Alert archive / Illinois / Severe Thunderstorm Warnings / 2020

Severe Thunderstorm Warnings in Illinois, May 2020

72 severe thunderstorm warnings in May 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 severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in May 2020. Tap one for its archive.

Severe Thunderstorm Warnings: 72
Busiest day: May 23, 202023 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 2, 9:38 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Sangamon, Shelby	37 min
May 2, 10:07 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Macon, Moultrie, Shelby	38 min
May 2, 10:43 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Effingham, Shelby	47 min
May 2, 11:12 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Effingham, Jasper, Shelby	31 min
May 2, 11:24 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Edgar	51 min
May 3, 2:08 PM CDT	Severe Thunderstorm Warning	PAH	Alexander	52 min
May 14, 8:36 PM CDT	Severe Thunderstorm Warning	DVN	Mercer, Rock Island	39 min
May 14, 8:59 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson, McDonough, Warren	31 min
May 14, 9:12 PM CDT	Severe Thunderstorm Warning	DVN	Mercer, Rock Island	33 min
May 14, 9:27 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson	33 min
May 14, 9:57 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Warren	48 min
May 14, 10:17 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee	43 min
May 14, 10:20 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Whiteside	25 min
May 14, 10:20 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Knox, Peoria, Stark	55 min
May 14, 10:26 PM CDT	Severe Thunderstorm Warning	LOT	Lee	49 min
May 14, 10:38 PM CDT	Severe Thunderstorm Warning	DVN	Bureau	52 min
May 14, 10:39 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Stark	35 min
May 14, 10:57 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, LaSalle, Lee	48 min
May 14, 11:40 PM CDT	Severe Thunderstorm Warning	LOT	DeKalb, Kane, Kendall, LaSalle	50 min
May 15, 12:19 AM CDT	Severe Thunderstorm Warning	LOT	DuPage, Kane, Kendall, Will	41 min
May 16, 2:20 PM CDT	Severe Thunderstorm Warning	LSX	Greene	40 min
May 16, 3:50 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin	40 min
May 17, 4:30 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Wayne, White	34 min
May 17, 5:14 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Lawrence	46 min
May 17, 6:11 PM CDT	Severe Thunderstorm Warning	ILX	Lawrence	19 min
May 17, 6:21 PM CDT	Severe Thunderstorm Warning	ILX	Crawford, Lawrence	16 min
May 23, 10:28 AM CDT	Severe Thunderstorm Warning	DVN	Henry, Mercer, Rock Island	25 min
May 23, 12:13 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	62 min
May 23, 12:53 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell, Woodford	52 min
May 23, 1:18 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	27 min
May 23, 1:29 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell, Woodford	46 min
May 23, 1:33 PM CDT	Severe Thunderstorm Warning	LOT	Ogle	42 min
May 23, 1:50 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	55 min
May 23, 2:07 PM CDT	Severe Thunderstorm Warning	LOT	Ogle	23 min
May 23, 2:08 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, LaSalle	67 min
May 23, 2:26 PM CDT	Severe Thunderstorm Warning	LOT	Ogle, Winnebago	64 min
May 23, 2:39 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Kendall, Will	51 min
May 23, 2:44 PM CDT	Severe Thunderstorm Warning	LOT	Ogle	46 min
May 23, 3:09 PM CDT	Severe Thunderstorm Warning	LOT	Boone, Winnebago	66 min
May 23, 3:27 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee, Livingston	48 min
May 23, 3:48 PM CDT	Severe Thunderstorm Warning	LOT	Will	42 min
May 23, 3:55 PM CDT	Severe Thunderstorm Warning	LOT	Cook	50 min
May 23, 4:02 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson	58 min
May 23, 4:09 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Kankakee	36 min
May 23, 4:13 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois	62 min
May 23, 4:16 PM CDT	Severe Thunderstorm Warning	LOT	Kankakee	44 min
May 23, 6:04 PM CDT	Severe Thunderstorm Warning	LOT	Boone, DeKalb, Kane, McHenry	56 min
May 23, 6:42 PM CDT	Severe Thunderstorm Warning	LOT	Will	48 min
May 23, 6:57 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Kane, Lake, McHenry	79 min
May 24, 5:44 PM CDT	Severe Thunderstorm Warning	LSX	Adams	46 min
May 24, 5:49 PM CDT	Severe Thunderstorm Warning	DVN	Hancock	30 min
May 24, 6:53 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Union	22 min
May 24, 6:55 PM CDT	Severe Thunderstorm Warning	LSX	Pike	22 min
May 24, 8:45 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	20 min
May 25, 2:30 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	30 min
May 25, 2:42 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jefferson	16 min
May 25, 3:47 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Williamson	28 min
May 25, 4:29 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jefferson, Perry	31 min
May 25, 6:33 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Union	19 min
May 25, 7:54 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Tazewell, Woodford	66 min
May 25, 8:04 PM CDT	Severe Thunderstorm Warning	PAH	Perry	11 min
May 25, 8:35 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Tazewell, Woodford	55 min
May 25, 8:59 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Woodford	46 min
May 25, 10:10 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, DeWitt, McLean, Piatt	50 min
May 26, 5:39 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	36 min
May 26, 6:03 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson	27 min
May 26, 6:27 PM CDT	Severe Thunderstorm Warning	DVN	Stephenson	33 min
May 26, 6:41 PM CDT	Severe Thunderstorm Warning	DVN	Stephenson	19 min
May 26, 6:42 PM CDT	Severe Thunderstorm Warning	DVN	Stephenson	18 min
May 28, 4:22 PM CDT	Severe Thunderstorm Warning	LSX	Madison	23 min
May 28, 5:50 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin, Montgomery	25 min
May 28, 8:54 PM CDT	Severe Thunderstorm Warning	LSX	Marion	36 min

By county

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

33 more counties

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. Rebuilt daily.