Alert archive / Iowa / River Flood Warnings in 2019

River Flood Warning 45, NWS Des Moines, IA

May 21, 2019Davis County, Wapello County, Iowa

NWS Des Moines, IA issued this river flood warning at May 21, 2019, 8:24 PM CDT for Davis County, Wapello County, Iowa. It took effect at May 22, 2019, 5:26 AM CDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: May 21, 2019, 8:24 PM CDT (01:24 UTC)
In effect from: May 22, 2019, 5:26 AM CDT
Expired: May 22, 2019, 9:19 PM CDT
In force: 16 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: Minor

Counties Davis County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 144 km from the middle of the area, began a volume at 01:24 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 Ottumwa (OTMI4).

Action stage: 9 ft
Minor stage: 13 ft
Moderate stage: 15 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05489500, 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 21, 7:06 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, May 21, 7:06 PM CDT, 1 hour 18 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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      <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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Hazardous weather outlook, May 21, 4:00 PM CDT, 4 hours 24 minutes before

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<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>
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In the hours before

Local storm report, May 21, 2:46 PM CDT, 5 hours 38 minutes before

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<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 21, 7:33 PM CDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
733 PM CDT TUE MAY 21 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0652 PM     NON-TSTM WND DMG 3 NE YALE               41.80N 94.31W
05/21/2019                   GUTHRIE            IA   PUBLIC

            WIND GUST LIKELY UP TO 50 MPH CAUSED VINYL
            SIDING TO BREAK AWAY FROM A HOUSE.

&&

AK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 12:16 AM CDT	Special Weather Statement	DMX	Cass	29 min
May 22, 12:38 AM CDT	Special Weather Statement	DMX	Adair, Adams	52 min
May 22, 12:42 AM CDT	Severe Thunderstorm Warning	DMX	Adair, Adams, Cass	48 min
May 22, 1:29 AM CDT	Special Weather Statement	DMX	Guthrie	46 min
May 22, 1:40 AM CDT	Special Weather Statement	DMX	Humboldt, Webster	65 min
May 22, 1:52 AM CDT	Severe Thunderstorm Warning	DMX	Humboldt, Webster, Wright	38 min

Nearby

River Flood Warnings in Iowa, 2019 Every river flood 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; the gauge from the NWS water service and the USGS.