Alert archive / Illinois / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 88, NWS Chicago, IL

June 12, 20087 counties in Illinois

NWS Chicago, IL issued this severe thunderstorm warning at Jun 12, 2008, 11:59 PM CDT for 7 counties in Illinois. It was in force for 61 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 12, 2008, 11:59 PM CDT (04:59 UTC)
Expired: Jun 13, 2008, 1:00 AM CDT
In force: 61 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon

Counties Boone County, IL, DeKalb County, IL, Grundy County, IL, Kane County, IL, Kendall County, IL, LaSalle County, IL, McHenry County, IL

The radar

The Chicago radar (KLOT), 49 km from the middle of the area, began a volume at 05:00 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 12, 7:48 PM CDT	Tornado Watch	SPC	6 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 12, 6:38 PM CDT, 5 hours 21 minutes earlier.

Area forecast discussion, Jun 12, 6:38 PM CDT, 5 hours 21 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jun 12, 5:28 PM CDT, 6 hours 31 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 11:07 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle	38 min
Jun 12, 11:37 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle, Lee, Ogle	53 min
Jun 12, 11:47 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle, Winnebago	43 min
Jun 13, 12:06 AM CDT	Special Marine Warning	LOT		114 min
Jun 13, 12:27 AM CDT	Tornado Warning	LOT	Boone, McHenry	48 min
Jun 13, 12:31 AM CDT	Severe Thunderstorm Warning	LOT	Cook, DuPage, Lake, Will	59 min
Jun 13, 1:55 AM CDT	Special Marine Warning	LOT		62 min
Jun 13, 3:37 AM CDT	Special Marine Warning	LOT		83 min
Jun 13, 1:15 PM CDT	Flash Flood Warning	LOT	Benton	4 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2008 Every severe thunderstorm warning in 2008

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.