Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 302

April 8, 2004Lea County, New Mexico; 21 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2004, 7:42 PM MDT for Lea County, New Mexico; 21 counties in Texas. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued: Apr 8, 2004, 7:42 PM MDT (01:42 UTC)
Expired: Apr 8, 2004, 8:45 PM MDT
In force: 63 min
Issued by: the Storm Prediction Center

All 22 counties

Lea County, NM, Briscoe County, TX, Cochran County, TX, Collingsworth County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Kent County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX, Yoakum County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.7 hours before the alert went out and 157 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: 232 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1375 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

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 8, 6:19 PM MDT	Mesoscale Discussion	SPC	Eddy, Lea, Roosevelt	26 min
Apr 8, 6:40 PM MDT	Severe Thunderstorm Watch	SPC	Lea	4 hr
Apr 8, 9:18 PM MDT	Mesoscale Discussion	SPC	Lea	57 min
Apr 9, 3:20 PM MDT	Mesoscale Discussion	SPC	Harding, Quay, Union	115 min
Apr 9, 2:32 PM MDT	Mesoscale Discussion	SPC	Collin, Cooke, Denton, Fannin, Grayson, Lamar	88 min
Apr 9, 4:49 PM MDT	Mesoscale Discussion	SPC	Brown, Burnet, Callahan, Coleman, Comanche, Concho and 17 more	86 min

Nearby

Mesoscale Discussions in Texas, 2004 Mesoscale Discussions in New Mexico, 2004 Every mesoscale discussion in 2004

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.