Alert archive / Illinois / Winter Weather Advisories

Winter Weather Advisories in Illinois, 2020

48 winter weather advisories in 2020. 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 2020. Tap one for its archive.

Winter Weather Advisories: 48
Busiest month: January20 winter weather advisories
Busiest day: January 16, 20205 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 10, 2:55 AM CST	Winter Weather Advisory	ILX	Cass, Fulton, Knox, Logan, McLean, Marshall and 10 more	44 hr
Jan 10, 3:17 AM CST	Winter Weather Advisory	DVN	Bureau, McDonough, Putnam, Warren	45 hr
Jan 10, 3:58 AM CST	Winter Weather Advisory	LSX	Brown, Calhoun, Greene, Jersey, Macoupin, Madison and 3 more	41 hr
Jan 10, 11:44 AM CST	Winter Weather Advisory	LOT	DuPage, Grundy, Kane, Kankakee, Kendall, Lake and 2 more	38 hr
Jan 12, 7:37 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	7 hr
Jan 14, 2:11 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more	24 hr
Jan 14, 2:33 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Kane, Kendall, Lake and 5 more	21 hr
Jan 16, 2:17 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 5 more	52 hr
Jan 16, 2:44 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	51 hr
Jan 16, 2:52 PM CST	Winter Weather Advisory	PAH	Jackson, Jefferson, Perry, Wayne	22 hr
Jan 16, 2:57 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	33 hr
Jan 16, 3:10 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	39 hr
Jan 21, 3:15 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	3 days
Jan 23, 9:06 PM CST	Winter Weather Advisory	DVN	Hancock, Henderson, Henry, McDonough, Mercer, Rock Island and 1 more	15 hr
Jan 23, 9:43 PM CST	Winter Weather Advisory	ILX	Cass, Fulton, Knox, Mason, Menard, Morgan and 3 more	8 hr
Jan 24, 3:12 AM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more	35 hr
Jan 24, 5:57 AM CST	Winter Weather Advisory	ILX	Fulton, Knox, Schuyler	4 hr
Jan 24, 1:05 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Putnam, Stephenson, Whiteside	23 hr
Jan 28, 3:26 AM CST	Winter Weather Advisory	LSX	Madison, Monroe, Randolph, Saint Clair	34 hr
Jan 29, 7:19 AM CST	Winter Weather Advisory	PAH	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more	4 hr
Feb 4, 3:33 AM CST	Winter Weather Advisory	LSX	Calhoun, Greene, Jersey, Macoupin, Madison, Montgomery and 1 more	20 hr
Feb 4, 2:46 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	45 hr
Feb 4, 3:04 PM CST	Winter Weather Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Putnam and 1 more	38 hr
Feb 4, 3:28 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Clay, Coles and 29 more	45 hr
Feb 5, 2:23 AM CST	Winter Weather Advisory	LOT	Ford, Iroquois, Kankakee, Livingston	33 hr
Feb 8, 3:03 AM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Jo Daviess, Putnam, Stephenson, Whiteside	36 hr
Feb 8, 1:38 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	26 hr
Feb 11, 2:38 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more	52 hr
Feb 11, 2:40 PM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Clark, Coles, Cumberland and 23 more	43 hr
Feb 11, 3:00 PM CST	Winter Weather Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	45 hr
Feb 11, 3:27 PM CST	Winter Weather Advisory	LSX	Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more	36 hr
Feb 24, 2:23 PM CST	Winter Weather Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 2 more	28 hr
Feb 24, 3:29 PM CST	Winter Weather Advisory	LSX	Adams, Bond, Brown, Calhoun, Fayette, Greene and 7 more	44 hr
Feb 25, 3:06 AM CST	Winter Weather Advisory	ILX	Cass, Champaign, Christian, Coles, DeWitt, Douglas and 21 more	35 hr
Feb 25, 3:34 AM CST	Winter Weather Advisory	LOT	DuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and 2 more	38 hr
Mar 13, 3:09 PM CDT	Winter Weather Advisory	DVN	Hancock, McDonough	21 hr
Apr 15, 5:22 AM CDT	Winter Weather Advisory	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more	5 hr
Apr 16, 2:12 AM CDT	Winter Weather Advisory	DVN	Carroll, Rock Island, Whiteside	29 hr
Apr 16, 3:28 AM CDT	Winter Weather Advisory	LOT	Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more	32 hr
Apr 16, 3:31 AM CDT	Winter Weather Advisory	ILX	Fulton, McLean, Tazewell	30 hr
Nov 23, 2:04 PM CST	Winter Weather Advisory	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	19 hr
Nov 23, 2:24 PM CST	Winter Weather Advisory	LOT	Boone, DeKalb, Kane, Lee, McHenry, Ogle and 1 more	19 hr
Dec 11, 2:08 AM CST	Winter Weather Advisory	DVN	Jo Daviess, Stephenson	36 hr
Dec 11, 8:39 PM CST	Winter Weather Advisory	LOT	Boone, Winnebago	17 hr
Dec 28, 3:02 PM CST	Winter Weather Advisory	ILX	Cass, Fulton, Knox, Marshall, Mason, Morgan and 6 more	37 hr
Dec 28, 3:04 PM CST	Winter Weather Advisory	LOT	Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 7 more	39 hr
Dec 28, 3:15 PM CST	Winter Weather Advisory	DVN	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 2 more	38 hr
Dec 28, 7:31 PM CST	Winter Weather Advisory	LSX	Adams, Brown, Greene, Pike	25 hr

By county

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

59 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 2019 2021

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.