Alert archive / Iowa / River Flood Warnings in 2024

River Flood Warning 31, NWS Sioux Falls, SD

June 18, 2024Cherokee County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Jun 18, 2024, 8:53 AM CDT for Cherokee County, Iowa. It took effect at Jun 18, 2024, 1:00 PM CDT. It was in force for 38 hr.

The area

The counties it named.

The facts

Issued: Jun 18, 2024, 8:53 AM CDT (13:53 UTC)
In effect from: Jun 18, 2024, 1:00 PM CDT
Expired: Jun 20, 2024, 3:01 AM CDT
In force: 38 hr
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

County Cherokee County, IA

The radar

The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 13:54 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 Little Sioux River at Cherokee (CHKI4).

Action stage: 15 ft
Minor stage: 17 ft
Moderate stage: 21 ft
Major stage: 24 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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 Sioux Falls, SD wrote its last area forecast discussion before this river flood warning went out at Jun 18, 6:21 AM CDT, 2 hours 32 minutes earlier.

Area forecast discussion, Jun 18, 6:21 AM CDT, 2 hours 32 minutes before

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Hazardous weather outlook, Jun 18, 4:12 AM CDT, 4 hours 41 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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</body>
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The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 6:16 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Union	16 min
Jun 17, 8:27 PM CDT	River Flood Warning	FSD	O'Brien	21 days
Jun 17, 11:20 PM CDT	River Flood Warning	FSD	Dickinson	21 days
Jun 17, 10:53 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	20 min

Nearby

River Flood Warnings in Iowa, 2024 Every river flood warning in 2024

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.