Alert archive / Texas / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 606

August 13, 200210 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Aug 13, 2002, 7:15 PM CDT for 10 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 13, 2002, 7:15 PM CDT (00:15 UTC)
Expired
Aug 14, 2002, 1:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Brown County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Irion County, TX, McCulloch County, TX, Runnels County, TX, San Saba County, TX, Sterling County, TX, Tom Green County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.3 hours before the alert went out and 183 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 00:00Z on 2002-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1965 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 00:00Z on 2002-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
1965 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
2733 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 13, 8:55 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Clay, Collin, Cooke, Delta and 17 more5 hr

Nearby

Severe Thunderstorm Watches in Texas, 2002Every severe thunderstorm watch in 2002

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.