Alert archive / Texas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 161, NWS Austin/San Antonio, TX

July 6, 1997Burnet County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 6, 1997, 6:07 PM CDT for Burnet County, Texas. It was in force for 68 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 6, 1997, 6:07 PM CDT (23:07 UTC)
Expired
Jul 6, 1997, 7:15 PM CDT
In force
68 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Burnet County, TX

What was reported inside it

TimeReportWhereRemark
Jul 6, 6:25 PM CDTThunderstorm Wind 52Briggs, TXObserver reports wind gusts in excess of 52 knots.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.1 hours before the alert went out and 242 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 1997-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1513 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, Fort Worth, TX at 12:00Z on 1997-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
1513 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
620 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
67 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 062308 RRA
SVRSAT
TXC053-070015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
607 PM CDT SUN JUL 6 1997
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...BURNET COUNTY
 
AT 606 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED
ALONG HWY 183 ABOUT 10 MILES NORTHWEST OF BRIGGS IN NORTHEAST BURNET
COUNTY MOVING SOUTH AT 10 MPH.
 
PERSONS IN THE PATH OF THIS STORM CAN EXPECT 1 INCH HAIL AND GUSTY
THUNDERSTORM 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.
 
PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT TO THE POSSIBILITY
OF LARGE HAIL AND DAMAGING WINDS.  FREQUENT LIGHTNING AND LOCALLY
HEAVY RAIN CAN ALSO OCCUR WITH SEVERE THUNDERSTORMS...FLOODING SMALL
STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.
 
IF YOU SEE SEVERE WEATHER TAKING PLACE...CALL YOUR REPORT TO
THE NEAREST LAW ENFORCEMENT AGENCY FOR IMMEDIATE RELAY TO THE
NATIONAL WEATHER SERVICE.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 6, 5:58 PM CDT, 9 minutes before
TXZ171>173-183>194-202>209-217>225-228-071100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SUN JUL 6 1997

HAZARDOUS WEATHER IS NOT EXPECTED TODAY OR TONIGHT.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS EVENING
ALONG AND EAST OF A LINE FROM JUNCTION TO SAN ANTONIO TO KARNES CITY.

ISOLATED AFTERNOON AND EARLY EVENING SHOWERS AND THUNDERSTORMS ARE
EXPECTED MONDAY ALONG AND NORTHEAST OF A LINE FROM BURNET TO SAN
MARCOS TO SCHULENBURG.

A STATIONARY FRONT AND NUMEROUS OUTFLOW BOUNDARIES LAY ACROSS THE
EASTERN PORTIONS OF THE HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS.
AN UPPER LEVEL DISTURBANCE IS MOVING ACROSS NORTHERN TEXAS.  THESE IN
COMBINATION WILL PRODUCE SHOWERS AND THUNDERSTORMS.  THEY WILL BE
WIDELY SCATTERED THIS EVENING AND ISOLATED MONDAY AFTERNOON AND EARLY
EVENING.  SOME OF THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF
PRODUCING BRIEF HEAVY RAINFALL AND GUSTY WINDS.

RAINFALL AMOUNTS FROM SHOWERS AND THUNDERSTORMS THIS EVENING AND
AGAIN MONDAY AFTERNOON AND EARLY EVENING WILL AVERAGE LESS THAN ONE
QUARTER INCH WITH ISOLATED ONE INCH AMOUNTS POSSIBLE.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.
Special weather statement, Jul 6, 6:00 PM CDT, 7 minutes before
TXZ171>173-183>194-202>209-217>225-228-071100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 PM CDT SUN JUL 6 1997

HAZARDOUS WEATHER IS NOT EXPECTED TODAY OR TONIGHT.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THIS EVENING
ALONG AND EAST OF A LINE FROM JUNCTION TO SAN ANTONIO TO KARNES CITY.

ISOLATED AFTERNOON AND EARLY EVENING SHOWERS AND THUNDERSTORMS ARE
EXPECTED MONDAY ALONG AND NORTHEAST OF A LINE FROM BURNET TO SAN
MARCOS TO SCHULENBURG.

A STATIONARY FRONT AND NUMEROUS OUTFLOW BOUNDARIES LAY ACROSS THE
EASTERN PORTIONS OF THE HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS.
AN UPPER LEVEL DISTURBANCE IS MOVING ACROSS NORTHERN TEXAS.  THESE IN
COMBINATION WILL PRODUCE SHOWERS AND THUNDERSTORMS.  THEY WILL BE
WIDELY SCATTERED THIS EVENING AND ISOLATED MONDAY AFTERNOON AND EARLY
EVENING.  SOME OF THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF
PRODUCING BRIEF HEAVY RAINFALL AND GUSTY WINDS.

RAINFALL AMOUNTS FROM SHOWERS AND THUNDERSTORMS THIS EVENING AND
AGAIN MONDAY AFTERNOON AND EARLY EVENING WILL AVERAGE LESS THAN ONE
QUARTER INCH WITH ISOLATED ONE INCH AMOUNTS POSSIBLE.

THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF
THE ZONE FORECASTS...SHORT TERM FORECAST...WATCHES...WARNINGS AND
ADVISORIES.  THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED
ONLY IF UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED
HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:32 PM CDTSevere Thunderstorm WarningEWXWilliamson58 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.