Alert archive / Nebraska / River Flood Warnings in 2020

River Flood Warning 11, NWS Omaha, NE

June 9, 2020Knox County, Nebraska

NWS Omaha, NE issued this river flood warning at Jun 9, 2020, 10:56 AM CDT for Knox County, Nebraska. It took effect at Jun 9, 2020, 5:42 PM CDT. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued: Jun 9, 2020, 10:56 AM CDT (15:56 UTC)
In effect from: Jun 9, 2020, 5:42 PM CDT
Expired: Jun 10, 2020, 4:55 PM CDT
In force: 23 hr
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Flood severity: Moderate

County Knox County, NE

The radar

The Sioux Falls radar (KFSD), 142 km from the middle of the area, began a volume at 15:57 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 Ponca Creek at Verdel (VERN1). The gauge peaked at 14.91 ft at Jun 10, 2020, 7:00 AM CDT.

Action stage: 12 ft
Minor stage: 13.5 ft
Moderate stage: 15 ft
Major stage: 17 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06453600, 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 9, 6:29 AM CDT, 4 hours 27 minutes earlier.

Area forecast discussion, Jun 9, 6:29 AM CDT, 4 hours 27 minutes before

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Hazardous weather outlook, Jun 9, 4:38 AM CDT, 6 hours 18 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.
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The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 3:22 AM CDT	High Wind Warning	OAX	Boone, Burt, Butler, Cass, Colfax, Cuming and 16 more	25 hr
Jun 9, 3:22 AM CDT	Wind Advisory	OAX	Antelope, Burt, Cass, Cedar, Douglas, Gage and 11 more	27 hr
Jun 9, 3:45 PM CDT	Severe Thunderstorm Warning	OAX	Colfax, Dodge, Saunders	45 min
Jun 9, 5:53 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson	22 min
Jun 9, 5:57 PM CDT	Tornado Warning	OAX	Jefferson	33 min
Jun 9, 6:10 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson, Saline	35 min
Jun 9, 6:13 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Jefferson, Saline	32 min
Jun 9, 6:16 PM CDT	Tornado Warning	OAX	Jefferson, Saline	29 min
Jun 9, 6:22 PM CDT	Severe Thunderstorm Warning	OAX	Butler, Saunders	23 min
Jun 9, 6:31 PM CDT	Areal Flood Advisory	OAX	Jefferson, Saline	2 hr
Jun 9, 6:31 PM CDT	Tornado Warning	OAX	Gage, Jefferson, Saline	29 min
Jun 9, 6:38 PM CDT	Severe Thunderstorm Warning	OAX	Gage, Lancaster, Saline, Seward	37 min
Jun 9, 6:42 PM CDT	Severe Thunderstorm Warning	OAX	Pawnee	48 min

Nearby

River Flood Warnings in Nebraska, 2020 Every river flood warning in 2020

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.