Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 126

February 24, 20047 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2004, 10:16 AM CST for 7 counties in Texas. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
Feb 24, 2004, 10:16 AM CST (16:16 UTC)
Expired
Feb 24, 2004, 12:15 PM CST
In force
119 min
Issued by
the Storm Prediction Center

Counties Aransas County, TX, Duval County, TX, Jim Wells County, TX, Kleberg County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 4.3 hours before the alert went out and 43 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 2004-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 580 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, Corpus Christi, TX at 12:00Z on 2004-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.19395878Sfc1 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
580 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
251 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

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
Feb 23, 6:19 PM CSTMesoscale DiscussionSPCBandera, Bastrop, Bell, Caldwell, Comal, Coryell and 8 more86 min
Feb 23, 8:10 PM CSTMesoscale DiscussionSPCDimmit, Kinney, La Salle, Maverick, Uvalde, Zavala2 hr
Feb 23, 11:51 PM CSTMesoscale DiscussionSPCBee, Brooks, Cameron, Duval, Hidalgo, Jim Hogg and 13 more4 hr
Feb 24, 3:48 PM CSTMesoscale DiscussionSPCDimmit, Duval, Frio, Kinney, La Salle, McMullen and 5 more117 min

Nearby

Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004

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.