Alert archive / South Dakota / River Flood Warnings in 2023

River Flood Warning 27, NWS Sioux Falls, SD

April 11, 2023Beadle County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Apr 11, 2023, 11:11 PM CDT for Beadle County, South Dakota. It took effect at Apr 12, 2023, 2:30 AM CDT. It was in force for 81 days.

The area

The counties it named.

The facts

Issued: Apr 11, 2023, 11:11 PM CDT (04:11 UTC)
In effect from: Apr 12, 2023, 2:30 AM CDT
Expired: Jul 2, 2023, 9:27 AM CDT
In force: 81 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Moderate

County Beadle County, SD

The radar

The Aberdeen radar (KABR), 116 km from the middle of the area, began a volume at 04:12 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 James River at Huron (HURS2).

Action stage: 10.5 ft
Minor stage: 11.5 ft
Moderate stage: 15 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06476000, 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 Apr 11, 10:42 PM CDT, 29 minutes earlier.

Area forecast discussion, Apr 11, 10:42 PM CDT, 29 minutes before

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Hazardous weather outlook, Apr 11, 6:45 PM CDT, 4 hours 26 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 Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 12, 3:05 AM CDT	Fire Weather Watch	FSD	Bon Homme, Clay, Hutchinson, Lincoln, McCook, Minnehaha and 3 more	12 hr
Apr 12, 3:19 AM CDT	River Flood Warning	FSD	Union	21 days
Apr 12, 3:16 PM CDT	Red Flag Warning	FSD	Bon Homme, Charles Mix, Clay, Davison, Douglas, Gregory and 10 more	29 hr
Apr 12, 5:20 AM CDT	River Flood Warning	FSD	Lyon	49 hr
Apr 12, 2:23 PM CDT	River Flood Warning	FSD	Cottonwood, Murray	5 days

Nearby

River Flood Warnings in South Dakota, 2023 Every river flood warning in 2023

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.