Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 313, NWS Sioux Falls, SD

September 13, 2019Union County, South Dakota; Plymouth County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Sep 13, 2019, 11:43 AM CDT for Union County, South Dakota; Plymouth County, Iowa. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Sep 13, 2019, 11:43 AM CDT (16:43 UTC)
Expired: Oct 4, 2019, 11:43 AM CDT
In force: 21 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Plymouth County, IA, Union County, SD

The radar

The Sioux Falls radar (KFSD), 92 km from the middle of the area, began a volume at 16:44 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 Richland (BSRS2).

Action stage: 1116 ft
Minor stage: 1117 ft
Moderate stage: 1119 ft
Major stage: 1123 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 Sep 13, 6:33 AM CDT, 5 hours 10 minutes earlier.

Area forecast discussion, Sep 13, 6:33 AM CDT, 5 hours 10 minutes before

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Hazardous weather outlook, Sep 13, 3:35 AM CDT, 8 hours 8 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.
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      <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
Sep 13, 10:29 AM CDT	Areal Flood Warning	FSD	Aurora, Bon Homme, Brule, Charles Mix, Davison, Douglas and 4 more	24 hr
Sep 13, 1:13 PM CDT	Areal Flood Warning	FSD	Hanson, Lake, McCook, Miner, Minnehaha, Moody	24 hr
Sep 13, 1:36 AM CDT	River Flood Warning	FSD	Lyon, Sioux	3 days
Sep 12, 7:46 PM CDT	River Flood Warning	FSD	Murray	21 days

Nearby

River Flood Warnings in South Dakota, 2019 River Flood Warnings in Iowa, 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.