Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 121, NWS Austin/San Antonio, TX

May 29, 1987Kinney County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 29, 1987, 12:24 AM CDT for Kinney County, Texas. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
May 29, 1987, 12:24 AM CDT (05:24 UTC)
Expired
May 29, 1987, 1:30 AM CDT
In force
66 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Kinney 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, 5.4 hours before the alert went out and 41 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 1987-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4195 joules per kilogram.LCLEL10008507005003002001001 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 1987-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
4195 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
880 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
2.3
Supercell composite
10.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, May 28, 8:27 PM CDT, 3 hours 57 minutes before
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Special weather statement, May 28, 9:26 PM CDT, 2 hours 58 minutes before
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Special weather statement, May 28, 10:18 PM CDT, 2 hours 6 minutes before
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Special weather statement, May 28, 10:33 PM CDT, 1 hour 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN TX
1030 PM CDT THU MAY 28 1987

...TORNADO WATCH IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES
CENTRAL TEXAS...BURNET...GILLESPIE...LAMPASAS...LLANO...MILLS AND
SAN SABA. THUNDERSTORMS HAVE DECREASED IN INTEMSTY OVER THIS AREA.

AT 1010 PM CDT AUSTIN RADAR SHOWED AN BROAD AREA SHOWERS AND THUNDER
STORMS FROM NORTHEAST OF WACO WESTWARD THROUGH WACO...LAMPASAS AND
SAN SABA  TO WEST OF BRADY. THIS AREA OF THUNDERSTORMS HAS DECREASED
SLOWLY IN INTEMSTY. MOVEMENT WAS EAST SOUTHEAST AT NEAR 20 MPH.
Special weather statement, May 28, 11:17 PM CDT, 1 hour 7 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1117 PM CDT THU MAY 28 1987

...TORNADO WATCH IS IN EFFECT UNTIL 100 AM CDT FOR VAL VERDE COUNTY
INCLUDING THE CITY OF DEL RIO...

AT 11 PM CDT RADAR INDICATED AN AREA THUNDERSTORMS IN THE SOUTHERN
HALF OF VAL VERDE COUNTY MOVING TO THE EAST AT AROUND 10 MPH. AN
INTENSE STROM WAS LOCATED 20 MILES W OF DEL RIO INSIDE MEXICO MOVING
SLOWLY NORTHEAST.

HEAVY RAIN HAS FALLEN IN SOME PARTS OF SOUTH VAL VERDE COUNTY AND LOW
WATER CROSSINGS AND LOW LYING AREAS EITHER HAVE FLOODED OR COULD
FLOOD WITH ANOTHER STRONG DOWNPOUR.

THE POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS WITH THE UNSTABLE
ATMOSPHERE AND MOIST SOUTHEAST FLOW.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
CWARNINGS.
Special weather statement, May 28, 11:22 PM CDT, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1117 PM CDT THU MAY 28 1987

...TORNADO WATCH IS IN EFFECT UNTIL 100 AM CDT FOR VAL VERDE COUNTY
INCLUDING THE CITY OF DEL RIO...

AT 1112 PM CDT RADAR INDICATED AN AREA THUNDERSTORMS IN THE SOUTHERN
HALF OF VAL VERDE COUNTY MOVING TO THE EAST AT AROUND 10 MPH. AN
INTENSE STORM WAS LOCATED 20 MILES W OF DEL RIO INSIDE MEXICO MOVING
SLOWLY NORTHEAST.

HEAVY RAIN HAS FALLEN IN SOME PARTS OF SOUTH VAL VERDE COUNTY AND LOW
WATER CROSSINGS AND LOW LYING AREAS EITHER HAVE FLOODED OR COULD
FLOOD WITH ANOTHER STRONG DOWNPOUR.

THE POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS WITH THE UNSTABLE
ATMOSPHERE AND MOIST SOUTHEAST FLOW.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSEIBLE
WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 7:05 PM CDTTornado WarningEWXVal Verde70 min
May 28, 8:20 PM CDTSevere Thunderstorm WarningEWXVal Verde70 min
May 28, 9:13 PM CDTSevere Thunderstorm WarningEWXKinney62 min
May 28, 9:55 PM CDTSevere Thunderstorm WarningEWXVal Verde65 min
May 28, 10:18 PM CDTSevere Thunderstorm WarningEWXKinney57 min
May 28, 11:14 PM CDTSevere Thunderstorm WarningEWXKinney61 min
May 29, 12:24 AM CDTSevere Thunderstorm WarningEWXReal, Uvalde66 min
May 29, 1:35 AM CDTSevere Thunderstorm WarningEWXBandera, Medina, Uvalde55 min
May 29, 2:32 AM CDTSevere Thunderstorm WarningEWXBandera, Medina58 min
May 29, 2:35 AM CDTSevere Thunderstorm WarningEWXVal Verde2 hr
May 29, 3:14 AM CDTFlash Flood WarningEWXTravis, Williamson2 hr
May 29, 3:19 AM CDTFlash Flood WarningEWXBandera, Kendall, Kerr, Real4 hr
May 29, 3:19 AM CDTFlash Flood WarningEWXMedina, Uvalde4 hr
May 29, 3:30 AM CDTSevere Thunderstorm WarningEWXBandera, Kerr, Real, Uvalde60 min
May 29, 3:30 AM CDTSevere Thunderstorm WarningEWXKendall60 min
May 29, 3:30 AM CDTSevere Thunderstorm WarningEWXMedina60 min
May 29, 4:39 AM CDTFlash Flood WarningEWXBastrop, Caldwell, Hays4 hr
May 29, 4:39 AM CDTFlash Flood WarningEWXLee4 hr
May 29, 4:39 AM CDTFlash Flood WarningEWXBlanco4 hr
May 29, 4:55 AM CDTSevere Thunderstorm WarningEWXBandera, Medina, Uvalde65 min
May 29, 4:58 AM CDTSevere Thunderstorm WarningEWXKinney, Maverick62 min
May 29, 7:27 AM CDTFlash Flood WarningEWXBandera, Medina, Uvalde4 hr
May 29, 11:58 AM CDTFlash Flood WarningEWXEdwards, Kerr, Real3 hr
May 29, 1:32 PM CDTSevere Thunderstorm WarningEWXKerr58 min
May 29, 2:23 PM CDTFlash Flood WarningEWXEdwards, Kerr, Real3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 1987Every severe thunderstorm warning in 1987

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.