Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 402

April 2, 200637 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2006, 11:03 AM CDT for 37 counties in Texas. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Apr 2, 2006, 11:03 AM CDT (16:03 UTC)
Expired
Apr 2, 2006, 1:00 PM CDT
In force
117 min
Issued by
the Storm Prediction Center
All 37 counties

Anderson County, TX, Bell County, TX, Bosque County, TX, Burnet County, TX, Camp County, TX, Cherokee County, TX, Coryell County, TX, Ellis County, TX, Falls County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Hamilton County, TX, Harrison County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Houston County, TX, Kaufman County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Marion County, TX, McLennan County, TX, Mills County, TX, Morris County, TX, Navarro County, TX, Rains County, TX, Robertson County, TX, Rusk County, TX, San Saba County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 95 km from the middle of the area, began a volume at 16:07 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, 4.1 hours before the alert went out and 121 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 2006-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 825 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 12:00Z on 2006-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 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
825 J/kg
Mixed-layer CIN
-324 J/kg
Mixed-layer LCL
1367 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Apr 1, 7:53 PM CSTMesoscale DiscussionSPCConcho, Crockett, Irion, Runnels, Schleicher, Tom Green97 min
Apr 2, 11:34 AM CDTSevere Thunderstorm WatchSPCAnderson, Angelina, Bell, Camp, Cass, Cherokee and 27 more6 hr
Apr 2, 5:02 PM CDTMesoscale DiscussionSPCAnderson, Cherokee, Falls, Freestone, Gregg, Harrison and 11 more88 min

Nearby

Mesoscale Discussions in Texas, 2006Every mesoscale discussion in 2006

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.