Alert archive / Texas / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 48, NWS Austin/San Antonio, TX

April 16, 1992Medina County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 16, 1992, 6:51 PM CDT for Medina County, Texas. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Apr 16, 1992, 6:51 PM CDT (23:51 UTC)
Expired
Apr 16, 1992, 8:00 PM CDT
In force
69 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Medina County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 11.9 hours before the alert went out and 168 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 1992-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1351 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 1992-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
1351 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
604 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
102 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 162356
SVRSAT
TXC325-170100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
651 PM CDT THU APR 16 1992
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 8 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH TEXAS
 
   ...EASTERN MEDINA COUNTY
 
AT 650 PM CDT...WEATHER SERVICE RADARS INDICATED A SEVERE THUNDERSTORM
ON THE BEXAR-MEDINA COUNTY LINE.  THIS STORM HAS SHOWN LITTLE MOVEMENT
DURING THE PAST HOUR.  INDICATIONS ARE THE STORM IS BUILDING TOWARD
THE WEST INTO EASTERN MEDINA COUNTY.  PERSONS BETWEEN SAN ANTONIO AND
HONDO...ESPECIALLY RESIDENTS AND MOTORISTS IN AND AROUND
CASTROVILLE...SHOULD BE ALERT FOR LARGE HAIL...FREQUENT LIGHTNING AND
LOCALLY HEAVY RAIN AND FLOODING FROM THIS STORM.
 
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 OCCUR WITH ANY THUNDERSTORM.
 
THIS IS A SLOW MOVING THUNDERSTORM AND IT MAY CAUSE FLOODING OF
SMALL STREAMS...LOW AREAS...AND LOW WATER CROSSINGS.

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, Apr 16, 5:01 PM CDT, 1 hour 50 minutes before
TXZ030-034-162200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
501 PM CDT THUR APR 16 1992

...SEVERE THUNDERSTORM WARNING FOR EASTERN SAN SABA COUNTY HAS EXPIRED...

AT 500 PM CDT AUSTIN RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAINS
FROM EVANT SOUTHWEST THROUGH LAMPASAS COUNTY TO CHEROKEE AND MASON.
THESE THUNDERSTORMS WERE MOVING EASTWARD AT 30 MILES AN HOUR.

THESE THUNDERSTORMS WILL LIKELY PRODUCE BRIEF HEAVY RAINS...GUSTY1 WINDS...
SMALL HAIL...AND DANGEROUS LIGHTNING.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV/RADIO FOR THE LATEST
WEATHER INFORMATION AND POSSIBLE WARNINGS.
Special weather statement, Apr 16, 5:12 PM CDT, 1 hour 39 minutes before
TXZ039-170000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
510 PM CDT THU APR 16 1992

HONDO RADAR SHOWS SEVERAL SHOWERS AND A FEW THUNDERSTORMS BETWEEN
CASTROVILLE AND SAN ANTONIO WITH MOVEMENT TOWARD THE EAST AT 15 MPH
TOWARD THE WESTERN SECTIONS OF SAN ANTONIO AND BEXAR COUNTY.

SINCE THE ACTIVITY WILL BE AFFECTING RUSH-HOUR TRAFFIC...MOTORISTS
SHOULD BE ESPECIALLY AWARE AND REACT ACCORDINGLY.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO OCCUR
INTO THE MID AND LATE EVENING HOURS IN AND AROUND SAN ANTONIO AND
THE ADJACENT HILL COUNTRY.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO
PLEASE STAY TUNED.
Special weather statement, Apr 16, 5:28 PM CDT, 1 hour 23 minutes before
TXZ039-170000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
525 PM CDT THU APR 16 1992

...PEA-SIZED HAIL REPORTED AT SEA WORLD...

HONDO RADAR SHOWS SEVERAL SHOWERS AND A FEW THUNDERSTORMS BETWEEN
CASTROVILLE AND SAN ANTONIO WITH MOVEMENT TOWARD THE EAST AT 15 MPH
TOWARD THE WESTERN SECTIONS OF SAN ANTONIO AND BEXAR COUNTY.

DURING THE PAST FEW MINUTES...SEA WORLD OF TEXAS REPORTED PEA-SIZED
HAIL FROM THESE STORMS ALONG WITH BRIEF HEAVY RAIN.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO OCCUR
INTO THE MID AND LATE EVENING HOURS IN AND AROUND SAN ANTONIO AND
THE ADJACENT HILL COUNTRY.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO
PLEASE STAY TUNED.
Special weather statement, Apr 16, 5:46 PM CDT, 1 hour 5 minutes before
TXZ054-170045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
550 PM CDT THU APR 16 1992

AT 545 PM CDT RADAR INDICATED THUNDERSTORMS 20 MILES NORTH OF DEL RIO.
THESE STORMS WERE MOVING TO THE EAST AT 15 MPH.

SMALL HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS
LIGHTNING ARE POSSIBLE WITH THESE STORMS.
Special weather statement, Apr 16, 5:48 PM CDT, 1 hour 3 minutes before
TXZ054-170045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
550 PM CDT THU APR 16 1992

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL
MIDNIGHT CDT...

AT 545 PM CDT RADAR INDICATED THUNDERSTORMS 20 MILES NORTH OF DEL RIO.
THESE STORMS WERE MOVING TO THE EAST AT 15 MPH.

SMALL HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS
LIGHTNING ARE POSSIBLE WITH THESE STORMS.
Special weather statement, Apr 16, 6:08 PM CDT, 43 minutes before
TXZ039-170100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
605 PM CDT THU APR 16 1992

HONDO RADAR CONTINUES TO SHOW SHOWERS AND A FEW THUNDERSTORMS ON THE
WEST SIDE OF SAN ANTONIO WITH MOVEMENT TOWARD THE EAST AT 15 MPH.

DURING THE PAST 45 MINUTES...SEA WORLD OF TEXAS REPORTED PEA-SIZED
HAIL FROM THESE STORMS ALONG WITH BRIEF HEAVY RAIN.

DUE TO THE SLOW MOVEMENT OF THESE SHOWERS...LOCALIZED FLOODING OF LOW-
LYING AREAS AND LOW-WATER CROSSINGS MAY OCCUR.  LEON CREEK ON THE WEST
SIDE OF SAN ANTONIO AND BEXAR COUNTY ALSO COULD BE AFFECTED BY RISING
WATER FROM RUNOFF.

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO OCCUR
INTO THE MID AND LATE EVENING HOURAS IN AND AROUND SAN ANTONIO AND
THE ADJACENT HILL COUNTRY.

ANOTHER THUNDERSTORM IS INDICATED NEAR LEAKEY IN REAL COUNTY.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE
STAY TUNED.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 4:15 PM CDTSevere Thunderstorm WarningEWXSan Saba45 min
Apr 16, 6:15 PM CDTSevere Thunderstorm WarningEWXBexar60 min
Apr 16, 6:39 PM CDTSevere Thunderstorm WarningEWXBandera, Kendall66 min

Nearby

Severe Thunderstorm Warnings in Texas, 1992Every severe thunderstorm warning in 1992

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.