Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 85, NWS Austin/San Antonio, TX

September 1, 1990Atascosa County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 1, 1990, 3:47 PM CDT for Atascosa County, Texas. It was in force for 43 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
Sep 1, 1990, 3:47 PM CDT (20:47 UTC)
Expired
Sep 1, 1990, 4:30 PM CDT
In force
43 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Atascosa County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Sep 1, 3:50 PM CDTThunderstorm Wind 0Atascosa, TX

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 8.8 hours before the alert went out and 174 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 12:00Z on 1990-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1209 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 12:00Z on 1990-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
1209 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1089 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 012048
SVRSAT
TXC013-012130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
347 PM CDT SAT SEP 1 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...ATASCOSA
 
NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS OVER MUCH OF ATASCOSA COUNTY MOVING TO THE SOUTH AND
SOUTHWEST AT 15 MILES AN HOUR.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
 
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA0 WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER EVENT.

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, Sep 1, 1:01 PM CDT, 2 hours 46 minutes before
TXZ054-011900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
101 PM CDT SAT SEP 1 1990

AT 1255 PM CDT RADAR INDICATED STRONG THUNDERSTORMS MOVING INTO EASTERN
VAL VERDE COUNTY AND WERE LOCATED FROM 20 MILES NORTHEAST OF DEL RIO TO
LOMA ALTA. MOVEMENT WAS TO THE SOUTHWEST AT 20 MPH.

HEAVY RAIN...SMALL HAIL...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS ARE LIKELY WITH THESE STORMS.

THESE STORMS WERE MOVING TOWARDS LAKE AMISTAD. BOATERS AND FISHERMEN ON
LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE PREPARED TO MOVE QUICKLY
TO SHORE AND AWAY FROM THE WATER IF LIGHTNING IS SEEN...THUNDER IS HEARD
OR WINDS BEGIN INCREASING.

MOTORISTS TRAVELING IN EASTERN VAL VERDE C;OUNTY SHOULD EXERCISE
CAUTION AS WET AND SLIPPERY ROADS ALONG WITH REDUCED VISIBILITY IN
THE SHOWERS...COULD PRESENT A DRIVING HAZARD.
Special weather statement, Sep 1, 1:41 PM CDT, 2 hours 6 minutes before
TXZ030-034>037-012030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
140 PM CDT SAT SEP 01 1990

...THUNDERSTORMS DEVELOPING RADIDLY OVER CENTRAL AND SOUTH TEXAS...

AT 130 PM RADAR INDICATED THUNDERSTORMS FROM HONDO...SAN ANTONIO...
GONZALES TO NORTH OF THE HOUSTON AREA. THE STRONGEST STORMS WERE
SOUTH OF SAN ANTONIO AND NEAR WHARTON.

OTHER SCATTERED SHOWERS AND THUNDERSTORMS WERE FOUND FROM RICHLAND
SPRINGS...BROWNWOOD AND STEPHENVILLE.

MOVEMENT OF THE RAIN ACTIVITY WAS TO THE SOUTHWEST AT 15 MPH.

THUNDERSTORMS WILL BEGIN TO DEVELOP WITH IN THE NEXT FEW HOURS OVER
CENTRAL TEXAS. PERSONS CAMPING...BOATING OR PLANNING OUTDOOR ACTIVITIES
SHOULD KEEP AN EYE FOR THE SKY. r AS THESE STROMS ARE CAPABLE OF PRODUCING
VERY STRONG AND GUSTY WIND...FREQUENT LIGHTNING...HAIL AND BRIEF HEAVY RAIN.
Special weather statement, Sep 1, 1:54 PM CDT, 1 hour 53 minutes before
TXZ054-012200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
155 PM CDT SAT SEP 1 1990

AT 150 PM CDT RADAR INDICATED MODERATE RAINSHOWERS AND
ISOLATED THUNDERSTORMS FROM 10 MILES NORTHEAST OF DEL RIO TO JUST
SOUTHEAST OF JUNO ON HIGHWAY 163. MOVEMENT WAS TO THE SOUTHWEST AT 15
MPH.

HEAVY RAIN...SMALL HAIL...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS ARE LIKELY WITH THESE STORMS.

BOATERS AND FISHERMEN ON LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE
PREPARED TO MOVE QUICKLY TO SHORE AND AWAY FROM THE WATER IF LIGHTNING
IS SEEN...THUNDER IS HEARD OR WINDS BEGIN INCREASING.

MOTORISTS TRAVELING IN EASTERN VAL VERDE COUNTY SHOULD EXERCISE
CAUTION AS WET AND SLIPPERY ROADS ALONG WITH REDUCED VISIBILITY IN
THE SHOWERS...COULD PRESENT A DRIVING HAZARD.
Special weather statement, Sep 1, 2:43 PM CDT, 1 hour 4 minutes before
TXZ054-012200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
250 PM CDT SAT SEP 1 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM CDT FOR
PERSONS IN VAL VERDE COUNTY...

