Alert archive / Iowa / River Flood Warnings in 2024

River Flood Warning 4, NWS Des Moines, IA

May 7, 2024Polk County, Iowa

NWS Des Moines, IA issued this river flood warning at May 7, 2024, 7:37 AM CDT for Polk County, Iowa. It took effect at May 7, 2024, 7:00 PM CDT. It was in force for 48 hr.

The area

The counties it named.

The facts

Issued: May 7, 2024, 7:37 AM CDT (12:37 UTC)
In effect from: May 7, 2024, 7:00 PM CDT
Expired: May 9, 2024, 7:00 PM CDT
In force: 48 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: Minor

County Polk County, IA

The radar

The Des Moines radar (KDMX), 13 km from the middle of the area, began a volume at 12:37 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 river

Written for the forecast point Des Moines River at Des Moines SE 6th St (DESI4).

Action stage: 20 ft
Minor stage: 24 ft
Moderate stage: 26 ft
Major stage: 30 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05485500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at May 7, 6:26 AM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, May 7, 6:26 AM CDT, 1 hour 11 minutes before

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Hazardous weather outlook, May 7, 3:12 AM CDT, 4 hours 25 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>
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In the hours before

Local storm report, May 7, 1:38 AM CDT, 5 hours 59 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>
  <script src="index.js"></script>
</body>
</html>

Local storm report, May 7, 2:31 AM CDT, 5 hours 6 minutes before

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<html lang="en">
<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, May 7, 2:33 AM CDT, 5 hours 4 minutes before

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<html lang="en">
<head>
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  <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 7, 2:40 AM CDT, 4 hours 57 minutes before

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<html lang="en">
<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, May 7, 2:43 AM CDT, 4 hours 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 7, 7:25 AM CDT, 12 minutes before

<!doctype html>
<html lang="en">
<head>
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  <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 Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 9:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Adams, Audubon, Cass, Guthrie, Taylor	48 min
May 6, 9:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Calhoun, Carroll, Crawford, Greene, Sac	40 min
May 6, 9:45 PM CDT	Tornado Warning	DMX	Carroll, Crawford	45 min
May 6, 10:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Adair, Adams, Audubon, Cass, Dallas, Guthrie and 2 more	51 min
May 6, 10:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	Calhoun, Carroll, Crawford, Greene, Humboldt, Pocahontas and 2 more	61 min
May 6, 10:26 PM CDT	Tornado Warning	DMX	Calhoun, Carroll, Greene, Webster	49 min
May 6, 10:50 PM CDT	Special Weather Statement	DMX	Boone, Dallas, Madison, Union	40 min
May 7, 12:33 AM CDT	Severe Thunderstorm Warning	DMX	Clarke, Decatur, Lucas, Madison, Warren, Wayne	42 min
May 7, 12:47 AM CDT	Tornado Warning	DMX	Clarke, Decatur, Lucas, Warren	43 min
May 7, 1:21 AM CDT	Tornado Warning	DMX	Jasper, Mahaska, Marion, Polk, Warren	39 min
May 7, 1:26 AM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Davis, Jasper, Lucas, Mahaska, Marion and 6 more	64 min
May 7, 2:26 AM CDT	Severe Thunderstorm Warning	DMX	Davis, Grundy, Jasper, Mahaska, Marshall, Monroe and 3 more	49 min
May 7, 7:37 AM CDT	River Flood Warning	DMX	Polk	32 hr
May 7, 6:33 PM CDT	Severe Thunderstorm Warning	DMX	Dallas, Polk, Story	27 min
May 7, 6:45 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Audubon, Cass, Guthrie	30 min

Nearby

River Flood Warnings in Iowa, 2024 Every river flood warning in 2024

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; the gauge from the NWS water service and the USGS.