Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 723

May 2, 20065 parishes in Louisiana; 31 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 2, 2006, 3:17 PM CDT for 5 parishes in Louisiana; 31 counties in Texas. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued
May 2, 2006, 3:17 PM CDT (20:17 UTC)
Expired
May 2, 2006, 5:15 PM CDT
In force
118 min
Issued by
the Storm Prediction Center
All 36 counties

Allen Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Rapides Parish, LA, Vernon Parish, LA, Austin County, TX, Bastrop County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Fayette County, TX, Gillespie County, TX, Grimes County, TX, Guadalupe County, TX, Hardin County, TX, Hays County, TX, Jasper County, TX, Kendall County, TX, Lee County, TX, Liberty County, TX, Llano County, TX, Milam County, TX, Montgomery County, TX, Newton County, TX, Polk County, TX, Sabine County, TX, San Jacinto County, TX, Travis County, TX, Tyler County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 84 km from the middle of the area, began a volume at 20:16 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

Corpus Christi, TX (KCRP), launched 12:00Z, 8.3 hours before the alert went out and 321 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, Corpus Christi, TX at 12:00Z on 2006-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3515 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, Corpus Christi, TX at 12:00Z on 2006-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
3515 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 1, 7:51 PM CDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 23 more84 min
May 2, 1:55 AM CDTSevere Thunderstorm WatchSPCArcher, Clay, Collin, Cooke, Dallas, Denton and 14 more8 hr
May 2, 3:52 AM CDTMesoscale DiscussionSPCArcher, Clay, Collin, Cooke, Dallas, Delta and 16 more113 min
May 2, 7:38 AM CDTMesoscale DiscussionSPCArcher, Clay, Collin, Cooke, Delta, Denton and 14 more97 min
May 2, 1:45 PM CDTMesoscale DiscussionSPCFannin, Grayson90 min
May 2, 2:22 PM CDTMesoscale DiscussionSPCArmstrong, Baylor, Borden, Briscoe, Callahan, Carson and 47 more23 min
May 2, 2:39 PM CDTTornado WatchSPCArmstrong, Baylor, Briscoe, Brown, Callahan, Carson and 37 more8 hr
May 2, 5:26 PM CDTMesoscale DiscussionSPCArcher, Baylor, Briscoe, Callahan, Carson, Childress and 33 more94 min
May 2, 5:42 PM CDTTornado WatchSPCArcher, Clay, Wichita5 hr
May 2, 6:30 PM CDTMesoscale DiscussionSPCArcher, Baylor, Callahan, Childress, Clay, Coke and 40 more90 min

Nearby

Mesoscale Discussions in Texas, 2006Mesoscale Discussions in Louisiana, 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.