Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 116

February 23, 200412 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 23, 2004, 1:22 AM CST for 12 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Feb 23, 2004, 1:22 AM CST (07:22 UTC)
Expired
Feb 23, 2004, 3:45 AM CST
In force
2 hr
Issued by
the Storm Prediction Center

Counties Crockett County, TX, Dimmit County, TX, Edwards County, TX, Kinney County, TX, Maverick County, TX, Real County, TX, Schleicher County, TX, Sutton County, TX, Terrell County, TX, Uvalde County, TX, Val Verde County, TX, Zavala County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 7.4 hours before the alert went out and 31 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 00:00Z on 2004-02-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2004-02-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
939 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
84 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
Feb 23, 7:12 AM CSTMesoscale DiscussionSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 27 more2 hr
Feb 23, 1:35 PM CSTMesoscale DiscussionSPCBandera, Bastrop, Bell, Bexar, Blanco, Burnet and 20 more115 min
Feb 23, 2:10 PM CSTSevere Thunderstorm WatchSPCBandera, Bastrop, Bell, Blanco, Burnet, Caldwell and 13 more6 hr

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.