Alert archive / Texas / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 8

January 29, 200139 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jan 29, 2001, 12:00 AM CST for 39 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jan 29, 2001, 12:00 AM CST (06:00 UTC)
Expired
Jan 29, 2001, 5:00 AM CST
In force
5 hr
Issued by
the Storm Prediction Center
All 39 counties

Anderson County, TX, Austin County, TX, Bastrop County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Cherokee County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Freestone County, TX, Gonzales County, TX, Gregg County, TX, Grimes County, TX, Harrison County, TX, Henderson County, TX, Houston County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, Marion County, TX, Milam County, TX, Montgomery County, TX, Nacogdoches County, TX, Panola County, TX, Rains County, TX, Robertson County, TX, Rusk County, TX, Smith County, TX, Trinity County, TX, Upshur County, TX, Van Zandt County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Wood County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jan 29, 2:56 AM CSTSevere Thunderstorm WarningHGXMontgomery64 min
Jan 29, 3:25 AM CSTSevere Thunderstorm WarningSHVNacogdoches, Panola, Rusk, Shelby65 min
Jan 29, 3:57 AM CSTSevere Thunderstorm WarningHGXLiberty, Montgomery48 min

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.0 hours before the alert went out and 308 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, Lake Charles Mun, LA at 00:00Z on 2001-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1124 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, Lake Charles Mun, LA at 00:00Z on 2001-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 square meters per square second.19395878Sfc1 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
1124 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
526 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.4

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.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 29, 3:45 AM CSTSevere Thunderstorm WatchSPCAngelina, Chambers, Fort Bend, Galveston, Hardin, Harris and 10 more5 hr

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.