Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 167, NWS Austin/San Antonio, TX

September 3, 1997Maverick County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 3, 1997, 3:43 PM CDT for Maverick County, Texas. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 3, 1997, 3:43 PM CDT (20:43 UTC)
Expired
Sep 3, 1997, 4:30 PM CDT
In force
47 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Maverick County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 8.7 hours before the alert went out and 86 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 12:00Z on 1997-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 607 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 12:00Z on 1997-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
607 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
1696 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 032042 RRA
SVRSAT
TXC323-032130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
343 PM CDT WED SEP 3 1997
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...SOUTHERN MAVERICK COUNTY
 
AT 340 PM CDT DOPPLER RADAR INDICATED A POSSIBLY SEVERE THUNDERSTORM
10 MILES EAST OF EL INDIO MOVING TO THE WEST AT 15 TO 20 MPH AND SHOULD
MOVE OVER OR JUST SOUTH OF EL INDIO SHORTLY AFTER 400 PM.
 
ANOTHER STORM WAS APPROACHING EAGLE PASS FROM THE NORTHWEST.
 
BOTH OF THESE STORMS COULD PRODUCE STRONG DAMAGING WINDS.
 
SEVERE THUNDERSTORM WINDS CAN REACH SPEEDS OVER 60 MPH.  THESE WINDS
BLOW DOWN TREES...POWER LINES...AND SEVERELY DAMAGE MOBILE HOMES...
SOMETIMES BUILDINGS.  VERY LARGE HAIL CAN INJURE ANYONE CAUGHT
OUTSIDE.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 3, 6:47 PM CDTSevere Thunderstorm WarningEWXWilson58 min
Sep 3, 6:50 PM CDTSevere Thunderstorm WarningEWXComal, Kendall55 min

Nearby

Severe Thunderstorm Warnings in Texas, 1997Every severe thunderstorm warning 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.