Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 24, NWS Austin/San Antonio, TX

April 26, 1990Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 26, 1990, 12:15 AM CDT for Real County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Apr 26, 1990, 12:15 AM CDT (05:15 UTC)
Expired
Apr 26, 1990, 1:15 AM CDT
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Real County, TX

The radar

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

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.3 hours before the alert went out and 111 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 00:00Z on 1990-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2382 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 00:00Z on 1990-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
2382 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1159 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSAT 260516
SVRSAT
TXC385-260615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1215 AM CDT THU APR 26 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  115 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH TEXAS
          ...REAL
 
NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM NEAR
CAMP WOOD AT 1213 PM MOVING TO THE NORTHEAST AT 15 MPH. THIS STORM WAS
PART OF A SYSTEM THAT HAD ALREADY PRODUCED HAIL OF 1 1/2 INCH DIAMETER
AND WIND GUSTS TO OVER 100 MPH EARLIER THIS EVENING.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
 
WHEN A THUNDERSTORM THREATENS...SEEK SHELTER INSIDE A HOME OR
BUILDING AWAY FROM DOORS AND WINDOWS.  REFRAIN FROM USING ELECTRICAL
APPLIANCES.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO WARNING.

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 25, 7:05 PM CDT, 5 hours 10 minutes before
TXZ034-035-038-039-054-260100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
705 PM CDT WED APR 25 1990

...A TORNADO WATCH IS IN EFFECT FOR  EDWARDS   KERR   BANDERA   REAL
KINNEY  AND  UVALDE   COUNTIES UNTIL 900 PM TONIGHT...
...A FLASH FLOOD WATCH IS IN EFFECT FOR KENDALL COUNTY UNTIL MIDNIGHT...

SCATTERED SHOWERS AND THUNDERSTORMS WERE INDICATED BY NATIONAL WEATHER
SERVICE RADAR AT 700 PM TONIGHT OVER WESTERN VAL VERDE COUNTY...WEST OF
THE CITY OF DEL RIO.  WIDELY SCATTERED SHOWERS WERE LOCATED IN AN AREA
FROM HONDO TO LEAKEY TO JUNCTION.  ALL ACTIVITY WAS MOVING TO THE NORTH
AT 25 MPH.

A THREAT OF SEVERE THUNDERSTORMS...WITH POSSIBLE TORNADOES...AND HEAVY
RAIN EXISTS TONIGHT OVER A LARGE PORTION OF THE TEXAS HILL COUNTRY...
EDWARDS PLATEAU AND ADJACENT SECTIONS OF SOUTH CENTRAL TEXAS.  PERSONS
IN AND NEAR THE THREAT AREA ARE URGED TO KEEP AWARE OF THIS POSSIBILITY
AND MONITOR THE LATEST WEATHER ADVISORIESK AND STATEMENTS.
Special weather statement, Apr 25, 7:09 PM CDT, 5 hours 6 minutes before
TXZ054-260200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
710 PM CDT WED APR 25 1990

...A TORNADO WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL 900 PM CDT
TONIGHT...

AT 705 PM CDT RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN FROM 10
MILES WEST TO 50 MILES NORTHWEST OF DEL RIO. THESE STORMS WERE MOVING TO
THE NORTH AT 25 MPH.

DO NOT STAY IN A VEHICLE OR MOBILE HOME AS THEY ARE EASILY TOSSED AND
ROLLED BY HIGH WINDS. BOATERS ON LAKE AMISTAD SHOULD SEEK SAFE HARBOR
NOW. REMEMBER...MOST WEATHER RELATED DEATHS IN SOUTH TEXAS ARE DUE TO
LIGHTNING AND FLASH FLOODING.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES
AND SEVERE THUNDERSTORMS IN AND PCLOSE TO THE WATCH AREA. PEOPLE IN THESE
AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND
LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 25, 7:44 PM CDT, 4 hours 31 minutes before
TXZ030-034-260230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
740 PM CDT TUE APR 25 1990

...TORNDAO WATCH IS IN EFFECT UNTIL 9 PM THIS EVENING FOR GILLESPIE
...LAMPASAS...MILLS...SAN SABA...BURNET AND LLANO COUNTIES.

...FLASH FLOOD WATCH IS IN EFFECT FOR MOST OF THE CENTRAL TEXAS
   AREA.  THIS INCLUDES THE AUSTIN AND SURROUNDING AREAS.

WEATHER RADAR INDICATED SCATTERED STRONG THUNDERSTORMS AND HEAVY
RAIN FROM NEAR SAN SABA ACROSS MILLS COUNTY TO WEST OF STEPHENVILLE.
ALSO WEST OF MENARD AND BRADY.  OTHER WIDLY SCATTERED LIGHT TO
MODERATE SHOWERS WAS OVER THE CENTRAL TEXAS AREA WITHIN 50 TO 75
MILES OF AUSTIN.

