Alert archive / Iowa / River Flood Warnings in 2018

River Flood Warning 15, NWS Quad Cities, IA

February 20, 2018Keokuk County, Iowa

NWS Quad Cities, IA issued this river flood warning at Feb 20, 2018, 10:58 PM CST for Keokuk County, Iowa. It took effect at Feb 21, 2018, 12:00 AM CST. It was in force for 41 hr.

The area

The counties it named.

The facts

Issued: Feb 20, 2018, 10:58 PM CST (04:58 UTC)
In effect from: Feb 21, 2018, 12:00 AM CST
Expired: Feb 22, 2018, 5:15 PM CST
In force: 41 hr
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Flood severity: Minor

County Keokuk County, IA

The radar

The Des Moines radar (KDMX), 136 km from the middle of the area, began a volume at 04:55 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 North Skunk River near Sigourney (SIGI4).

Action stage: 14.5 ft
Minor stage: 16 ft
Moderate stage: 18 ft
Major stage: 21 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05472500, 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 Feb 20, 5:40 PM CST, 5 hours 18 minutes earlier.

Area forecast discussion, Feb 20, 5:40 PM CST, 5 hours 18 minutes before

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Hazardous weather outlook, Feb 20, 4:26 PM CST, 6 hours 32 minutes before

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<body>
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    <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.
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In the hours before

Local storm report, Feb 20, 4:59 PM CST, 5 hours 59 minutes before

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<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>
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Local storm report, Feb 20, 9:45 PM CST, 1 hour 13 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
Feb 21, 10:56 AM CST	River Flood Watch	DVN	Des Moines	6 days
Feb 21, 3:47 PM CST	Winter Weather Advisory	DVN	Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more	20 hr
Feb 21, 10:14 AM CST	Areal Flood Warning	DVN	Stephenson	24 hr

Nearby

River Flood Warnings in Iowa, 2018 Every river flood warning in 2018

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.