Alert archive / Texas / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 4, NWS Austin/San Antonio, TX

February 15, 1993Lavaca County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 15, 1993, 8:41 PM CST for Lavaca County, Texas. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Feb 15, 1993, 8:41 PM CST (02:41 UTC)
Expired
Feb 15, 1993, 9:15 PM CST
In force
34 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Lavaca County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 2.7 hours before the alert went out and 188 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, Corpus Christi, TX at 00:00Z on 1993-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1626 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, Corpus Christi, TX at 00:00Z on 1993-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939587897Sfc1 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
1626 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1190 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
1.2
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KVCT 160247
SVRVCT
TXC285-160315-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE VICTORIA TX
841 PM CST MON FEB 15 1993
 
THE NATIONAL WEATHER SERVICE IN VICTORIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  915 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH CENTRAL TEXAS
 
   ...NORTHERN LAVACA COUNTY
 
AT 843 PM CST VICTORIA RADAR SHOWED A SEVERE THUNDERSTORM 5 MILES
NORTHWEST OF MOULTON MOVING EAST AT 45 MILES AN HOUR. LARGE HAIL
WAS INDICTED BETWEEN FLATONIA AND MOULTON.
 
 
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGInNG WEATHER CONDITIONS.
 
IF THREATING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE
IMMEDIATELY...YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY
TO RELAY YOUR SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL
WEATHER SERVICE OFFICE.

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, Feb 15, 6:38 PM CST, 2 hours 3 minutes before
TXZ030-035>037-160145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
637 PM CST MON FEB 15 1993

...TORNADO WATCH REMAINS IN EFFECT FOR AREAS ALONG AND TO THE
   EAST OF INTERSTATE 35...

...AT 633 PM...THUNDERSTORMS WITH VERY HEAVY RAINFALL...GUSTY WINDS
AND SMALL HAIL WERE FROM BLANCO NORTHEAST THROUGH LAKE TRAVIS TO
THORNDALE AND NEAR COLLEGE STATION.  THESE THUNDERSTORMS WERE
MOVING TO THE EAST AT 45 MILES AN HOUR.

THERE HAVE BEEN NUMEROUS REPORTS OF SMALL HAIL...DANGEROUS LIGHTNING
AND TORRENTIAL RAINFALLS.  4.10 INCHES OF RAIN FELL BETWEEN 4 AND 6 PM
AT BRAKER AND KRAMER LANE.  BECAUSE THESE STORMS ARE REPEATEDLY
TRACKING OVER THE SAME AREAS...LOW LYING FLOODING IS L
IKELY.  MOTORIST
SHOULD NOT CROSS ANY FLOODED ROADWAYS...AND SLOW DOWN SHOULD HIGH
WATER BE ENCOUNTERED WITHOUT WARNING.
.
STAY TUNED TO NOAA WEATHER RADIO AND COMMERCIAL TV/RADIO FOR
LATER STATEMENTS OR POSSIBLE WARNINGS.
WH
Special weather statement, Feb 15, 7:11 PM CST, 1 hour 30 minutes before
TXZ035-039>040-160300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
710 PM CST MON FEB 15 1993

...TORNADO WATCH REMAINS IN EFFECT THIS EVENING FOR GUADALUPE COUNTY...

SHOWERS AND THUNDERSTORMS...SOME STRONG...WERE CONTINUING ACROSS EASTERN
PORTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING.  AT 710
PM CST...THE STRONGEST THUNDERSTORMS WERE LOCATED ALONG THE KENDALL AND
COMAL COUNTY LINE...NEAR NEW BRAUNFELS.  MOVEMENT WAS EAST AND NORTHEAST
AT 40 MILES AN HOUR.

RESIDENTS IN THE PATH OF THESE THUNDERSTORMS CAN EXPECT TO EXPERIENCE
STRONG AND GUSTY WIND...FREQUENT LIGHTNING...HAIL AND BRIEF HEAVY RAINFALL.

WHILE THESE THUNDERSTORMS WERE NOT PRODUCING SEVERE WEATHER...RESIDENTS
OF SOUTH CENTRAL TEXAS ARE REMINDED THAT A TORNADO WATCH REMAINS IN EFFECT
UNTIL 11 PM FOR GUADALUPE COUNTY.  CONDITIONS ARE FAVORABLE FOR A FEW OF
THESE THUNDERSTORMS TO INTENSIFY AND PRODUCE SEVERE WEATHER...PROBABLY IN
THE FORM OF STRONG AND DAMAGING STRAIGHT-LINE WIND.  HOWEVER...TORNADOES
AND LARGE HAIL ARE POSSIBLE.

CONTINUE TO KEEP A CLOSE WATCH ON WEATHER CONDITIONS FOR THE NEXT FEW HOURS.
STAY TUNED TO COMMERCIAL RADIO AND TELEVISION OR NOAA WEATHER RADIOJ FOR
UPDATED INFORMATION.
Special weather statement, Feb 15, 7:14 PM CST, 1 hour 27 minutes before
TXZ030-035>037-160245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
715 PM CST MON FEB 15 1993

...TORNADO WATCH REMAINS IN EFFECT FOR AREAS ALONG AND TO THE
   EAST OF INTERSTATE 35...

