Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 240

February 16, 200845 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 16, 2008, 10:00 AM CST for 45 counties in Texas. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Feb 16, 2008, 10:00 AM CST (16:00 UTC)
Expired
Feb 16, 2008, 11:30 AM CST
In force
90 min
Issued by
the Storm Prediction Center
All 45 counties

Archer County, TX, Bandera County, TX, Baylor County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Eastland County, TX, Edwards County, TX, Erath County, TX, Fisher County, TX, Foard County, TX, Gillespie County, TX, Haskell County, TX, Irion County, TX, Jack County, TX, Jones County, TX, Kerr County, TX, Kimble County, TX, Knox County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Nolan County, TX, Palo Pinto County, TX, Real County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Uvalde County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 62 km from the middle of the area, began a volume at 16:01 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.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 4.0 hours before the alert went out and 226 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 12:00Z on 2008-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2008-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 591 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
362 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
591 m²/s²
0-3 km storm-relative helicity
667 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.9

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
Feb 15, 7:00 PM CSTMesoscale DiscussionSPCAtascosa, Bexar, Dimmit, Frio, Guadalupe, Karnes and 3 more90 min
Feb 15, 10:38 PM CSTMesoscale DiscussionSPCAustin, Grimes, Hardin, Harris, Jasper, Liberty and 7 more97 min
Feb 15, 11:43 PM CSTMesoscale DiscussionSPCArmstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 24 more5 hr
Feb 16, 1:09 AM CSTMesoscale DiscussionSPCAnderson, Angelina, Archer, Baylor, Camp, Chambers and 58 more66 min
Feb 16, 2:53 AM CSTMesoscale DiscussionSPCBorden, Coke, Concho, Edwards, Fisher, Glasscock and 16 more67 min
Feb 16, 6:36 AM CSTMesoscale DiscussionSPCArmstrong, Carson, Collingsworth, Donley, Gray, Hansford and 12 more4 hr
Feb 16, 12:01 PM CSTMesoscale DiscussionSPCBastrop, Bell, Blanco, Bosque, Brown, Burnet and 30 more89 min
Feb 16, 12:35 PM CSTSevere Thunderstorm WatchSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 50 more6 hr
Feb 16, 2:00 PM CSTMesoscale DiscussionSPCAnderson, Angelina, Austin, Bee, Brazoria, Brazos and 49 more90 min
Feb 16, 2:26 PM CSTTornado WatchSPCAnderson, Angelina, Austin, Bastrop, Brazoria, Brazos and 54 more6 hr
Feb 16, 3:31 PM CSTMesoscale DiscussionSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 41 more59 min
Feb 16, 5:57 PM CSTMesoscale DiscussionSPCAngelina, Austin, Brazoria, Chambers, Cherokee, Colorado and 29 more2 hr

Nearby

Mesoscale Discussions in Texas, 2008Every 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.