Alert archive / Texas / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 272

May 9, 200215 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 9, 2002, 8:15 PM CDT for 15 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 9, 2002, 8:15 PM CDT (01:15 UTC)
Expired
May 10, 2002, 2:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Crockett County, TX, Edwards County, TX, Gillespie County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Real County, TX, San Saba County, TX, Schleicher County, TX, Sutton County, TX, Val Verde County, TX

Warnings issued inside it

6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 9, 8:24 PM CDTSevere Thunderstorm WarningEWXEdwards36 min
May 9, 8:27 PM CDTSevere Thunderstorm WarningEWXEdwards33 min
May 9, 8:28 PM CDTSevere Thunderstorm WarningEWXVal Verde62 min
May 9, 9:22 PM CDTSevere Thunderstorm WarningEWXEdwards53 min
May 9, 9:35 PM CDTSevere Thunderstorm WarningEWXVal Verde55 min
May 9, 10:38 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Val Verde52 min

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.3 hours before the alert went out and 145 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 2002-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3638 joules per kilogram.LCLEL10008507005003002001001 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 2002-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
3638 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.6
Supercell composite
7.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 9:00 PM CDTSevere Thunderstorm WatchSPCAnderson, Bosque, Brown, Callahan, Coleman, Collin and 34 more5 hr
May 9, 11:00 PM CDTSevere Thunderstorm WatchSPCBowie, Camp, Cass, Franklin, Gregg, Harrison and 11 more5 hr
May 10, 5:00 PM CDTSevere Thunderstorm WatchSPCAndrews, Brewster, Crane, Ector, Gaines, Loving and 7 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.