Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1347

June 12, 2003Jefferson County, Love County, Tillman County, Oklahoma; 22 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2003, 1:30 AM CDT for Jefferson County, Love County, Tillman County, Oklahoma; 22 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 12, 2003, 1:30 AM CDT (06:30 UTC)
Expired
Jun 12, 2003, 3:30 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 25 counties

Jefferson County, OK, Love County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Cooke County, TX, Denton County, TX, Foard County, TX, Hardeman County, TX, Haskell County, TX, Jack County, TX, King County, TX, Knox County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Stephens County, TX, Stonewall County, TX, Tarrant County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Wise County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 105 km from the middle of the area, began a volume at 06:33 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

Fort Worth, TX (KFWD), launched 00:00Z, 6.5 hours before the alert went out and 156 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-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2003-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4924 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2003-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
4924 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1353 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.8
Supercell composite
7.0

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.

IssuedProductOfficeCountiesLasted
Jun 11, 7:25 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Blaine, Bryan, Caddo, Canadian, Carter and 28 more6 hr
Jun 11, 10:15 PM CDTMesoscale DiscussionSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 31 more60 min
Jun 11, 10:25 PM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Cherokee, Choctaw, Craig, Creek and 23 more5 hr
Jun 12, 12:14 AM CDTMesoscale DiscussionSPCLatimer, LeFlore, McCurtain, Pushmataha2 hr
Jun 12, 3:30 PM CDTSevere Thunderstorm WatchSPCComanche, Cotton, Harmon, Jackson, Tillman6 hr
Jun 12, 5:59 PM CDTMesoscale DiscussionSPCCimarron91 min
Jun 11, 7:13 PM CDTMesoscale DiscussionSPCBorden, Callahan, Coke, Coleman, Concho, Crockett and 29 more62 min
Jun 11, 8:04 PM CDTMesoscale DiscussionSPCBell, Blanco, Bosque, Brown, Burnet, Caldwell and 27 more86 min
Jun 11, 8:15 PM CDTTornado WatchSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 29 more6 hr
Jun 11, 9:15 PM CDTSevere Thunderstorm WatchSPCBell, Bosque, Collin, Coryell, Dallas, Denton and 19 more5 hr
Jun 11, 11:10 PM CDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 29 more65 min
Jun 11, 11:49 PM CDTMesoscale DiscussionSPCBell, Bosque, Collin, Coryell, Dallas, Denton and 20 more86 min
Jun 12, 12:30 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Brazos, Burleson, Camp and 34 more2 hr
Jun 12, 1:10 AM CDTSevere Thunderstorm WatchSPCAnderson, Angelina, Austin, Bowie, Brazoria, Brazos and 39 more4 hr
Jun 12, 4:20 AM CDTMesoscale DiscussionSPCAngelina, Austin, Brazoria, Cass, Colorado, Fort Bend and 21 more55 min
Jun 12, 1:31 PM CDTMesoscale DiscussionSPCBrazos, Burleson, Grimes, Jasper, Montgomery, Newton and 5 more119 min
Jun 12, 1:56 PM CDTMesoscale DiscussionSPCBrown, Callahan, Coleman, Comanche, Concho, Eastland and 11 more2 hr

Nearby

Mesoscale Discussions in Texas, 2003Mesoscale Discussions in Oklahoma, 2003Every mesoscale discussion in 2003

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.