Alert archive / Illinois / Tornado Warnings / 2015

Tornado Warnings in Illinois, April 2015

20 tornado warnings in April 2015. 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 tornado warnings reaches back to 1986.

Tornado Warnings by county

Each county as a circle sized by its count in April 2015. Tap one for its archive.

Tornado Warnings: 20
Busiest day: April 10, 201512 tornado 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
Apr 9, 1:37 PM CDT	Tornado Warning	ILX	Marshall, Peoria, Woodford	38 min
Apr 9, 5:49 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	DVN	Carroll, Whiteside	26 min
Apr 9, 6:09 PM CDT	Tornado Warning	LOT	Boone, DeKalb, Ogle, Winnebago	36 min
Apr 9, 6:10 PM CDT	Tornado Warning	DVN	Carroll	20 min
Apr 9, 6:35 PM CDT	Tornado Warning	LOT	Lee, Ogle	25 min
Apr 9, 6:37 PM CDT	Tornado Warning	LOT	Boone, Winnebago	23 min
Apr 9, 6:56 PM CDT	Tornado Warning	LOT	Boone, McHenry	34 min
Apr 9, 6:58 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	LOT	Boone, DeKalb, Ogle, Winnebago	47 min
Apr 9, 7:04 PM CDT	Tornado Warning	LSX	Macoupin, Montgomery	26 min
Apr 9, 7:05 PM CDT	Tornado Warning	LOT	Boone, Ogle, Winnebago	40 min
Apr 9, 7:16 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	LOT	Boone, DeKalb, McHenry	29 min
Apr 9, 7:19 PM CDT	Tornado Warning	LOT	McHenry	26 min
Apr 9, 7:24 PM CDT	Tornado Warning	ILX	Christian, Sangamon	21 min
Apr 9, 7:26 PM CDT	Tornado Warning	LSX	Macoupin, Montgomery	34 min
Apr 9, 7:32 PM CDT	Tornado Warning	ILX	Marshall, Peoria, Woodford	28 min
Apr 9, 7:41 PM CDT	Tornado Warning	ILX	Christian, Macon	34 min
Apr 9, 7:41 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	LOT	McHenry	49 min
Apr 9, 7:51 PM CDT	Tornado Warning	LOT	LaSalle	39 min
Apr 9, 8:13 PM CDT	Tornado Warning	ILX	Christian, Macon, Moultrie, Shelby	32 min
Apr 9, 8:23 PM CDT	Tornado Warning	LSX	Fayette	14 min

By county

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

Nearby

Alerts in force now Tornadoes on record The radar archive 2014 2016

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.