Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 756

May 8, 20078 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 8, 2007, 6:13 PM CDT for 8 counties in Texas. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
May 8, 2007, 6:13 PM CDT (23:13 UTC)
Expired
May 8, 2007, 7:15 PM CDT
In force
62 min
Issued by
the Storm Prediction Center

Counties Bandera County, TX, Edwards County, TX, Kerr County, TX, Kinney County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Val Verde County, TX

The watches that followed

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

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.2 hours before the alert went out and 54 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, Del Rio, TX at 12:00Z on 2007-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 380 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, Del Rio, TX at 12:00Z on 2007-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.193958Sfc1 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
380 J/kg
Mixed-layer CIN
-257 J/kg
Mixed-layer LCL
1022 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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
May 7, 7:15 PM CDTMesoscale DiscussionSPCCollin, Cooke, Delta, Fannin, Franklin, Grayson and 6 more60 min
May 7, 7:32 PM CDTTornado WatchSPCCamp, Clay, Collin, Cooke, Delta, Denton and 15 more7 hr
May 7, 8:37 PM CDTSevere Thunderstorm WatchSPCAndrews, Borden, Briscoe, Childress, Coke, Cottle and 38 more7 hr
May 7, 9:23 PM CDTMesoscale DiscussionSPCBandera, Dimmit, Edwards, Frio, Kerr, Kinney and 8 more67 min
May 7, 9:45 PM CDTMesoscale DiscussionSPCCamp, Clay, Collin, Cooke, Delta, Denton and 15 more60 min
May 7, 11:15 PM CDTMesoscale DiscussionSPCAndrews, Borden, Cochran, Crosby, Dawson, Dickens and 12 more60 min
May 7, 11:43 PM CDTMesoscale DiscussionSPCAndrews, Borden, Cochran, Crosby, Dawson, Dickens and 17 more62 min
May 8, 11:19 AM CDTMesoscale DiscussionSPCBorden, Callahan, Coke, Crane, Ector, Fisher and 20 more116 min
May 8, 12:01 PM CDTTornado WatchSPCAndrews, Borden, Brewster, Coke, Crane, Crockett and 27 more7 hr
May 8, 2:44 PM CDTMesoscale DiscussionSPCCoke, Crockett, Fisher, Glasscock, Irion, Mitchell and 6 more91 min
May 8, 2:46 PM CDTMesoscale DiscussionSPCArcher, Baylor, Bosque, Brown, Callahan, Clay and 33 more2 hr
May 8, 3:41 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 28 more6 hr
May 8, 5:09 PM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Hardeman, Jack, Jones and 8 more96 min
May 8, 5:29 PM CDTTornado WatchSPCArcher, Baylor, Clay, Haskell, Jack, Montague and 8 more5 hr
May 8, 6:58 PM CDTSevere Thunderstorm WatchSPCBandera, Dimmit, Edwards, Gillespie, Kendall, Kerr and 8 more4 hr

Nearby

Mesoscale Discussions in Texas, 2007Every 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.