog Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	20 hr
Dec 15, 8:33 PM CST	Dense Fog Advisory	ILX	Champaign, Christian, Clark, Coles, Cumberland, DeWitt and 18 more	14 hr
Dec 16, 2:50 AM CST	Marine Dense Fog Advisory	LOT		9 hr
Dec 16, 2:50 AM CST	Small Craft Advisory	LOT		30 hr
Dec 16, 10:42 AM CST	Mesoscale Discussion	SPC	Hardin, Massac	3 hr
Dec 17, 2:39 PM CST	Small Craft Advisory	LOT		31 hr
Dec 18, 4:28 AM CST	Areal Flood Advisory	PAH	Massac, Pope	3 hr
Dec 19, 3:40 AM CST	Small Craft Advisory	LOT		59 hr
Dec 22, 3:39 AM CST	Small Craft Advisory	LOT		29 hr
Dec 25, 1:27 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	42 hr
Dec 25, 1:34 PM CST	Dense Fog Advisory	LSX	Adams, Brown, Pike	22 hr
Dec 25, 8:30 PM CST	Marine Dense Fog Advisory	LOT		31 hr
Dec 26, 5:14 AM CST	Dense Fog Advisory	LOT	Boone, Cook, DeKalb, DuPage, Kane, Kendall and 6 more	16 hr
Dec 26, 5:30 AM CST	Dense Fog Advisory	ILX	Fulton, Knox, Schuyler	7 hr
Dec 27, 3:01 AM CST	Small Craft Advisory	LOT		30 hr
Dec 27, 2:01 PM CST	Marine Dense Fog Advisory	LOT		13 hr
Dec 28, 2:07 AM CST	Flood Watch	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more	25 hr
Dec 28, 2:15 AM CST	Dense Fog Advisory	LSX	Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more	11 hr
Dec 28, 5:52 AM CST	Dense Fog Advisory	ILX	Cass, Christian, Coles, Logan, Macon, Mason and 6 more	3 hr
Dec 28, 2:12 PM CST	Small Craft Advisory	LOT		43 hr
Dec 28, 7:27 PM CST	Dense Fog Advisory	LSX	Adams, Brown, Pike	17 hr
Dec 28, 8:19 PM CST	Dense Fog Advisory	DVN	Carroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 5 more	16 hr
Dec 29, 1:09 AM CST	Wind Advisory	PAH	Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more	12 hr
Dec 29, 1:55 AM CST	Wind Advisory	ILX	Champaign, Clark, Clay, Coles, Crawford, Cumberland and 7 more	12 hr
Dec 29, 4:09 AM CST	Gale Warning	LOT		16 hr
Dec 29, 8:35 AM CST	Areal Flood Advisory	PAH	Hamilton, Saline	3 hr
Dec 29, 10:08 AM CST	River Flood Warning	ILX	Clay, Richland	4 days
Dec 29, 1:42 PM CST	Marine Dense Fog Advisory	LOT		6 hr
Dec 29, 6:58 PM CST	Dense Fog Advisory	DVN	Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside	19 hr
Dec 30, 5:23 AM CST	Dense Fog Advisory	LOT	Boone, DeKalb, Kane, Lee, McHenry, Ogle and 1 more	7 hr
Dec 30, 9:06 AM CST	Small Craft Advisory	LOT		66 hr
Dec 30, 10:04 PM CST	Gale Warning	LOT		14 hr
Dec 31, 1:48 AM CST	Wind Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	15 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Mesoscale Discussion	2
Special Weather Statement	9
Flooding
River Flood Warning	1
Flood Watch	1
Areal Flood Advisory	2
Winter
Ice Storm Warning	1
Snow Squall Warning	2
Winter Weather Advisory	4
Wind and dust
Wind Advisory	7
Fog and smoke
Dense Fog Advisory	17
Marine
Gale Warning	4
Heavy Freezing Spray Warning	1
Gale Watch	1
Marine Dense Fog Advisory	5
Small Craft Advisory	15

By county

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

53 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2023 2025

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. Rebuilt daily.