Alert archive / Illinois / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 92, NWS Chicago, IL

July 6, 2019LaSalle County, Illinois

NWS Chicago, IL issued this severe thunderstorm warning at Jul 6, 2019, 2:59 PM CDT for LaSalle County, 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: Jul 6, 2019, 2:59 PM CDT (19:59 UTC)
Expired: Jul 6, 2019, 4:00 PM CDT
In force: 61 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County LaSalle County, IL

The radar

The Chicago radar (KLOT), 73 km from the middle of the area, began a volume at 20:00 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.

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 Jul 6, 1:59 PM CDT, 1 hour earlier.

Area forecast discussion, Jul 6, 1:59 PM CDT, 1 hour before

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Hazardous weather outlook, Jul 6, 12:30 PM CDT, 2 hours 29 minutes before

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    <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.
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      <p id="message2">
        Please try again in a few minutes.
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In the hours before

Special weather statement, Jul 6, 1:54 PM CDT, 1 hour 5 minutes before

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<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.
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Local storm report, Jul 6, 2:38 PM CDT, 21 minutes before

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<body>
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    <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>
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Local storm report, Jul 6, 2:41 PM CDT, 18 minutes before

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<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>
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Local storm report, Jul 6, 2:42 PM CDT, 17 minutes before

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</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>
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Special weather statement, Jul 6, 2:49 PM CDT, 10 minutes before

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<head>
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  <title>Service Notice</title>
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</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>

Local storm report, Jul 6, 2:54 PM CDT, 5 minutes before

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<head>
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  <title>Service Notice</title>
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</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
Jul 5, 7:54 PM CDT	Special Weather Statement	LOT	Winnebago	51 min
Jul 6, 3:16 AM CDT	Beach Hazards Statement	LOT	Lake	48 hr
Jul 6, 3:16 AM CDT	Lakeshore Flood Advisory	LOT	Lake	38 hr
Jul 6, 3:32 AM CDT	Small Craft Advisory	LOT		47 hr
Jul 6, 12:57 PM CDT	Special Weather Statement	LOT	Will	33 min
Jul 6, 1:27 PM CDT	Special Weather Statement	LOT	Will	33 min
Jul 6, 1:45 PM CDT	Special Weather Statement	LOT	Lee	45 min
Jul 6, 2:49 PM CDT	Special Weather Statement	LOT	LaSalle	41 min
Jul 6, 3:47 PM CDT	Special Weather Statement	LOT	LaSalle	28 min
Jul 6, 4:42 PM CDT	Special Weather Statement	LOT	Livingston	33 min
Jul 6, 4:52 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	38 min
Jul 6, 5:16 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	30 min
Jul 6, 1:54 PM CDT	Special Weather Statement	LOT	Lake	36 min
Jul 6, 2:04 PM CDT	Severe Thunderstorm Warning	LOT	Jasper, Lake, Newton	41 min
Jul 6, 3:03 PM CDT	Special Weather Statement	LOT	Benton, Jasper, Newton	42 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2019 Every severe thunderstorm warning in 2019

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.