Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 1380

June 14, 20086 counties in Oklahoma; 19 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2008, 6:45 PM CDT for 6 counties in Oklahoma; 19 counties in Texas. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Jun 14, 2008, 6:45 PM CDT (23:45 UTC)
Expired: Jun 14, 2008, 8:15 PM CDT
In force: 90 min
Issued by: the Storm Prediction Center

All 25 counties

Beckham County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Roger Mills County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Donley County, TX, Foard County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hemphill County, TX, Hutchinson County, TX, Motley County, TX, Potter County, TX, Roberts County, TX, Wheeler County, TX, Wilbarger County, TX

The radar

The Amarillo radar (KAMA), 102 km from the middle of the area, began a volume at 23:47 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 534Jun 14, 9:15 PM CDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.8 hours before the alert went out and 101 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: 442 J/kg
Mixed-layer CIN: -331 J/kg
Mixed-layer LCL: 1444 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 400 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

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 13, 8:11 PM CDT	Mesoscale Discussion	SPC	Adair, Cherokee, Creek, Haskell, Hughes, McIntosh and 6 more	94 min
Jun 13, 10:37 PM CDT	Mesoscale Discussion	SPC	Atoka, Bryan, Caddo, Canadian, Carter, Choctaw and 32 more	83 min
Jun 13, 10:48 PM CDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Caddo, Canadian, Carter, Choctaw and 33 more	6 hr
Jun 13, 10:54 PM CDT	Mesoscale Discussion	SPC	Atoka, Carter, Choctaw, Cleveland, Coal, Garvin and 19 more	3 hr
Jun 14, 4:38 AM CDT	Mesoscale Discussion	SPC	Atoka, Choctaw, McCurtain, Pushmataha	67 min
Jun 14, 3:35 PM CDT	Mesoscale Discussion	SPC	Beaver, Beckham, Ellis, Harmon, Roger Mills, Texas	85 min
Jun 14, 3:10 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Fisher, Haskell, Jack and 7 more	95 min
Jun 14, 3:47 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Bailey, Briscoe, Carson, Castro, Childress and 34 more	5 hr

Nearby

Mesoscale Discussions in Texas, 2008 Mesoscale Discussions in Oklahoma, 2008 Every mesoscale discussion in 2008

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.