Alert archive / Illinois / Winter Weather Advisories

Winter Weather Advisories in Illinois, 2025

57 winter weather advisories in 2025. 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 2025. Tap one for its archive.

Winter Weather Advisories: 57
Busiest month: February18 winter weather advisories
Busiest day: November 30, 20256 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 1, 8:37 PM CST	Winter Weather Advisory	DVN	Bureau, Henry, Mercer, Putnam, Rock Island, Whiteside	23 hr
Jan 4, 1:46 AM CST	Winter Weather Advisory	PAH	Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more	58 hr
Jan 4, 2:16 AM CST	Winter Weather Advisory	DVN	Henderson, Warren	48 hr
Jan 4, 2:49 AM CST	Winter Weather Advisory	ILX	Knox, McLean, Peoria, Tazewell, Woodford	55 hr
Jan 4, 1:39 PM CST	Winter Weather Advisory	LOT	Cook, DuPage, Ford, Iroquois, Lake	50 hr
Jan 8, 1:39 PM CST	Winter Weather Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more	12 hr
Jan 8, 1:59 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	52 hr
Jan 9, 2:39 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 26 more	42 hr
Feb 4, 2:41 AM CST	Winter Weather Advisory	LSX	Adams, Brown, Calhoun, Greene, Pike	48 hr
Feb 4, 1:59 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	37 hr
Feb 4, 2:15 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more	37 hr
Feb 4, 2:21 PM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	40 hr
Feb 8, 2:00 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	16 hr
Feb 10, 1:43 PM CST	Winter Weather Advisory	PAH	Franklin, Gallatin, Hamilton, Hardin, Jackson, Johnson and 5 more	20 hr
Feb 11, 3:18 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 24 more	42 hr
Feb 11, 3:21 AM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	39 hr
Feb 11, 11:41 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	39 hr
Feb 11, 1:22 PM CST	Winter Weather Advisory	DVN	Stephenson	20 hr
Feb 12, 12:23 PM CST	Winter Weather Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 2 more	14 hr
Feb 14, 3:02 AM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Rock Island, Stephenson	35 hr
Feb 14, 2:04 PM CST	Winter Weather Advisory	LOT	Ford, Iroquois	14 hr
Feb 14, 2:20 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 18 more	15 hr
Feb 16, 1:53 AM CST	Winter Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	6 hr
Feb 16, 1:42 PM CST	Winter Weather Advisory	LSX	Adams	28 hr
Feb 17, 1:44 PM CST	Winter Weather Advisory	LSX	Bond, Calhoun, Clinton, Madison, Marion, Monroe and 3 more	37 hr
Feb 17, 1:47 PM CST	Winter Weather Advisory	PAH	Edwards, Jefferson, Wabash, Wayne	42 hr
Mar 5, 2:18 AM CST	Winter Weather Advisory	DVN	Rock Island	13 hr
Mar 7, 1:27 AM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson	12 hr
Mar 19, 11:56 PM CDT	Winter Weather Advisory	ILX	Knox, Marshall, Peoria, Stark, Woodford	7 hr
Mar 20, 12:03 AM CDT	Winter Weather Advisory	LOT	Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 5 more	7 hr
Mar 20, 3:50 AM CDT	Winter Weather Advisory	DVN	Bureau, Putnam	3 hr
Nov 9, 2:24 AM CST	Winter Weather Advisory	LOT	Cook, DuPage, Ford, Iroquois, Will	36 hr
Nov 9, 9:13 PM CST	Winter Weather Advisory	ILX	Champaign, Coles, Douglas, Edgar, Vermilion	12 hr
Nov 28, 2:17 AM CST	Winter Weather Advisory	LSX	Bond, Calhoun, Clinton, Fayette, Jersey, Madison and 4 more	39 hr
Nov 28, 12:20 PM CST	Winter Weather Advisory	ILX	Clark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more	32 hr
Nov 28, 12:42 PM CST	Winter Weather Advisory	PAH	Edwards, Jefferson, Wabash, Wayne	24 hr
Nov 30, 1:51 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Kane, Kendall and 6 more	10 hr
Nov 30, 2:08 AM CST	Winter Weather Advisory	DVN	Carroll, Henry, Jo Daviess, Rock Island, Stephenson, Whiteside	10 hr
Nov 30, 12:16 PM CST	Winter Weather Advisory	PAH	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	39 hr
Nov 30, 12:51 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	38 hr
Nov 30, 1:07 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	38 hr
Nov 30, 1:12 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more	35 hr
Dec 1, 1:54 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more	25 hr
Dec 5, 1:19 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	41 hr
Dec 6, 2:34 AM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 8 more	32 hr
Dec 6, 2:39 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Clark, Coles, DeWitt, Douglas and 17 more	27 hr
Dec 9, 3:10 AM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson	30 hr
Dec 11, 1:44 AM CST	Winter Weather Advisory	DVN	Hancock, Henderson, Henry, McDonough, Mercer, Rock Island and 1 more	22 hr
Dec 11, 1:44 AM CST	Winter Weather Advisory	PAH	Edwards, Wabash, Wayne	27 hr
Dec 11, 1:46 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	27 hr
Dec 11, 1:32 PM CST	Winter Weather Advisory	LSX	Brown, Fayette, Macoupin, Montgomery	10 hr
Dec 12, 3:24 AM CST	Winter Weather Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more	39 hr
Dec 12, 1:05 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Crawford and 26 more	29 hr
Dec 12, 1:20 PM CST	Winter Weather Advisory	LSX	Adams, Brown, Fayette, Greene, Macoupin, Montgomery and 1 more	29 hr
Dec 12, 2:21 PM CST	Winter Weather Advisory	LOT	Ford, Grundy, Iroquois, Kankakee, LaSalle, Livingston	28 hr
Dec 28, 2:09 AM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson	31 hr
Dec 28, 9:07 PM CST	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, Kane, Lake, McHenry and 2 more	13 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 2024 2026

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.