Alert archive / Indiana / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 12, NWS Chicago, IL

April 18, 2013Iroquois County, Kankakee County, Illinois; 5 counties in Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Apr 18, 2013, 8:09 AM CDT for Iroquois County, Kankakee County, Illinois; 5 counties in Indiana. It was in force for 96 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 18, 2013, 8:09 AM CDT (13:09 UTC)
Expired: Apr 18, 2013, 9:45 AM CDT
In force: 96 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Iroquois County, IL, Kankakee County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN

The radar

The Chicago radar (KLOT), 82 km from the middle of the area, began a volume at 13:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 18, 7:23 AM CDT, 46 minutes earlier.

Area forecast discussion, Apr 18, 7:23 AM CDT, 46 minutes before

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Hazardous weather outlook, Apr 18, 5:03 AM CDT, 3 hours 6 minutes before

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In the hours before

Local storm report, Apr 18, 7:39 AM CDT, 30 minutes before

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Local storm report, Apr 18, 7:43 AM CDT, 26 minutes before

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Local storm report, Apr 18, 7:51 AM CDT, 18 minutes before

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Local storm report, Apr 18, 7:59 AM CDT, 10 minutes before

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Local storm report, Apr 18, 8:03 AM CDT, 6 minutes before

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Local storm report, Apr 18, 8:06 AM CDT, 3 minutes before

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The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 17, 7:31 PM CDT	Special Weather Statement	LOT	Iroquois	29 min
Apr 17, 7:44 PM CDT	Flash Flood Warning	LOT	Grundy, LaSalle, Livingston	8 hr
Apr 17, 8:29 PM CDT	River Flood Warning	LOT	Boone	3 days
Apr 17, 8:31 PM CDT	River Flood Watch	LOT	DeKalb	8 hr
Apr 17, 9:03 PM CDT	River Flood Warning	LOT	Kankakee	62 hr
Apr 17, 9:03 PM CDT	River Flood Warning	LOT	Grundy, Will	56 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Iroquois	23 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Iroquois, Kankakee	33 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Iroquois	23 hr
Apr 17, 9:15 PM CDT	Small Craft Advisory	LOT		10 hr
Apr 17, 9:20 PM CDT	River Flood Warning	LOT	Will	4 days
Apr 17, 9:20 PM CDT	River Flood Warning	LOT	DuPage	3 days
Apr 17, 9:23 PM CDT	River Flood Warning	LOT	LaSalle	3 days
Apr 17, 9:27 PM CDT	River Flood Watch	LOT	Livingston	23 hr
Apr 17, 10:31 PM CDT	River Flood Warning	LOT	Grundy	7 days
Apr 17, 10:31 PM CDT	River Flood Warning	LOT	Grundy	53 hr
Apr 17, 10:31 PM CDT	River Flood Warning	LOT	Cook	39 hr
Apr 18, 2:15 AM CDT	Areal Flood Warning	LOT	Grundy, Kankakee, LaSalle, Livingston, Will	10 hr
Apr 18, 3:19 AM CDT	Gale Watch	LOT		12 hr
Apr 18, 3:19 AM CDT	Gale Warning	LOT		48 hr
Apr 18, 4:01 AM CDT	Wind Advisory	LOT	Ford, Iroquois, Kankakee, Livingston	5 hr
Apr 18, 4:05 AM CDT	Flash Flood Warning Emergency	LOT	Cook, DeKalb, DuPage, Grundy, Kane, Kendall and 3 more	8 hr
Apr 18, 4:34 AM CDT	Special Marine Warning	LOT		116 min
Apr 18, 4:52 AM CDT	River Flood Warning	LOT	DeKalb	33 hr
Apr 18, 5:45 AM CDT	River Flood Warning	LOT	Cook	46 hr
Apr 18, 5:58 AM CDT	Flash Flood Warning	LOT	Cook, Ford, Grundy, Iroquois, Kankakee, LaSalle and 2 more	8 hr
Apr 18, 6:14 AM CDT	Special Weather Statement	LOT	Cook, DuPage, Grundy, Kankakee, Kendall, LaSalle and 2 more	61 min
Apr 18, 6:45 AM CDT	Special Marine Warning	LOT		2 hr
Apr 18, 7:06 AM CDT	Special Weather Statement	LOT	Cook, DuPage, Kankakee, Will	39 min
Apr 18, 7:09 AM CDT	Special Weather Statement	LOT	Cook, DuPage, Kankakee, Will	36 min
Apr 18, 7:18 AM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kankakee, Will	57 min
Apr 18, 7:24 AM CDT	Special Marine Warning	LOT		2 hr
Apr 18, 12:00 PM CDT	Flash Flood Warning	LOT	Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 5 more	8 hr
Apr 18, 1:28 PM CDT	Areal Flood Warning	LOT	Boone, DeKalb, Kane, Lake, Lee, McHenry and 2 more	6 hr
Apr 18, 4:52 PM CDT	Small Craft Advisory	LOT		5 hr
Apr 17, 8:05 PM CDT	River Flood Warning	LOT	Lake	65 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Porter	28 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Jasper, Porter	28 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Jasper	27 hr
Apr 17, 9:14 PM CDT	River Flood Watch	LOT	Newton	24 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2013 Severe Thunderstorm Warnings in Illinois, 2013 Every severe thunderstorm warning in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.