Alert archive / Texas / Tornado Watches in 1997

Tornado Watch 755

October 23, 199729 counties in Texas

The Storm Prediction Center issued this tornado watch at Oct 23, 1997, 9:15 AM CDT for 29 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Oct 23, 1997, 9:15 AM CDT (14:15 UTC)
Expired
Oct 23, 1997, 3:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 29 counties

Anderson County, TX, Bastrop County, TX, Bell County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Coryell County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Grimes County, TX, Guadalupe County, TX, Hays County, TX, Henderson County, TX, Houston County, TX, Lampasas County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, McLennan County, TX, Milam County, TX, Robertson County, TX, Travis County, TX, Walker County, TX, Washington County, TX, Williamson County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Oct 23, 9:45 AM CDTSevere Thunderstorm WarningFWDFalls60 min
Oct 23, 10:24 AM CDTSevere Thunderstorm WarningFWDLimestone66 min
Oct 23, 2:58 PM CDTTornado WarningHGXGrimes, Walker62 min

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 2.3 hours before the alert went out and 211 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, Fort Worth, TX at 12:00Z on 1997-10-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Fort Worth, TX at 12:00Z on 1997-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

698 
WWUS9 KMKC 231343
SEL5  
MKC WW 231343
TXZ000-232000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 755
STORM PREDICTION CENTER NORMAN OK
843 AM CDT THU OCT 23 1997

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   CENTRAL AND EASTERN TEXAS                              

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 915 AM UNTIL 300
PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 35 MILES WEST OF AUSTIN TEXAS TO 80 MILES
NORTHEAST OF COLLEGE STATION TEXAS.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.


DISCUSSION...CLUSTER OF SEVERE THUNDERSTORMS HAS DEVELOPED NORTH OF
SAN ANTONIO...AND SHOULD TRACK NORTHEASTWARD THROUGH THE MORNING
HOURS.  VERY STRONG SUB-TROPICAL JET AND FAVORABLE LOW LEVEL SHEAR
PROFILES INDICATE A THREAT OF A FEW SUPERCELLS/TORNADOES BY LATE
MORNING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 24040.

...HART

311,0981 322,0952 302,0952 291,0981

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 23, 2:15 PM CDTTornado WatchSPCAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 18 more6 hr
Oct 23, 2:45 PM CDTTornado WatchSPCAnderson, Angelina, Bell, Bosque, Cherokee, Coryell and 27 more5 hr

Nearby

Tornado Watches in Texas, 1997Every tornado watch in 1997

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.