Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 2135

August 9, 20034 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Aug 9, 2003, 3:09 PM CDT for 4 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Aug 9, 2003, 3:09 PM CDT (20:09 UTC)
Expired
Aug 9, 2003, 5:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center

Counties Edwards County, TX, Kinney County, TX, Real County, TX, Uvalde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 8.2 hours before the alert went out and 41 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, Del Rio, TX at 12:00Z on 2003-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2504 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, Del Rio, TX at 12:00Z on 2003-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
2504 J/kg
Mixed-layer CIN
-233 J/kg
Mixed-layer LCL
1780 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

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
Aug 9, 7:44 AM CDTMesoscale DiscussionSPCCollin, Cooke, Dallas, Denton, Ellis, Hill and 12 more91 min
Aug 9, 11:53 AM CDTMesoscale DiscussionSPCAustin, Bastrop, Bell, Bosque, Brazos, Burleson and 24 more2 hr

Nearby

Mesoscale Discussions in Texas, 2003Every mesoscale discussion 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.