Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 696

May 13, 200411 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 13, 2004, 9:39 PM CDT for 11 counties in Texas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
May 13, 2004, 9:39 PM CDT (02:39 UTC)
Expired
May 13, 2004, 11:15 PM CDT
In force
96 min
Issued by
the Storm Prediction Center

Counties Bandera County, TX, Edwards County, TX, Gillespie County, TX, Kerr County, TX, Kimble County, TX, Mason County, TX, Medina County, TX, Menard County, TX, Real County, TX, Schleicher County, TX, Sutton County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.7 hours before the alert went out and 126 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 2004-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4095 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 2004-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
4095 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
51 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
May 13, 7:00 PM CDTSevere Thunderstorm WatchSPCAransas, Bee, Dimmit, Duval, Frio, Jim Wells and 9 more5 hr
May 13, 9:57 PM CDTMesoscale DiscussionSPCAransas, Bee, Dimmit, Duval, Frio, Jim Wells and 9 more93 min
May 13, 10:13 PM CDTMesoscale DiscussionSPCBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more92 min
May 13, 11:17 PM CDTMesoscale DiscussionSPCAransas, Bandera, Bee, Brooks, Cameron, Dimmit and 27 more58 min
May 13, 11:45 PM CDTSevere Thunderstorm WatchSPCBrooks, Cameron, Hidalgo, Kenedy, Kleberg, Starr and 1 more4 hr
May 14, 2:14 AM CDTMesoscale DiscussionSPCBrooks, Cameron, Hidalgo, Kenedy, Kleberg, Starr and 1 more91 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.