Alert archive / Texas / Mesoscale Discussions in 2014

Mesoscale Discussion 372

April 19, 20146 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 19, 2014, 7:00 PM CDT for 6 counties in Texas. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Apr 19, 2014, 7:00 PM CDT (00:00 UTC)
Expired: Apr 19, 2014, 8:30 PM CDT
In force: 90 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

Counties Brewster County, TX, Crane County, TX, Crockett County, TX, Pecos County, TX, Terrell County, TX, Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 162 km from the middle of the area, began a volume at 00:05 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

Midland Regional, TX (KMAF), launched 00:00Z, 0.0 hours before the alert went out and 162 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: 95 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 1712 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Apr 20, 2:55 PM CDT	Mesoscale Discussion	SPC	Briscoe, Childress, Cottle, Crosby, Dawson, Dickens and 10 more	2 hr
Apr 20, 6:33 PM CDT	Mesoscale Discussion	SPC	Armstrong, Briscoe, Childress, Collingsworth, Cottle, Crosby and 11 more	117 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; radar from the NEXRAD Level II archive.