Alert archive / Illinois / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 36, NWS Quad Cities, IA

May 17, 2019Henderson County, Mercer County, Warren County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at May 17, 2019, 8:12 AM CDT for Henderson County, Mercer County, Warren County, Illinois. It was in force for 48 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: May 17, 2019, 8:12 AM CDT (13:12 UTC)
Expired: May 17, 2019, 9:00 AM CDT
In force: 48 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Henderson County, IL, Mercer County, IL, Warren County, IL

The radar

The Quad Cities radar (KDVN), 74 km from the middle of the area, began a volume at 13:15 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 Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 6:49 AM CDT, 1 hour 23 minutes earlier.

Area forecast discussion, May 17, 6:49 AM CDT, 1 hour 23 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, May 17, 4:21 AM CDT, 3 hours 51 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>

In the hours before

Special weather statement, May 17, 7:12 AM CDT, 1 hour 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>

Local storm report, May 17, 7:18 AM CDT, 54 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>

Local storm report, May 17, 7:25 AM CDT, 47 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>

Local storm report, May 17, 7:27 AM CDT, 45 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>

Special weather statement, May 17, 7:27 AM CDT, 45 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>

Special weather statement, May 17, 7:56 AM CDT, 16 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 Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 16, 7:15 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	45 min
May 16, 8:00 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	60 min
May 16, 8:27 PM CDT	Severe Thunderstorm Warning	DVN	Iowa	63 min
May 16, 8:48 PM CDT	Severe Thunderstorm Warning	DVN	Clinton	57 min
May 16, 8:57 PM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa, Johnson, Linn	48 min
May 16, 9:03 PM CDT	Flash Flood Warning	DVN	Iowa	5 hr
May 16, 9:06 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Iowa, Johnson, Muscatine, Washington	39 min
May 16, 9:23 PM CDT	Severe Thunderstorm Warning	DVN	Scott	52 min
May 16, 9:44 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Louisa, Muscatine, Scott, Washington	46 min
May 16, 9:55 PM CDT	Flash Flood Warning	DVN	Cedar, Johnson, Muscatine, Washington	4 hr
May 16, 10:04 PM CDT	Special Weather Statement	DVN	Louisa, Washington	41 min
May 16, 10:10 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine, Scott	50 min
May 16, 10:35 PM CDT	Special Weather Statement	DVN	Des Moines, Henry	25 min
May 16, 11:06 PM CDT	Special Weather Statement	DVN	Iowa	39 min
May 16, 11:27 PM CDT	Special Weather Statement	DVN	Jefferson	48 min
May 17, 5:31 AM CDT	Special Weather Statement	DVN	Jefferson, Keokuk, Washington	44 min
May 17, 6:08 AM CDT	Special Weather Statement	DVN	Keokuk, Washington	52 min
May 17, 6:41 AM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Louisa, Washington	49 min
May 17, 7:12 AM CDT	Special Weather Statement	DVN	Des Moines, Henry	48 min
May 17, 7:27 AM CDT	Special Weather Statement	DVN	Louisa	33 min
May 17, 7:56 AM CDT	Special Weather Statement	DVN	Des Moines	64 min
May 17, 8:28 AM CDT	River Flood Warning	DVN	Benton, Iowa	21 days
May 17, 8:38 AM CDT	River Flood Warning	DVN	Keokuk	16 days
May 17, 11:00 AM CDT	River Flood Warning	DVN	Scott	4 days
May 16, 7:34 PM CDT	Severe Thunderstorm Warning	DVN	Rock Island, Whiteside	41 min
May 16, 8:27 PM CDT	Special Weather Statement	DVN	Whiteside	48 min
May 16, 9:10 PM CDT	Severe Thunderstorm Warning	DVN	Whiteside	50 min
May 16, 9:54 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Whiteside	51 min
May 16, 10:47 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Henry, Mercer	58 min
May 16, 10:52 PM CDT	Severe Thunderstorm Warning	DVN	Bureau	23 min
May 17, 8:41 AM CDT	Special Weather Statement	DVN	Henry	34 min
May 17, 9:35 AM CDT	River Flood Warning	DVN	Henry, Rock Island, Whiteside	3 days
May 17, 9:58 AM CDT	Special Weather Statement	DVN	Bureau, Putnam	47 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.