Alert archive / Illinois / Winter Weather Advisories

Winter Weather Advisories in Illinois, 2024

37 winter weather advisories in 2024. 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 winter weather advisories reaches back to 2005.

Winter Weather Advisories by county

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

Winter Weather Advisories: 37
Busiest month: January20 winter weather advisories
Busiest day: January 21, 20245 winter weather 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 8, 2:39 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, DeWitt, Logan, McLean, Macon and 9 more	48 hr
Jan 8, 2:41 AM CST	Winter Weather Advisory	LSX	Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 2 more	40 hr
Jan 8, 3:00 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	47 hr
Jan 11, 2:14 AM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	3 days
Jan 11, 2:52 AM CST	Winter Weather Advisory	ILX	Champaign, DeWitt, Fulton, Logan, McLean, Macon and 7 more	48 hr
Jan 11, 3:06 AM CST	Winter Weather Advisory	LSX	Adams, Brown	45 hr
Jan 11, 2:22 PM CST	Winter Weather Advisory	LOT	Cook, Ford, Grundy, Iroquois, Kankakee, Kendall and 3 more	46 hr
Jan 12, 9:31 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 10 more	26 hr
Jan 13, 1:56 PM CST	Winter Weather Advisory	PAH	Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more	52 hr
Jan 13, 2:17 PM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 10 more	20 hr
Jan 18, 2:25 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, DeWitt, Fulton, Knox, Logan and 12 more	28 hr
Jan 18, 2:37 AM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	27 hr
Jan 18, 3:41 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	26 hr
Jan 21, 1:53 AM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	43 hr
Jan 21, 2:29 AM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	60 hr
Jan 21, 3:00 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	54 hr
Jan 21, 1:40 PM CST	Winter Weather Advisory	PAH	Edwards, Franklin, Hamilton, Jackson, Jefferson, Perry and 1 more	24 hr
Jan 21, 2:42 PM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	42 hr
Jan 22, 2:08 AM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 6 more	36 hr
Jan 22, 3:21 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Kane, Kendall and 7 more	33 hr
Feb 11, 2:17 PM CST	Winter Weather Advisory	PAH	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more	27 hr
Feb 15, 1:06 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	28 hr
Feb 15, 1:32 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 24 more	28 hr
Feb 16, 3:05 AM CST	Winter Weather Advisory	DVN	Hancock, McDonough	11 hr
Feb 16, 10:10 AM CST	Winter Weather Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 6 more	11 hr
Mar 21, 2:31 AM CDT	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	34 hr
Mar 21, 3:30 AM CDT	Winter Weather Advisory	LOT	Boone, Lake, McHenry, Winnebago	37 hr
Apr 2, 1:13 PM CDT	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	24 hr
Apr 2, 3:52 PM CDT	Winter Weather Advisory	LOT	Boone, DeKalb, Lee, McHenry, Ogle, Winnebago	19 hr
Nov 21, 3:58 AM CST	Winter Weather Advisory	LOT	Cook, DuPage, Iroquois, Kane, Kankakee, Kendall and 3 more	11 hr
Nov 29, 2:20 PM CST	Winter Weather Advisory	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 7 more	32 hr
Nov 30, 1:28 AM CST	Winter Weather Advisory	ILX	Clay, Crawford, Effingham, Jasper, Lawrence, Richland	23 hr
Nov 30, 2:13 AM CST	Winter Weather Advisory	PAH	Edwards, Hamilton, Jefferson, Wabash, Wayne, White	26 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 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

By county

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

62 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 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. Warning verification from the Mesonet's Cow. Rebuilt daily.