AT 245 PM CDT RADAR INDICATED MODERATE RAINSHOWERS AND
ISOLATED THUNDERSTORMS FROM 10 MILES NORTHEAST OF DEL RIO TO JUST
SOUTHEAST OF JUNO ON HIGHWAY 163. MOVEMENT WAS TO THE SOUTHWEST AT 15
MPH.

HEAVY RAIN...SMALL HAIL...FREQUENT DANGEROUS LIGHTNING AND STRONG GUSTY
WINDS ARE LIKELY WITH THESE STORMS.

BOATERS AND FISHERMEN ON LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE
PREPARED TO MOVE QUICKLY TO SHORE AND AWAY FROM THE WATER IF LIGHTNING
IS SEEN...THUNDER IS HEARD OR WINDS BEGIN INCREASING.

MOTORISTS TRAVELING IN EASTERN VAL VERDE COUNTY SHOULD EXERCISE
CAUTION AS WET AND SLIPPERY ROADS ALONG WITH REDUCED VISIBILITY IN
THE SHOWERS...COULD PRESENT A DRIVING HAZARD.
Special weather statement, Sep 1, 3:11 PM CDT, 36 minutes before
TXZ030-034>037-012130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
310 PM CDT SAT SEP 01 1990

...THUNDERSTORMS INCREASING IN AREAL COVERAGE OVER SOUTH CENTRAL TEXAS...

AT 3 PM...NUMEROUS SHOWERS AND THUNDERSTORMS EXTENDED OVER MUCH OF THE
HILL COUNTRY WEST OF AUSTIN...FROM NORTH OF LAKE BUCHANAN THROUGH MARBLE
FALLS TO NEAR BLANCO.  OTHER THUNDERSTORMS WERE MASSING OVER THE INTERIOR
COASTAL PLAINS FROM COLLEGE STATION PAST LA GRANGE AND SCHULENBURG TO EAST
AND SOUTHEAST OF SAN ANTONIO.

ALL SHOWERS AND THUNDERSTORMS WERE MOVING TO THE SOUTHWEST AT 15 MPH.

PERSONS AROUND CENTRAL AND SOUTH CENTRAL TEXAS SHOULD KEEP A CLOSE CHECK
ON THE SKIES AND BE PREPARED FOR GUSTY WIN:DS AND POSSIBLE HAIL.
GOLF BALL SIZE HAIL WAS REPORTED AT SPICEWOOD...ON THE WEST SIDE OF LAKE
TRAVIS BETWEEN 130 AND 145 PM.  THE SEVERE THUNDERSTORM WATCH REMAINS OUT
FOR SAN SABA...LLANO...GILLESPIE AND BLANCO COUNTIES UNTIL 9 PM CDT.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 7:47 PM CDTSevere Thunderstorm WarningEWXJackson, Victoria58 min
Aug 31, 8:05 PM CDTSevere Thunderstorm WarningEWXDeWitt55 min
Aug 31, 8:06 PM CDTSevere Thunderstorm WarningEWXGonzales, Karnes69 min
Aug 31, 8:42 PM CDTSevere Thunderstorm WarningEWXWilson48 min
Aug 31, 9:41 PM CDTSevere Thunderstorm WarningEWXBexar49 min
Sep 1, 1:29 PM CDTSevere Thunderstorm WarningEWXBexar46 min
Sep 1, 2:12 PM CDTSevere Thunderstorm WarningEWXTravis48 min
Sep 1, 2:14 PM CDTSevere Thunderstorm WarningEWXGonzales, Karnes61 min
Sep 1, 2:41 PM CDTSevere Thunderstorm WarningEWXWilson64 min
Sep 1, 3:14 PM CDTSevere Thunderstorm WarningEWXGonzales46 min
Sep 1, 3:17 PM CDTSevere Thunderstorm WarningEWXBurnet58 min
Sep 1, 3:25 PM CDTTornado WarningEWXBexar50 min
Sep 1, 4:09 PM CDTSevere Thunderstorm WarningEWXHays, Travis66 min
Sep 1, 4:34 PM CDTSevere Thunderstorm WarningEWXLampasas41 min
Sep 1, 5:00 PM CDTSevere Thunderstorm WarningEWXMedina, Uvalde45 min
Sep 1, 5:20 PM CDTSevere Thunderstorm WarningEWXBexar40 min
Sep 1, 5:47 PM CDTSevere Thunderstorm WarningEWXMedina43 min
Sep 1, 6:11 PM CDTSevere Thunderstorm WarningEWXUvalde49 min

Nearby

Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990

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.