Alert archive / South Dakota / Special Weather Statements in 2018

Special Weather Statement, NWS Aberdeen, SD

June 14, 2018Corson County, South Dakota

NWS Aberdeen, SD issued this special weather statement at Jun 14, 2018, 6:13 PM MDT for Corson County, South Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 14, 2018, 6:13 PM MDT (00:13 UTC)
Expired: Jun 14, 2018, 6:45 PM MDT
In force: 32 min
Issued by: NWS Aberdeen, SD

County Corson County, SD

The radar

The Bismarck radar (KBIS), 146 km from the middle of the area, began a volume at 00:14 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.2 hours before the alert went out and 149 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: 2531 J/kg
Mixed-layer CIN: -283 J/kg
Mixed-layer LCL: 1747 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 14, 6:13 PM MDT, 0 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 Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 6:29 PM MDT	Special Weather Statement	ABR	Dewey	31 min
Jun 14, 6:39 PM MDT	Severe Thunderstorm Warning	ABR	Corson	38 min
Jun 14, 7:23 PM MDT	Special Weather Statement	ABR	Corson	52 min
Jun 14, 8:45 PM MDT	Special Weather Statement	ABR	Dewey	30 min
Jun 14, 8:46 PM MDT	Special Weather Statement	ABR	Corson	29 min
Jun 14, 9:38 PM MDT	Special Weather Statement	ABR	Walworth	37 min
Jun 14, 9:49 PM MDT	Severe Thunderstorm Warning	ABR	Corson, Dewey, Walworth	26 min
Jun 14, 10:14 PM MDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, McPherson	46 min

Nearby

Special Weather Statements in South Dakota, 2018 Every special weather statement in 2018

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.