Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 247, NWS Sioux Falls, SD

July 10, 2019Lincoln County, South Dakota; Sioux County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Jul 10, 2019, 4:38 PM CDT for Lincoln County, South Dakota; Sioux County, Iowa. It was in force for 21 days.

The area

The counties it named.

The facts

Issued: Jul 10, 2019, 4:38 PM CDT (21:38 UTC)
Expired: Jul 31, 2019, 4:38 PM CDT
In force: 21 days
Issued by: NWS Sioux Falls, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Sioux County, IA, Lincoln County, SD

The radar

The Sioux Falls radar (KFSD), 51 km from the middle of the area, began a volume at 21:38 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 at Fairview (FVWS2).

Action stage: 1200 ft
Minor stage: 1202 ft
Moderate stage: 1208 ft
Major stage: 1214 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 Jul 10, 2:43 PM CDT, 1 hour 55 minutes earlier.

Area forecast discussion, Jul 10, 2:43 PM CDT, 1 hour 55 minutes before

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Hazardous weather outlook, Jul 10, 4:22 AM CDT, 12 hours 16 minutes before

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  <meta charset="utf-8">
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  <title>Service Notice</title>
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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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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:08 PM CDT	Severe Thunderstorm Warning	FSD	Gregory	52 min
Jul 9, 10:13 PM CDT	River Flood Warning	FSD	Union	5 days
Jul 10, 12:53 AM CDT	River Flood Warning	FSD	Brookings	21 days
Jul 10, 6:19 AM CDT	River Flood Warning	FSD	Lincoln	19 hr
Jul 10, 8:54 AM CDT	River Flood Warning	FSD	Minnehaha, Moody	16 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.