Alert archive / Texas / Mesoscale Discussions in 2014

Mesoscale Discussion 989

June 13, 20149 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2014, 7:30 PM CDT for 9 counties in Texas. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2014, 7:30 PM CDT (00:30 UTC)
Expired: Jun 13, 2014, 8:30 PM CDT
In force: 60 min
Issued by: the Storm Prediction Center

Counties Bailey County, TX, Castro County, TX, Cochran County, TX, Deaf Smith County, TX, Hockley County, TX, Lamb County, TX, Parmer County, TX, Randall County, TX, Yoakum County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.5 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: 736 J/kg
Mixed-layer CIN: -183 J/kg
Mixed-layer LCL: 1639 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

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 13, 7:08 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Cochran and 16 more	4 hr
Jun 14, 5:43 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Coke, Crane, Crockett, Dawson and 16 more	92 min

Nearby

Mesoscale Discussions in Texas, 2014 Every mesoscale discussion in 2014

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.