Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 2322

August 30, 200316 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Aug 30, 2003, 10:53 AM CDT for 16 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Aug 30, 2003, 10:53 AM CDT (15:53 UTC)
Expired
Aug 30, 2003, 2:00 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center

Counties Brown County, TX, Callahan County, TX, Coleman County, TX, Eastland County, TX, Fisher County, TX, Haskell County, TX, Jones County, TX, Nolan County, TX, Palo Pinto County, TX, Runnels County, TX, Shackelford County, TX, Stephens County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Young County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 3.9 hours before the alert went out and 257 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 12:00Z on 2003-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 433 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 12:00Z on 2003-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
433 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
889 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
19 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
Aug 29, 11:35 PM CDTMesoscale DiscussionSPCCollingsworth, Donley, Gray, Hemphill, Wheeler115 min
Aug 30, 6:15 PM CDTMesoscale DiscussionSPCBosque, Brown, Comanche, Coryell, Erath, Hamilton and 10 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.