Alert archive / Illinois / Severe Thunderstorm Warnings / 2011

Severe Thunderstorm Warnings in Illinois, May 2011

201 severe thunderstorm warnings in May 2011. 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 severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in May 2011. Tap one for its archive.

Severe Thunderstorm Warnings: 201
Busiest day: May 25, 201143 severe thunderstorm warnings

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
May 7, 3:28 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	32 min
May 7, 3:49 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	41 min
May 7, 4:32 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	58 min
May 7, 4:59 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	46 min
May 7, 5:25 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	50 min
May 7, 5:33 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee	33 min
May 7, 5:39 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	51 min
May 10, 11:30 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Jasper	18 min
May 10, 11:59 AM CDT	Severe Thunderstorm Warning	ILX	Clark, Cumberland	27 min
May 10, 12:25 PM CDT	Severe Thunderstorm Warning	LSX	Madison	35 min
May 11, 1:57 PM CDT	Severe Thunderstorm Warning	LSX	Adams	48 min
May 11, 2:06 PM CDT	Severe Thunderstorm Warning	LSX	Pike	24 min
May 11, 2:07 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey	38 min
May 11, 2:28 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	47 min
May 11, 2:31 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	44 min
May 11, 2:42 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	48 min
May 11, 2:51 PM CDT	Severe Thunderstorm Warning	LSX	Pike	39 min
May 11, 3:15 PM CDT	Severe Thunderstorm Warning	LSX	Brown, Pike	45 min
May 11, 3:19 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	56 min
May 11, 3:30 PM CDT	Severe Thunderstorm Warning	LSX	Pike	15 min
May 11, 4:06 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Kane, Lake, McHenry	54 min
May 11, 4:39 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane, Lake	36 min
May 11, 4:48 PM CDT	Severe Thunderstorm Warning	ILX	Logan, McLean, Mason, Menard, Tazewell	57 min
May 11, 4:51 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	54 min
May 11, 5:10 PM CDT	Severe Thunderstorm Warning	LOT	Winnebago	10 min
May 11, 5:11 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Kane, Lake, McHenry	49 min
May 11, 5:33 PM CDT	Severe Thunderstorm Warning	DVN	Putnam	27 min
May 11, 5:38 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	33 min
May 11, 5:43 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, LaSalle, Livingston	62 min
May 11, 5:52 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Lake	27 min
May 11, 6:44 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kankakee, Kendall, Will	46 min
May 11, 7:04 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Will	56 min
May 11, 7:57 PM CDT	Severe Thunderstorm Warning	LOT	Cook	19 min
May 13, 12:35 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, McHenry	55 min
May 13, 1:17 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Lee, Ogle	58 min
May 13, 1:26 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb	24 min
May 13, 1:45 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb	35 min
May 13, 4:23 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	23 min
May 13, 6:12 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	63 min
May 13, 6:40 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Logan, Macon, Sangamon	54 min
May 22, 1:11 PM CDT	Severe Thunderstorm Warning	ILX	Mason, Tazewell	34 min
May 22, 1:25 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Pike	50 min
May 22, 1:35 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason, Menard, Morgan, Sangamon	55 min
May 22, 1:39 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell, Woodford	36 min
May 22, 1:44 PM CDT	Severe Thunderstorm Warning	ILX	Morgan	16 min
May 22, 1:46 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Macoupin	44 min
May 22, 1:52 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	38 min
May 22, 2:08 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell, Woodford	37 min
May 22, 2:16 PM CDT	Severe Thunderstorm Warning	LSX	Greene	29 min
May 22, 2:26 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Livingston	34 min
May 22, 2:29 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard, Sangamon	46 min
May 22, 2:38 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, McLean, Tazewell	52 min
May 22, 2:43 PM CDT	Severe Thunderstorm Warning	ILX	Morgan	32 min
May 22, 2:59 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, Macon, Sangamon	46 min
May 22, 3:00 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Grundy, Iroquois, Kankakee, Livingston	60 min
May 22, 3:06 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	39 min
May 22, 3:08 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee, Will	67 min
May 22, 3:16 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Lake	19 min
May 22, 3:21 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Will	54 min
May 22, 3:23 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage	38 min
May 22, 3:24 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean	66 min
May 22, 3:28 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee, Livingston	77 min
May 22, 3:29 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Piatt	46 min
May 22, 3:43 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	47 min
May 22, 4:12 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	78 min
May 22, 4:14 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Piatt	28 min
May 22, 4:38 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	67 min
May 22, 4:47 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess	58 min
