Alert archive / South Dakota / Mesoscale Discussions in 2005

Mesoscale Discussion 1536

June 29, 20057 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2005, 2:47 AM CDT for 7 counties in South Dakota. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Jun 29, 2005, 2:47 AM CDT (07:47 UTC)
Expired: Jun 29, 2005, 4:15 AM CDT
In force: 88 min
Issued by: the Storm Prediction Center

Counties Brown County, SD, Edmunds County, SD, Faulk County, SD, McPherson County, SD, Potter County, SD, Spink County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 65 km from the middle of the area, began a volume at 07:51 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 nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 7.8 hours before the alert went out and 61 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1880 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 1183 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 7:15 PM CDT	Severe Thunderstorm Watch	SPC	Aurora, Brule, Buffalo, Campbell, Charles Mix, Corson and 19 more	5 hr
Jun 28, 8:50 PM CDT	Severe Thunderstorm Watch	SPC	Harding, Perkins	7 hr
Jun 28, 10:15 PM CDT	Mesoscale Discussion	SPC	Aurora, Bennett, Brule, Buffalo, Charles Mix, Corson and 19 more	60 min
Jun 28, 10:45 PM CDT	Severe Thunderstorm Watch	SPC	Brule, Buffalo, Butte, Campbell, Corson, Dewey and 15 more	7 hr
Jun 28, 11:11 PM CDT	Mesoscale Discussion	SPC	Harding	94 min
Jun 29, 11:01 AM CDT	Mesoscale Discussion	SPC	Brookings, Brown, Clark, Codington, Day, Deuel and 7 more	59 min
Jun 29, 11:30 AM CDT	Tornado Watch	SPC	Aurora, Beadle, Bon Homme, Brookings, Brown, Charles Mix and 25 more	7 hr
Jun 29, 1:52 PM CDT	Mesoscale Discussion	SPC	Brookings, Brown, Clark, Codington, Day, Deuel and 8 more	113 min
Jun 29, 3:37 PM CDT	Mesoscale Discussion	SPC	Brookings, Deuel, Grant, Moody, Roberts	53 min
Jun 29, 3:50 PM CDT	Tornado Watch	SPC	Deuel, Grant	7 hr

Nearby

Mesoscale Discussions in South Dakota, 2005 Every mesoscale discussion in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.