Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 2121

October 16, 20069 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 16, 2006, 3:50 AM CDT for 9 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Oct 16, 2006, 3:50 AM CDT (08:50 UTC)
Expired
Oct 16, 2006, 5:15 AM CDT
In force
85 min
Issued by
the Storm Prediction Center

Counties Bandera County, TX, Dimmit County, TX, Frio County, TX, Kinney County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 43 km from the middle of the area, began a volume at 08:51 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

Midland Regional, TX (KMAF), launched 00:00Z, 8.8 hours before the alert went out and 382 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, Midland Regional, TX at 00:00Z on 2006-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 787 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, Midland Regional, TX at 00:00Z on 2006-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939587897117Sfc1 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
787 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
658 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

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
Oct 15, 10:57 PM CDTMesoscale DiscussionSPCAransas, Austin, Brazoria, Calhoun, Chambers, Colorado and 20 more63 min
Oct 15, 11:34 PM CDTTornado WatchSPCAustin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 10 more7 hr
Oct 16, 3:25 AM CDTMesoscale DiscussionSPCAustin, Brazoria, Calhoun, Chambers, Colorado, Fayette and 23 more95 min
Oct 16, 5:32 AM CDTMesoscale DiscussionSPCAustin, Brazoria, Calhoun, Chambers, Colorado, Fayette and 18 more88 min
Oct 16, 5:58 AM CDTTornado WatchSPCAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 23 more5 hr
Oct 16, 7:51 AM CDTMesoscale DiscussionSPCAngelina, Nacogdoches, Panola, Sabine, San Augustine, Shelby84 min
Oct 16, 10:37 AM CDTTornado WatchSPCAngelina, Austin, Brazoria, Chambers, Fort Bend, Galveston and 16 more9 hr
Oct 16, 12:39 PM CDTMesoscale DiscussionSPCAngelina, Brazoria, Chambers, Fort Bend, Galveston, Hardin and 11 more96 min
Oct 16, 3:37 PM CDTMesoscale DiscussionSPCBrazoria, Chambers, Galveston, Hardin, Harris, Jasper and 6 more83 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.