THUNDERSTORMS WERE MOVING NORTH AT NEAR 25 MPH.
Special weather statement, Apr 25, 9:33 PM CDT, 2 hours 42 minutes before
TXZ030-034>036-260430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
925 PM CDT WED APR 25 1990

...TORNDAO WATCH IS NOW IN EFFECT TILL 3 AM THURSDAY MORNING FOR...
MILLS...SAN SABA...LAMPASAS...GILLESPIE...LLANO...BURNET AND BLANCO.

...FLASH FLOOD WATCH THROUGH TONIGHT FOR THE HILL COUNTRY
   FOR THE ABOVE COUNTIES.

WEATHER RADAR SHOWS STRONG THUNDERSTORMS WITH HEAVY
RAIN NEAR COMANCHE AND WEST OF BRADY.

OTHER SHOWERS AND THUNDERSTORMS WERE FOUND IN A BAND 50 MILES WIDE
FROM DEL RIO TO 90 MILES NORTHWEST OF AUSTIN TO FORT WORTH. A FEW SCATTERED
LIGHT RAIN SHOWERS ARE LOCATED FROM BRIGGS TO NORTH OF FORT HOOD.

THUNDERSTORMS WERE MOVING NORTH AT NEAR 25 MPH.
THESE THUNDERSTORMS MAY MOVE INTO THE AUSTIN AREA VERY LATE TONIGHT.

EVERYONE IN AND NEAR THE TORNADO AND FLASH FLOOD WATCH AREAS SHOULD
KEEP ALERT TO THE LATEST WEATHER BULLETINS AND ADVISORIES WHILE THE THREAT
OF SEVERE WEATHER AND FLOODING PERSISTS.
Special weather statement, Apr 25, 11:39 PM CDT, 36 minutes before
TXZ030-034>036-260630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1135 PM CDT WED APR 25 1990

...TORNDAO WATCH IS IN EFFECT TILL 3 AM THURSDAY MORNING FOR...
MILLS...SAN SABA...LAMPASAS...GILLESPIE...LLANO...BURNET AND BLANCO.

...FLASH FLOOD WATCH THROUGH TONIGHT FOR THE HILL COUNTRY
   FOR THE ABOVE COUNTIES.

AT 1120 PM WEATHER RADAR SHOWS STRONG THUNDERSTORMS WITH HEAVY
RAIN NEAR BROWNWOOD AND WEST OF SAN SABA.

OTHER SHOWERS AND THUNDERSTORMS WERE FOUND IN A BAND 50 MILES WIDE
FROM DEL RIO TO 90 MILES NORTHWEST OF AUSTIN TO FORT WORTH.

LIGHT RAIN AND A FEW RAIN SHOWERS ARE FOUND FROM AUSTIN TO NEW BRAUNFELS
...VICTORIA...LA GRANGE...COLLEGE STATION...GEORGETOWN AND BACK TO AUSTIN.
MOVEMENT OF THE PRECIPITAION IS TO THE NORTHNORTHEST AT 25 MPH.

PEOPLE IN MILLS...SAN SABA...LLANO AND GILLESPIE COUNTIES SHOULD
KEEP ALERT TO THE LATEST WEATHER BULLETINS AND ADVISORIES FOR THE NEXT
FEW HOURS DUE TO STORMS APvPROACHING THESE COUNTIES.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 8:35 PM CDTSevere Thunderstorm WarningEWXVal Verde55 min
Apr 25, 8:44 PM CDTSevere Thunderstorm WarningEWXKinney61 min
Apr 25, 9:34 PM CDTSevere Thunderstorm WarningEWXKinney56 min
Apr 25, 9:41 PM CDTTornado WarningEWXKinney64 min
Apr 25, 9:45 PM CDTTornado WarningEWXVal Verde55 min
Apr 25, 10:42 PM CDTSevere Thunderstorm WarningEWXKinney63 min
Apr 25, 11:25 PM CDTFlash Flood WarningEWXKinney3 hr
Apr 26, 5:18 AM CDTSevere Thunderstorm WarningEWXBexar, Comal, Guadalupe42 min
Apr 26, 5:54 AM CDTSevere Thunderstorm WarningEWXHays66 min
Apr 26, 6:00 AM CDTSevere Thunderstorm WarningEWXComal, Guadalupe30 min
Apr 26, 6:52 AM CDTFlash Flood WarningEWXMills2 hr
Apr 26, 9:03 AM CDTFlash Flood WarningEWXMills3 hr
Apr 26, 12:05 PM CDTTornado WarningEWXVictoria25 min
Apr 26, 12:33 PM CDTTornado WarningEWXVictoria57 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; the sounding from the Mesonet's radiosonde archive.