AT 713 PM...THUNDERSTORMS WERE FROM SOUTH OF DRIPPING SPRINGS
NORTHEAST ACROSS AUSTIN TO ROCKDALE.  A VERY INTENSE THUNDERSTORM
WAS JUST SOUTHWEST OF OAK HILL AND WILL BE AFFECTING SOUTHERN
TRAVIS COUNTY BETWEEN NOW AND 745 PM.  STRONG GUSTY WINDS...
MARBLE SIZED HAIL...FREQUENT LIGHTNING AND TORRENTIAL RAINS
CAN BE EXPECTED WITH THIS STORM.

THE THUNDERSTORMS WERE MOVING TO THE EAST AT 45 MILES AN HOUR.

STAY TUNED TO NOAA WEATHER RADIO AND COMMERCIAL TV/RADIO FOR LATER
UPDATES OR POSSIBLE WARNINGS.
WH
Special weather statement, Feb 15, 8:06 PM CST, 35 minutes before
TXZ030-035>037-160300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
805 PM CST MON FEB 15 1993

...TORNADO WATCH CANCELLED FOR WILLIAMSON...TRAVIS...LEE...MILAM..
BURLESON...BASTROP AND CALDWELL COUNTIES...
...TORNADO WATCH REMAINS IN EFFECT FOR FAYETTE COUNTY UNTIL 11 PM...

AT 800 PM...A VERY INTENSE THUNDERSTORM WAS JUST EAST OF SAN MARCOS.
THIS STORM PRODUCED MARBLE SIZED HAIL AS IT PASSED THROUGH SAN MARCOS
AROUND 750 PM.  OTHER VERY STRONG THUNDERSTORMS EXTENDED FROM 8 MILES
NORTHWEST OF LA GRANGE TO NAVASOTA.

OTHER SHOWERS AND ISOLATED THUNDERSTORMS COVERED MUCH OF THE NORTHERN
HILL COUNTRY AND CENTRAL TEXAS ALONG AND TO THE EAST OF INTERSTATE 35.
THE ACTIVITY WAS MOVING TO THE EAST AT 45 MILES AN HOUR.

THE GREATEST THREAT FOR SEVERE WEATHER HAS SHIFTED INTO EAST AND
SOUTHEAST TEXAS.  PERSONS IN CALDWELL...AND ESPECIALLY FAYETTE COUNTY
SHOULD STAY ALERT FOR THE NEXT TWO HOURS AS STONG THUNDERSTORMS ARE
STILL IN THESE COUNTIES.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
WH
Special weather statement, Feb 15, 8:12 PM CST, 29 minutes before
TXZ030-035>037-160300-

SPECIAL WEATHER STATEMENT...UPDATED
NATIONAL WEATHER SERVICE AUSTIN TX
810 PM CST MON FEB 15 1993

...TORNADO WATCH HAS BEEN CANCELLED FOR ALL COUNTIES...

AT 800 PM...A VERY INTENSE THUNDERSTORM WAS JUST EAST OF SAN MARCOS.
THIS STORM PRODUCED MARBLE SIZED HAIL AS IT PASSED THROUGH SAN MARCOS
AROUND 750 PM.  OTHER VERY STRONG THUNDERSTORMS EXTENDED FROM 8 MILES
NORTHWEST OF LA GRANGE TO NAVASOTA.

OTHER SHOWERS AND ISOLATED THUNDERSTORMS COVERED MUCH OF THE NORTHERN
HILL COUNTRY AND CENTRAL TEXAS ALONG AND TO THE EAST OF INTERSTATE 35.
THE ACTIVITY WAS MOVING TO THE EAST AT 45 MILES AN HOUR.

THE GREATEST THREAT FOR SEVERE WEATHER HAS SHIFTED INTO EAST AND
SOUTHEAST TEXAS.  PERSONS IN CALDWELL...AND ESPECIALLY FAYETTE COUNTY
SHOULD CONTINUE TO MONITOR WEATHER CONDITIONS FOR THE NEXT 1 TO 2 HOURS
AS STRONG THUNDERSTORMS REMAIN IN THOSE COUNTIES.
WH
Special weather statement, Feb 15, 8:25 PM CST, 16 minutes before
TXZ035-039>040-160330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
825 PM CST MON FEB 15 1993

...TORNADO WATCH FOR GUADALUPE COUNTY HAS BEEN CANCELLED...

THE TORNADO WATCH ISSUED EARLIER FOR PERSONS IN GUADALUPE COUNTY HAS BEEN
CANCELLED.  THE STRONG THUNDERSTORMS THAT MOVED ACROSS PORTIONS OF THE HILL
COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING HAVE MOVED EAST INTO SOUTHEAST
TEXAS.  ONLY LIGHT SHOWERS REMAIN...BUT THEY TOO SHOULD MOVE OUT OF THE
AREA IN THE NEXT HOUR OR SO.

NO REPORTS OF SEVERE WEATHER WERE RECEIVED FROM COUNTIES ACROSS THE HILL
COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 15, 8:40 PM CSTSevere Thunderstorm WarningEWXFayette35 min
Feb 15, 9:45 PM CSTSevere Thunderstorm WarningEWXDeWitt30 min

Nearby

Severe Thunderstorm Warnings in Texas, 1993Every severe thunderstorm warning in 1993

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.