Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 264, NWS Sioux Falls, SD

August 3, 2019Yankton County, South Dakota

NWS Sioux Falls, SD issued this river flood warning at Aug 3, 2019, 1:33 PM CDT for Yankton County, South Dakota. It took effect at Aug 3, 2019, 3:45 PM CDT. It was in force for 32 days.

The area

The counties it named.

The facts

Issued
Aug 3, 2019, 1:33 PM CDT (18:33 UTC)
In effect from
Aug 3, 2019, 3:45 PM CDT
Expired
Sep 4, 2019, 8:49 AM CDT
In force
32 days
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Flood severity
Minor

County Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 84 km from the middle of the area, began a volume at 18:35 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 near Yankton (YNNS2).

Action stage
10 ft
Minor stage
12 ft
Moderate stage
16 ft
Major stage
21 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06478513, 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 Aug 3, 11:48 AM CDT, 1 hour 45 minutes earlier.

Area forecast discussion, Aug 3, 11:48 AM CDT, 1 hour 45 minutes before
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Hazardous weather outlook, Aug 3, 4:42 AM CDT, 8 hours 51 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
442 AM CDT Sat Aug 3 2019

NEZ013-014-SDZ038>040-050-052>071-040945-
Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory-Jerauld-Sanborn-
Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-Minnehaha-
Charles Mix-Douglas-Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Clay-
Union-
442 AM CDT Sat Aug 3 2019

This Hazardous Weather Outlook is for northeast Nebraska, central
South Dakota, east central South Dakota, south central South Dakota
and southeast South Dakota.

.DAY ONE...Today and tonight.

Scattered showers and isolated thunderstorms will be possible, mainly
early today. Severe storms are not expected, though locally heavy
rainfall will be possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Scattered thunderstorms are expected to develop across the area on
Monday. A few of these storms could be severe on Monday afternoon and
evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-040945-
Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-
442 AM CDT Sat Aug 3 2019

This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa and southwest Minnesota.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Scattered thunderstorms are expected to develop across the area on
Monday. A few of these storms could be severe on Monday afternoon and
evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Aug 3, 8:44 AM CDT, 4 hours 49 minutes before
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Local storm report, Aug 3, 8:48 AM CDT, 4 hours 45 minutes before
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Local storm report, Aug 3, 8:58 AM CDT, 4 hours 35 minutes before
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        Please try again in a few minutes.
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Local storm report, Aug 3, 9:11 AM CDT, 4 hours 22 minutes before
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      </p>
      <p id="message2">
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Local storm report, Aug 3, 9:18 AM CDT, 4 hours 15 minutes before
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<body>
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      <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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Local storm report, Aug 3, 10:34 AM CDT, 2 hours 59 minutes before
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  <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.
      </p>
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 2:42 AM CDTAreal Flood WarningFSDClay, Hutchinson, Turner, Yankton6 hr
Aug 3, 6:12 AM CDTAreal Flood WarningFSDHutchinson6 hr
Aug 3, 8:35 AM CDTRiver Flood WarningFSDDavison35 hr

Nearby

River Flood Warnings in South Dakota, 2019Every 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.