May 22, 4:51 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle	39 min
May 22, 5:13 PM CDT	Severe Thunderstorm Warning	LOT	Boone, Ogle, Winnebago	47 min
May 22, 5:24 PM CDT	Severe Thunderstorm Warning	ILX	Knox	27 min
May 22, 5:28 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson	62 min
May 22, 5:47 PM CDT	Severe Thunderstorm Warning	DVN	Rock Island, Whiteside	31 min
May 22, 5:49 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Whiteside	27 min
May 22, 5:51 PM CDT	Severe Thunderstorm Warning	LOT	Ogle, Winnebago	25 min
May 22, 5:54 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown	51 min
May 22, 6:00 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Mason, Peoria, Tazewell	30 min
May 22, 6:07 PM CDT	Severe Thunderstorm Warning	ILX	Knox	38 min
May 22, 6:12 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	63 min
May 22, 6:18 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, Lee, Ogle, Winnebago	50 min
May 22, 6:30 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell, Woodford	45 min
May 22, 6:43 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	33 min
May 22, 7:03 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria	26 min
May 22, 7:05 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry	55 min
May 22, 7:22 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	53 min
May 22, 7:29 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle, Winnebago	61 min
May 22, 7:42 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Peoria, Stark	33 min
May 22, 7:45 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	45 min
May 22, 7:48 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	57 min
May 22, 8:08 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin	41 min
May 22, 8:10 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	50 min
May 22, 8:15 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, McHenry	60 min
May 22, 8:15 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin, Madison	45 min
May 22, 8:17 PM CDT	Severe Thunderstorm Warning	LOT	Lake, McHenry	58 min
May 22, 8:51 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DeKalb, Kane	26 min
May 22, 8:57 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Rock Island, Whiteside	63 min
May 22, 9:38 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Lee, Ogle	52 min
May 22, 9:50 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle, Lee	37 min
May 22, 11:11 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Johnson, Pulaski, Union	34 min
May 22, 11:15 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Johnson, Union	30 min
May 22, 11:43 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Williamson	32 min
May 23, 12:04 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey, Macoupin, Madison, Saint Clair	41 min
May 23, 12:42 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Jersey, Macoupin, Madison, Montgomery and 1 more	48 min
May 23, 1:21 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Effingham, Moultrie, Shelby	54 min
May 23, 1:26 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	49 min
May 23, 2:09 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Williamson	25 min
May 23, 2:14 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Crawford, Jasper, Lawrence, Richland	61 min
May 23, 2:15 PM CDT	Severe Thunderstorm Warning	LSX	Marion	16 min
May 23, 2:17 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Effingham, Jasper, Shelby	58 min
May 23, 2:42 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Crawford, Edgar	63 min
May 23, 2:51 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	54 min
May 23, 3:10 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	35 min
May 23, 3:15 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	30 min
May 23, 3:46 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Jackson, Union	44 min
May 23, 4:31 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Williamson	29 min
May 23, 4:40 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Pope, Saline, Union, Williamson	40 min
May 23, 4:48 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Massac, Pope, Pulaski, Union	42 min
May 23, 5:02 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hardin, Pope, Saline	43 min
May 24, 2:27 PM CDT	Severe Thunderstorm Warning	DVN	Whiteside	63 min
May 25, 2:00 AM CDT	Severe Thunderstorm Warning	LSX	Adams, Calhoun, Greene, Jersey, Pike	45 min
May 25, 4:15 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Jersey	35 min
May 25, 5:47 AM CDT	Severe Thunderstorm Warning	ILX	Logan, Mason, Menard, Sangamon	58 min
May 25, 8:16 AM CDT	Severe Thunderstorm Warning	ILX	Champaign, Vermilion	44 min
May 25, 8:24 AM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee, Livingston	66 min
May 25, 11:51 AM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash, White	39 min
May 25, 11:59 AM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	61 min
May 25, 12:18 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	42 min
May 25, 12:54 PM CDT	Severe Thunderstorm Warning	ILX	Shelby	66 min
May 25, 12:56 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Fayette, Montgomery	13 min
May 25, 1:44 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas, Moultrie	51 min
May 25, 2:23 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	23 min
May 25, 2:44 PM CDT	Severe Thunderstorm Warning	ILX	Edgar, Vermilion	38 min
May 25, 3:20 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	25 min
May 25, 3:25 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin, Madison, Montgomery	50 min
May 25, 3:53 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin, Montgomery	52 min
May 25, 4:00 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Monroe, Saint Clair	45 min
May 25, 4:02 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Sangamon	58 min
