Alert archive / Texas / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 177

April 22, 200122 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 22, 2001, 11:45 PM CDT for 22 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 22, 2001, 11:45 PM CDT (04:45 UTC)
Expired
Apr 23, 2001, 5:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 22 counties

Bandera County, TX, Bell County, TX, Burnet County, TX, Comanche County, TX, Coryell County, TX, Edwards County, TX, Erath County, TX, Gillespie County, TX, Hamilton County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Real County, TX, San Saba County, TX, Sutton County, TX, Val Verde County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 22, 11:53 PM CDTSevere Thunderstorm WarningSJTSutton67 min
Apr 22, 11:56 PM CDTSevere Thunderstorm WarningSJTKimble64 min
Apr 23, 12:10 AM CDTSevere Thunderstorm WarningSJTMenard50 min
Apr 23, 12:11 AM CDTSevere Thunderstorm WarningEWXVal Verde64 min
Apr 23, 12:21 AM CDTSevere Thunderstorm WarningEWXEdwards69 min
Apr 23, 12:46 AM CDTSevere Thunderstorm WarningSJTMcCulloch44 min
Apr 23, 12:54 AM CDTFlash Flood WarningEWXVal Verde3 hr
Apr 23, 12:55 AM CDTSevere Thunderstorm WarningSJTMason50 min
Apr 23, 1:17 AM CDTSevere Thunderstorm WarningSJTKimble43 min
Apr 23, 1:18 AM CDTSevere Thunderstorm WarningEWXVal Verde42 min
Apr 23, 2:02 AM CDTFlash Flood WarningEWXEdwards118 min
Apr 23, 3:24 AM CDTSevere Thunderstorm WarningEWXBandera, Kerr66 min

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.8 hours before the alert went out and 158 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 2001-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1796 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 2001-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
1796 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
2172 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

Nearby

Severe Thunderstorm Watches in Texas, 2001Every severe thunderstorm watch in 2001

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.