Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 2125

August 8, 200342 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Aug 8, 2003, 6:05 PM CDT for 42 counties in Texas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Aug 8, 2003, 6:05 PM CDT (23:05 UTC)
Expired
Aug 8, 2003, 7:30 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 42 counties

Atascosa County, TX, Austin County, TX, Bandera County, TX, Bastrop County, TX, Bee County, TX, Bexar County, TX, Blanco County, TX, Caldwell County, TX, Colorado County, TX, Comal County, TX, Concho County, TX, DeWitt County, TX, Edwards County, TX, Fayette County, TX, Fort Bend County, TX, Frio County, TX, Gillespie County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Harris County, TX, Hays County, TX, Jackson County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Lavaca County, TX, Live Oak County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Medina County, TX, Menard County, TX, Real County, TX, Sutton County, TX, Travis County, TX, Uvalde County, TX, Victoria County, TX, Wharton County, TX, Wilson County, TX, Zavala County, TX

The radar

The Austin/San Antonio radar (KEWX), 33 km from the middle of the area, began a volume at 23:05 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.1 hours before the alert went out and 243 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 2003-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1111 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 2003-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -108 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
1111 J/kg
Mixed-layer CIN
-185 J/kg
Mixed-layer LCL
1998 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-108 m²/s²
0-3 km storm-relative helicity
-80 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 8, 3:11 PM CDTMesoscale DiscussionSPCAustin, Bandera, Bastrop, Bell, Bexar, Blanco and 37 more3 hr
Aug 8, 6:37 PM CDTMesoscale DiscussionSPCArmstrong, Carson, Dallam, Deaf Smith, Donley, Gray and 10 more2 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; radar from the NEXRAD Level II archive.