May 25, 4:05 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun	40 min
May 25, 4:24 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin, Madison	38 min
May 25, 4:29 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Morgan, Schuyler	61 min
May 25, 4:33 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon	57 min
May 25, 4:57 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Logan, Menard, Sangamon	51 min
May 25, 5:00 PM CDT	Severe Thunderstorm Warning	ILX	Douglas, Macon, Moultrie, Piatt, Shelby	60 min
May 25, 5:00 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Monroe, Saint Clair	25 min
May 25, 5:05 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Mercer	40 min
May 25, 5:07 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	38 min
May 25, 5:19 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Logan, Mason, Menard, Tazewell	35 min
May 25, 5:23 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	52 min
May 25, 5:24 PM CDT	Severe Thunderstorm Warning	LSX	Washington	51 min
May 25, 5:30 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Henry, Mercer, Warren	45 min
May 25, 5:30 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Madison, Montgomery	45 min
May 25, 5:37 PM CDT	Severe Thunderstorm Warning	ILX	Macon, Piatt, Shelby	38 min
May 25, 5:42 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean, Macon, Piatt	37 min
May 25, 5:45 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, McLean, Peoria, Tazewell, Woodford	60 min
May 25, 5:58 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Piatt	47 min
May 25, 6:02 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	43 min
May 25, 6:11 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Effingham, Jasper	49 min
May 25, 6:15 PM CDT	Severe Thunderstorm Warning	ILX	Knox, McLean, Marshall, Peoria, Stark, Woodford	40 min
May 25, 6:27 PM CDT	Severe Thunderstorm Warning	ILX	Champaign	33 min
May 25, 6:31 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	44 min
May 25, 6:34 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion, Montgomery	26 min
May 25, 6:42 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Coles, Douglas, Moultrie, Piatt	33 min
May 25, 7:01 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	59 min
May 25, 7:28 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Massac, Pope	47 min
May 25, 7:37 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois, Kankakee	53 min
May 25, 7:40 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hamilton, Saline, White	65 min
May 25, 7:50 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	70 min
May 25, 7:50 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wabash	55 min
May 28, 12:40 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Pike	50 min
May 28, 1:14 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey	46 min
May 28, 1:49 PM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin, Montgomery	41 min
May 28, 1:52 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Menard, Morgan, Sangamon	38 min
May 28, 2:10 PM CDT	Severe Thunderstorm Warning	ILX	Christian, DeWitt, Macon, Piatt	35 min
May 28, 2:25 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Warren	35 min
May 28, 2:27 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Logan, Macon, Sangamon	33 min
May 28, 2:28 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Montgomery	47 min
May 28, 2:41 PM CDT	Severe Thunderstorm Warning	ILX	Effingham, Shelby	64 min
May 28, 2:44 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, Douglas, Moultrie, Piatt	46 min
May 28, 2:46 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Macon	44 min
May 28, 2:49 PM CDT	Severe Thunderstorm Warning	ILX	Knox	31 min
May 28, 3:28 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Shelby	47 min
May 28, 3:48 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	35 min
May 28, 4:07 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Edgar	38 min
May 28, 4:21 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	19 min
May 28, 5:12 PM CDT	Severe Thunderstorm Warning	ILX	Vermilion	17 min
May 29, 8:47 AM CDT	Severe Thunderstorm Warning	ILX	Knox	28 min
May 29, 9:55 AM CDT	Severe Thunderstorm Warning	DVN	Hancock	65 min
May 29, 9:58 AM CDT	Severe Thunderstorm Warning	DVN	Henderson, Mercer, Rock Island, Warren	62 min
May 29, 10:14 AM CDT	Severe Thunderstorm Warning	ILX	Knox, Stark	61 min
May 29, 10:15 AM CDT	Severe Thunderstorm Warning	DVN	Henderson, Warren	60 min
May 29, 10:33 AM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Mercer, Rock Island, Whiteside	57 min
May 29, 10:42 AM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria, Stark, Tazewell	33 min
May 29, 10:54 AM CDT	Severe Thunderstorm Warning	DVN	Carroll, Rock Island, Whiteside	66 min
May 29, 11:03 AM CDT	Severe Thunderstorm Warning	DVN	Hancock, McDonough, Warren	34 min
May 29, 11:08 AM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Marshall, Peoria, Stark, Tazewell and 1 more	52 min
May 29, 11:13 AM CDT	Severe Thunderstorm Warning	LOT	DeKalb, LaSalle, Lee, Livingston	62 min
May 29, 11:17 AM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	43 min
May 29, 11:23 AM CDT	Severe Thunderstorm Warning	LOT	Cook, DeKalb, DuPage, Kane, Kendall, Lake and 1 more	67 min
May 29, 11:58 AM CDT	Severe Thunderstorm Warning	LOT	DeKalb, DuPage, Ford, Grundy, Kane, Kankakee and 6 more	77 min
May 29, 12:43 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Ford, Grundy, Iroquois, Kane and 5 more	77 min
May 31, 2:20 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DeKalb, DuPage, Kane, Kendall, Lake and 1 more	55 min

By county

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

59 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2010 2012

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.