Alert archive / Nebraska / River Flood Warnings in 2018

River Flood Warning 9, NWS Omaha, NE

June 20, 2018Washington County, Nebraska; Harrison County, Iowa

NWS Omaha, NE issued this river flood warning at Jun 20, 2018, 9:58 PM CDT for Washington County, Nebraska; Harrison County, Iowa. It took effect at Jun 26, 2018, 3:24 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: Jun 20, 2018, 9:58 PM CDT (02:58 UTC)
In effect from: Jun 26, 2018, 3:24 PM CDT
Expired: Jun 21, 2018, 9:49 AM CDT
In force
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Flood severity: Minor

Counties Harrison County, IA, Washington County, NE

The radar

The Omaha radar (KOAX), 43 km from the middle of the area, began a volume at 03:00 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 Missouri River near Blair (BLAN1).

Action stage: 23.5 ft
Minor stage: 26.5 ft
Moderate stage: 28.5 ft
Major stage: 33 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06609100, 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 Omaha, NE wrote its last area forecast discussion before this river flood warning went out at Jun 20, 3:02 PM CDT, 6 hours 56 minutes earlier.

Area forecast discussion, Jun 20, 3:02 PM CDT, 6 hours 56 minutes before

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Hazardous weather outlook, Jun 20, 3:55 PM CDT, 6 hours 3 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>
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In the hours before

Local storm report, Jun 20, 5:20 PM CDT, 4 hours 38 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 Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 4:57 AM CDT	River Flood Warning	OAX	Douglas, Sarpy	2 min

Nearby

River Flood Warnings in Nebraska, 2018 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.