Alert archive / Iowa / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 158, NWS Des Moines, IA

July 17, 20234 counties in Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jul 17, 2023, 6:53 AM CDT for 4 counties in Iowa. It was in force for 52 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 17, 2023, 6:53 AM CDT (11:53 UTC)
Expired: Jul 17, 2023, 7:45 AM CDT
In force: 52 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Mahaska County, IA, Marion County, IA, Monroe County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 101 km from the middle of the area, began a volume at 11:56 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 Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 6:35 AM CDT, 18 minutes earlier.

Area forecast discussion, Jul 17, 6:35 AM CDT, 18 minutes before

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Hazardous weather outlook, Jul 17, 4:07 AM CDT, 2 hours 46 minutes before

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In the hours before

Special weather statement, Jul 17, 4:24 AM CDT, 2 hours 29 minutes before

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      <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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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, Jul 17, 4:46 AM CDT, 2 hours 7 minutes before

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      <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.
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      <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 17, 5:10 AM CDT, 1 hour 43 minutes before

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      <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.
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      <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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Special weather statement, Jul 17, 6:02 AM CDT, 51 minutes before

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<body>
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      <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 17, 6:03 AM CDT, 50 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 17, 6:39 AM CDT, 14 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>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 1:09 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	51 min
Jul 17, 1:24 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Guthrie, Madison	51 min
Jul 17, 2:01 AM CDT	Special Weather Statement	DMX	Warren	29 min
Jul 17, 2:07 AM CDT	Special Weather Statement	DMX	Cass	23 min
Jul 17, 2:15 AM CDT	Special Weather Statement	DMX	Adair	30 min
Jul 17, 3:04 AM CDT	Special Weather Statement	DMX	Adair	26 min
Jul 17, 4:20 AM CDT	Special Weather Statement	DMX	Carroll	25 min
Jul 17, 4:24 AM CDT	Special Weather Statement	DMX	Adair	36 min
Jul 17, 4:58 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Guthrie	32 min
Jul 17, 5:21 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Audubon, Cass, Guthrie	39 min
Jul 17, 5:32 AM CDT	Severe Thunderstorm Warning	DMX	Audubon, Cass	28 min
Jul 17, 5:52 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Union	23 min
Jul 17, 6:14 AM CDT	Severe Thunderstorm Warning	DMX	Adams, Ringgold, Taylor, Union	31 min
Jul 17, 6:39 AM CDT	Special Weather Statement	DMX	Marion	36 min
Jul 17, 7:44 AM CDT	Severe Thunderstorm Warning	DMX	Mahaska, Marion, Monroe, Wapello	46 min
Jul 17, 8:24 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Cass	51 min
Jul 17, 8:26 AM CDT	Severe Thunderstorm Warning	DMX	Mahaska	34 min
Jul 17, 8:59 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Madison, Union	46 min
Jul 17, 10:05 AM CDT	Special Weather Statement	DMX	Lucas	25 min
Jul 17, 10:34 AM CDT	Special Weather Statement	DMX	Monroe	26 min
Jul 17, 10:56 AM CDT	Special Weather Statement	DMX	Union	34 min
Jul 17, 11:24 AM CDT	Special Weather Statement	DMX	Wapello	21 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2023 Every severe thunderstorm warning in 2023

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.