Alert archive / Iowa / River Flood Warnings in 2019

River Flood Warning 96, NWS Quad Cities, IA

May 1, 2019Louisa County, Iowa

NWS Quad Cities, IA issued this river flood warning at May 1, 2019, 9:56 AM CDT for Louisa County, Iowa. It took effect at May 2, 2019, 7:00 AM CDT. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: May 1, 2019, 9:56 AM CDT (14:56 UTC)
In effect from: May 2, 2019, 7:00 AM CDT
Expired: May 3, 2019, 7:00 PM CDT
In force: 36 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: Minor

County Louisa County, IA

The radar

The Quad Cities radar (KDVN), 72 km from the middle of the area, began a volume at 15:00 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.

The river

Written for the forecast point Iowa River at Wapello (WAPI4). The gauge peaked at 20.84 ft at May 2, 2019, 6:00 AM CDT.

Action stage: 18.5 ft
Minor stage: 21 ft
Moderate stage: 25 ft
Major stage: 27.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05465500, 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 Quad Cities, IA wrote its last area forecast discussion before this river flood warning went out at May 1, 8:36 AM CDT, 1 hour 20 minutes earlier.

Area forecast discussion, May 1, 8:36 AM CDT, 1 hour 20 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        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 1, 4:24 AM CDT, 5 hours 32 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>
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In the hours before

Local storm report, May 1, 8:03 AM CDT, 1 hour 53 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 1, 2:27 AM CDT	River Flood Warning	DVN	Cedar, Louisa, Muscatine	21 hr
May 1, 2:11 PM CDT	Flash Flood Watch	DVN	Des Moines, Henry, Lee, Louisa, Muscatine, Scott and 1 more	19 hr
May 1, 1:10 AM CDT	Special Weather Statement	DVN	Hancock, McDonough, Warren	2 hr
May 1, 2:45 AM CDT	Special Weather Statement	DVN	Putnam	2 hr
May 1, 8:09 AM CDT	River Flood Warning	DVN	Clark	30 hr

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.