Weather alerts in Illinois, December 2023

37 weather alerts in December 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in December 2023. Tap one for its archive.

Alerts: 37
Warnings: 2
Watches: 1
Advisories: 30
Busiest day: December 23, 20237 alerts

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
Dec 1, 9:49 PM CST	Dense Fog Advisory	PAH	Gallatin, Hardin, Massac, Pope	9 hr
Dec 4, 11:18 PM CST	Freezing Fog Advisory	PAH	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more	7 hr
Dec 5, 6:12 AM CST	Special Weather Statement	DVN	Carroll, Jo Daviess, Stephenson	2 hr
Dec 6, 2:39 AM CST	Small Craft Advisory	LOT		24 hr
Dec 7, 2:58 PM CST	Small Craft Advisory	LOT		24 hr
Dec 8, 2:50 PM CST	Small Craft Advisory	LOT		46 hr
Dec 9, 7:17 AM CST	Special Marine Warning	LOT		58 min
Dec 9, 9:36 AM CST	Special Weather Statement	PAH	Pulaski	24 min
Dec 11, 9:49 AM CST	Small Craft Advisory	LOT		41 hr
Dec 16, 2:22 AM CST	Gale Watch	LOT		24 hr
Dec 17, 2:41 AM CST	Gale Warning	LOT		42 hr
Dec 17, 1:35 PM CST	Wind Advisory	DVN	Mercer, Rock Island	19 hr
Dec 17, 9:11 PM CST	Small Craft Advisory	LOT		6 hr
Dec 18, 1:21 AM CST	Freezing Fog Advisory	PAH	Alexander, Jackson, Pulaski, Union, Williamson	3 hr
Dec 18, 4:58 AM CST	Special Weather Statement	LOT	Cook, DeKalb, DuPage, Kane, Kendall, Will	2 hr
Dec 18, 10:18 AM CST	Special Weather Statement	DVN	Bureau, Putnam	27 min
Dec 18, 6:16 PM CST	Small Craft Advisory	LOT		15 hr
Dec 19, 8:58 AM CST	Small Craft Advisory	LOT		16 hr
Dec 22, 6:23 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	18 hr
Dec 22, 6:28 PM CST	Dense Fog Advisory	ILX	Cass, Champaign, DeWitt, Fulton, Knox, Logan and 12 more	19 hr
Dec 22, 8:40 PM CST	Dense Fog Advisory	LSX	Adams, Brown	12 hr
Dec 22, 11:35 PM CST	Dense Fog Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	12 hr
Dec 23, 2:22 AM CST	Marine Dense Fog Advisory	LOT		37 hr
Dec 23, 3:29 PM CST	Dense Fog Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	21 hr
Dec 23, 4:15 PM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	20 hr
Dec 23, 6:31 PM CST	Dense Fog Advisory	ILX	Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more	17 hr
Dec 24, 1:19 AM CST	Dense Fog Advisory	LSX	Adams, Bond, Brown, Calhoun, Greene, Jersey and 5 more	8 hr
Dec 24, 2:45 PM CST	Small Craft Advisory	LOT		30 hr
Dec 25, 8:58 PM CST	Marine Dense Fog Advisory	LOT		4 hr
Dec 27, 4:13 AM CST	Small Craft Advisory	LOT		71 hr
Dec 28, 5:59 AM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more	18 hr
Dec 30, 2:02 AM CST	Dense Fog Advisory	DVN	Bureau, Carroll, Henry, Jo Daviess, Putnam, Rock Island and 2 more	8 hr
Dec 30, 6:56 AM CST	Dense Fog Advisory	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more	5 hr
Dec 30, 7:01 AM CST	Dense Fog Advisory	ILX	McLean, Marshall, Peoria, Stark, Tazewell, Woodford	4 hr
Dec 30, 5:56 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more	18 hr
Dec 30, 6:15 PM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	17 hr
Dec 30, 7:40 PM CST	Winter Weather Advisory	ILX	Champaign, DeWitt, Knox, McLean, Marshall, Peoria and 5 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
Special Weather Statement	4
Winter
Winter Weather Advisory	4
Wind and dust
Wind Advisory	1
Fog and smoke
Dense Fog Advisory	12
Freezing Fog Advisory	2
Marine
Gale Warning	1
Special Marine Warning	1
Gale Watch	1
Marine Dense Fog Advisory	2
Small Craft Advisory	9

By county

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

43 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2022 2024

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.