Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 2073

October 13, 2007Clark County, Kansas; Beaver County, Ellis County, Oklahoma; 8 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 13, 2007, 11:27 PM CDT for Clark County, Kansas; Beaver County, Ellis County, Oklahoma; 8 counties in Texas. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued: Oct 13, 2007, 11:27 PM CDT (04:27 UTC)
Expired: Oct 14, 2007, 12:30 AM CDT
In force: 63 min
Issued by: the Storm Prediction Center

Counties Clark County, KS, Beaver County, OK, Ellis County, OK, Armstrong County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 149 km from the middle of the area, began a volume at 04:30 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

Dodge City, (KDDC), launched 00:00Z, 4.5 hours before the alert went out and 188 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: 1349 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 1653 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 285 m²/s²
0-3 km storm-relative helicity: 496 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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
Oct 13, 8:27 PM CDT	Mesoscale Discussion	SPC	Barton, Clay, Cloud, Dickinson, Edwards, Ellis and 33 more	93 min
Oct 13, 9:17 PM CDT	Severe Thunderstorm Watch	SPC	Barton, Cloud, Decatur, Edwards, Ellis, Ellsworth and 33 more	8 hr
Oct 13, 11:01 PM CDT	Mesoscale Discussion	SPC	Barton, Decatur, Edwards, Ellis, Ellsworth, Finney and 27 more	89 min
Oct 14, 1:53 AM CDT	Mesoscale Discussion	SPC	Barton, Clark, Cloud, Edwards, Ellis, Ellsworth and 15 more	2 hr
Oct 14, 12:56 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Cloud, Comanche, Edwards and 18 more	64 min
Oct 14, 2:14 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Butler, Chase, Chautauqua, Clay, Cowley and 25 more	7 hr
Oct 14, 4:59 PM CDT	Mesoscale Discussion	SPC	Butler, Chase, Chautauqua, Clay, Cloud, Cowley and 28 more	2 hr
Oct 14, 3:18 PM CDT	Mesoscale Discussion	SPC	Beckham, Caddo, Canadian, Comanche, Cotton, Custer and 7 more	117 min
Oct 14, 3:47 PM CDT	Tornado Watch	SPC	Beckham, Blaine, Caddo, Canadian, Comanche, Cotton and 12 more	6 hr
Oct 14, 5:28 PM CDT	Mesoscale Discussion	SPC	Blaine, Caddo, Canadian, Comanche, Cotton, Custer and 10 more	62 min

Nearby

Mesoscale Discussions in Texas, 2007 Mesoscale Discussions in Oklahoma, 2007 Mesoscale Discussions in Kansas, 2007 Every mesoscale discussion in 2007

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.