Alert archive / South Dakota / River Flood Warnings in 2019

River Flood Warning 21, NWS Rapid City, SD

May 27, 2019Lyman County, Tripp County, South Dakota

NWS Rapid City, SD issued this river flood warning at May 27, 2019, 2:16 AM CDT for Lyman County, Tripp County, South Dakota. It was in force for 5 days.

The area

The counties it named.

The facts

Issued: May 27, 2019, 2:16 AM CDT (07:16 UTC)
Expired: Jun 1, 2019, 9:30 AM CDT
In force: 5 days
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Flood severity: Minor

Counties Lyman County, SD, Tripp County, SD

The radar

The North Platte radar (KLNX), 194 km from the middle of the area, began a volume at 07:19 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 White River (NE-SD) near Oacoma (OACS2). The gauge peaked at 18.96 ft at May 29, 2019, 6:00 PM CDT.

Action stage: 15 ft
Minor stage: 17 ft
Moderate stage: 20 ft
Major stage: 25 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06452000, 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 Rapid City, SD wrote its last area forecast discussion before this river flood warning went out at May 26, 11:49 PM CDT, 2 hours 27 minutes earlier.

Area forecast discussion, May 26, 11:49 PM CDT, 2 hours 27 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, May 26, 5:14 AM CDT, 21 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service Rapid City SD
414 AM MDT Sun May 26 2019

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-271015-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
414 AM MDT Sun May 26 2019 /514 AM CDT Sun May 26 2019/

This Hazardous Weather Outlook is for western South Dakota and
northeastern Wyoming.

.DAY ONE...Today and Tonight

Flooding continues across portions of the western South Dakota
plains. See the latest Flood Warnings and Statements for details.

Thunderstorms will develop this afternoon and evening, some of
which will be strong to severe. Heavy rain from these
thunderstorms could worsen flooding; see the latest Flood Watch
for details.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms will continue into Monday morning. During somewhat
of a break in precipitation during the day, fog will develop
across some areas, especially around the Black Hills. Monday
evening, chances for thunderstorms will increase again, with the
potential for some strong storms with heavy rain.

Rain will persist into Tuesday. By Tuesday night, 1 to 2 inches of
total precipitation will be possible. See the latest Flood Watch
for details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

In the hours before

Local storm report, May 26, 9:10 PM CDT, 5 hours 6 minutes before

<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 7:14 PM CDT	Areal Flood Advisory	UNR	Meade	3 hr
May 26, 8:12 PM CDT	Special Weather Statement	UNR	Ziebach	33 min
May 26, 8:16 PM CDT	Areal Flood Advisory	UNR	Meade, Perkins, Ziebach	3 hr
May 26, 8:36 PM CDT	Areal Flood Advisory	UNR	Meade, Ziebach	3 hr
May 26, 10:09 PM CDT	Flash Flood Warning	UNR	Haakon, Meade, Ziebach	6 hr
May 27, 3:56 AM CDT	Areal Flood Warning	UNR	Haakon, Meade, Ziebach	36 hr
May 27, 7:35 AM CDT	River Flood Warning	UNR	Jackson	71 hr
May 27, 9:30 AM CDT	Dense Fog Advisory	UNR	Custer, Lawrence, Meade, Pennington	6 hr
May 27, 11:38 AM CDT	River Flood Warning	UNR	Jones, Mellette	21 days
May 27, 4:41 PM CDT	River Flood Warning	UNR	Haakon	29 hr

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.