Alert archive / South Dakota / River Flood Warnings in 2018

River Flood Warning 21, NWS Sioux Falls, SD

March 22, 2018Brookings County, Moody County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Mar 22, 2018, 7:24 AM CDT for Brookings County, Moody County, South Dakota. It took effect at Mar 24, 2018, 4:00 PM CDT. It was in force for 60 hr.

The area

The counties it named.

The facts

Issued: Mar 22, 2018, 7:24 AM CDT (12:24 UTC)
In effect from: Mar 24, 2018, 4:00 PM CDT
Expired: Mar 27, 2018, 4:00 AM CDT
In force: 60 hr
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Brookings County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 68 km from the middle of the area, began a volume at 12:28 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 Big Sioux River near Brookings (BRKS2).

Action stage: 8 ft
Minor stage: 9 ft
Moderate stage: 10.5 ft
Major stage: 15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06480000, 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 Mar 22, 6:07 AM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, Mar 22, 6:07 AM CDT, 1 hour 17 minutes before

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Hazardous weather outlook, Mar 22, 5:21 AM CDT, 2 hours 3 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
Mar 22, 7:24 AM CDT	River Flood Warning	FSD	Brookings	4 days
Mar 22, 3:49 PM CDT	Winter Weather Advisory	FSD	Brookings, Moody	45 hr
Mar 21, 8:27 PM CDT	Winter Storm Watch	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray	31 hr
Mar 21, 10:19 PM CDT	River Flood Warning	FSD	Lyon	24 hr

Nearby

River Flood Warnings in South Dakota, 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.