Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1972

July 23, 200320 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 23, 2003, 2:20 PM CDT for 20 counties in Texas. It was in force for 115 min.

The area

The outline as issued.

The facts

Issued
Jul 23, 2003, 2:20 PM CDT (19:20 UTC)
Expired
Jul 23, 2003, 4:15 PM CDT
In force
115 min
Issued by
the Storm Prediction Center

Counties Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Comal County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Medina County, TX, Real County, TX, Schleicher County, TX, Sutton County, TX, Uvalde County, TX, Wilson County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 7.3 hours before the alert went out and 154 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 2003-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3092 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 2003-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 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
3092 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
751 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
38 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.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 22, 7:09 PM CDTMesoscale DiscussionSPCCamp, Collin, Dallas, Denton, Eastland, Ellis and 29 more96 min
Jul 22, 9:32 PM CDTMesoscale DiscussionSPCCamp, Cherokee, Collin, Dallas, Ellis, Gregg and 18 more58 min
Jul 23, 10:51 AM CDTMesoscale DiscussionSPCBastrop, Blanco, Burleson, Burnet, Caldwell, Comal and 7 more114 min
Jul 23, 6:30 PM CDTMesoscale DiscussionSPCAndrews, Cochran, Crane, Ector, Gaines, Loving and 5 more3 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.