Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 319, NWS Sioux Falls, SD

September 16, 2019Union County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Sep 16, 2019, 2:14 PM CDT for Union County, South Dakota. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Sep 16, 2019, 2:14 PM CDT (19:14 UTC)
Expired: Oct 7, 2019, 2:14 PM CDT
In force: 21 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

County Union County, SD

The radar

The Sioux Falls radar (KFSD), 84 km from the middle of the area, began a volume at 19:17 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 Jefferson (BSJS2). The gauge peaked at 36.80 ft at Sep 18, 2019, 12:00 PM CDT.

Action stage: 28 ft
Minor stage: 31 ft
Moderate stage: 35 ft
Major stage: 40 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06485910, 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 Sep 16, 11:51 AM CDT, 2 hours 23 minutes earlier.

Area forecast discussion, Sep 16, 11:51 AM CDT, 2 hours 23 minutes before

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Hazardous weather outlook, Sep 16, 3:49 AM CDT, 10 hours 25 minutes before

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</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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Nearby

River Flood Warnings in South Dakota, 2019 Every river flood warning in 2019

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.