Alert archive / Illinois / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 67, NWS Chicago, IL

June 21, 2014Iroquois County, Illinois

NWS Chicago, IL issued this severe thunderstorm warning at Jun 21, 2014, 4:09 PM CDT for Iroquois County, Illinois. It was in force for 49 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: Jun 21, 2014, 4:09 PM CDT (21:09 UTC)
Expired: Jun 21, 2014, 4:58 PM CDT
In force: 49 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Iroquois County, IL

The radar

The Chicago radar (KLOT), 98 km from the middle of the area, began a volume at 21:13 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 21, 1:33 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

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 Jun 20, 5:14 PM CDT, 22 hours 55 minutes earlier.

Area forecast discussion, Jun 20, 5:14 PM CDT, 22 hours 55 minutes before

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Hazardous weather outlook, Jun 20, 4:11 PM CDT, 23 hours 58 minutes before

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</head>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:22 PM CDT	Dense Fog Advisory	LOT	Lake	14 hr
Jun 20, 9:01 PM CDT	River Flood Advisory	LOT	LaSalle	48 hr
Jun 20, 9:01 PM CDT	River Flood Advisory	LOT	Bureau, LaSalle	58 hr
Jun 21, 12:39 PM CDT	Special Weather Statement	LOT	Kendall	36 min
Jun 21, 1:11 PM CDT	Special Weather Statement	LOT	Will	34 min
Jun 21, 1:16 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Grundy, Kankakee, Will	44 min
Jun 21, 2:42 PM CDT	Severe Thunderstorm Warning	LOT	Grundy, Iroquois, Kankakee, Livingston, Will	48 min
Jun 21, 3:28 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois, Kankakee, Livingston	62 min
Jun 21, 3:35 PM CDT	Special Weather Statement	LOT	Winnebago	40 min
Jun 21, 3:41 PM CDT	Areal Flood Advisory	LOT	Grundy, Iroquois, Kankakee, LaSalle, Livingston	6 hr
Jun 21, 4:01 PM CDT	Special Weather Statement	LOT	Lee	44 min
Jun 21, 4:17 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Lake, McHenry	58 min
Jun 21, 4:23 PM CDT	Tornado Warning	LOT	Lake, McHenry	34 min
Jun 21, 4:40 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle, Lee	52 min
Jun 21, 4:41 PM CDT	Special Marine Warning	LOT		2 hr
Jun 21, 4:46 PM CDT	Severe Thunderstorm Warning	LOT	Iroquois	47 min
Jun 21, 4:51 PM CDT	Tornado Warning	LOT	Iroquois	39 min
Jun 21, 5:07 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Kane, Lake	53 min
Jun 21, 5:11 PM CDT	Areal Flood Advisory	LOT	Cook, DeKalb, DuPage, Kane, Lake, Lee and 2 more	6 hr
Jun 21, 5:36 PM CDT	Flash Flood Warning	LOT	Cook, DuPage	6 hr
Jun 21, 5:37 PM CDT	Special Marine Warning	LOT		83 min
Jun 21, 5:42 PM CDT	Areal Flood Advisory	LOT	Iroquois	6 hr
Jun 21, 5:44 PM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Grundy, Kane, Kendall, Will	61 min
Jun 21, 5:56 PM CDT	Areal Flood Advisory	LOT	DeKalb, Grundy, Kane, Kendall, Will	6 hr
Jun 21, 6:32 PM CDT	Severe Thunderstorm Warning	LOT	Cook, Kankakee, Will	58 min
Jun 21, 6:36 PM CDT	Flash Flood Warning	LOT	Lake	6 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2014 Every severe thunderstorm warning in 2014

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.