Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 266

May 6, 200334 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 6, 2003, 9:10 AM CDT for 34 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 6, 2003, 9:10 AM CDT (14:10 UTC)
Expired: May 6, 2003, 3:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 34 counties

Bell County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Freestone County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Kimble County, TX, Lampasas County, TX, Limestone County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, McLennan County, TX, Menard County, TX, Milam County, TX, Mills County, TX, Navarro County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Somervell County, TX, Sutton County, TX, Williamson County, TX

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 6, 9:25 AM CDT	Severe Thunderstorm Warning	SJT	Menard, Schleicher	65 min
May 6, 9:47 AM CDT	Severe Thunderstorm Warning	SJT	Sutton	43 min
May 6, 10:15 AM CDT	Severe Thunderstorm Warning	SJT	Kimble	45 min
May 6, 11:40 AM CDT	Severe Thunderstorm Warning	SJT	Kimble	50 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 2.2 hours before the alert went out and 242 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2816 J/kg
Mixed-layer CIN: -137 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.2

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.

Issued	Product	Office	Counties	Lasted
May 6, 8:44 AM CDT	Mesoscale Discussion	SPC	Bastrop, Bell, Blanco, Brazos, Burleson, Burnet and 14 more	2 hr
May 6, 12:14 PM CDT	Mesoscale Discussion	SPC	Bandera, Bell, Bexar, Blanco, Burnet, Comal and 16 more	2 hr
May 6, 2:21 PM CDT	Mesoscale Discussion	SPC	Austin, Bastrop, Brazos, Burleson, Colorado, Fayette and 11 more	114 min
May 6, 2:47 PM CDT	Mesoscale Discussion	SPC	Collin, Dallas, Delta, Fannin, Franklin, Grayson and 10 more	118 min
May 6, 4:46 PM CDT	Mesoscale Discussion	SPC	Collin, Dallas, Delta, Denton, Ellis, Fannin and 7 more	119 min
May 6, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	Collin, Cooke, Dallas, Delta, Denton, Eastland and 19 more	5 hr

Nearby

Severe Thunderstorm Watches in Texas, 2003 Every severe thunderstorm watch in 2003

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.