Alert archive / Texas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 177, NWS Austin/San Antonio, TX

November 16, 1987DeWitt County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Nov 16, 1987, 5:30 AM CST for DeWitt County, Texas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Nov 16, 1987, 5:30 AM CST (11:30 UTC)
Expired
Nov 16, 1987, 6:30 AM CST
In force
60 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County DeWitt 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

Victoria Regiona, TX (KVCT), launched 00:00Z, 11.5 hours before the alert went out and 51 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, Victoria Regiona, TX at 00:00Z on 1987-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3472 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, Victoria Regiona, TX at 00:00Z on 1987-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
3472 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
1.2
Supercell composite
6.3

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, Nov 15, 11:50 PM CST, 5 hours 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1150 PM CST SUN NOV 15 1987

...THUNDERSTORMS MOVING INTO THE DEL RIO AREA...

AT 1145 PM RADAR INDICATED A LARGE AREA OF THUNDERSTORMS AND RAINSHOWERS
FROM 50 MILES SOUTHWEST OF DEL RIO...NORTH TO JUNO TO LOMA ALTA AND
SOUTH TO EAGLE PASS. THE STRONGEST THUNDERSTORM WAS BEGINNING TO MOVE
THROUGH THE DEL RIO AREA. MOVEMENT OF THE THUNDERSTORMS WAS TO THE
NORTHEAST AT 30 MPH.

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

REMEMBER...LIGHTNING AND GUSTY WINDS CAN OCCUR SOME DISTANCE FROM THE
MAIN THUNDERSTORM CLOUD...SO DON`T BE CAUGHT UNAWARE...ALLOW YOURSELF
PLENTYu OF TIME TO REACH A PLACE OF SAFETY IF CONDITIONS BECOME
THREATENING.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO STAY
TUNED TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATIONS.
Special weather statement, Nov 16, 12:58 AM CST, 4 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
1258 AM CST MON NOV 16 1987

AT 1250 AM RADAR INDICATED THUNDERSTORMS THROUGHOUT NORTH AND
NORTHEASTERN VAL VERDE COUNTY...NORTH OF A LINE FROM LOMA ALTA TO
PANDALE IN THE NORTHWEST PART OF THE COUNTY. THE STRONGEST THUNDERSTORMS
WERE 35 NORTHEAST OF DEL RIO . MOVEMENT OF THE THUNDERSTORMS WAS TO THE
NORTHEAST AT 25 MPH.

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

REMEMBER...LIGHTNING AND GUSTY WINDS CAN OCCUR SOME DISTANCE FROM THE
MAIN THUNDERSTORM CLOUD...SO DON`T BE CAUGHT UNAWARE...ALLOW YOURSELF
PLENTY OF TIME TO REACH A PLACE OF SAFETY IF CONDITIONS BECOME9
THREATENING.

ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO STAY
TUNED TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATIONS.
Special weather statement, Nov 16, 1:49 AM CST, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
149 AM CST MON NOV 16 1987

...A TORNADO WATCH IS IN EFFECT FOR VAL VERDE COUNTY INCLUDING THE CITY
OF DEL RIO UNTIL 800 AM THIS MONDAY MORNING...

THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EITHER SIDE OF A
LINE FROM 70 MILES WEST OF COTULLA TEXAS TO COLLEGE STATION TEXAS.

AT 145 AM RADAR INDICATED NO PRECIPITATION IN VAL VERDE COUNTY. ISOLATED
RAINSHOWERS AND THUNDERSTORMS WERE LOCATED 10 MILES SOUTHWEST OF DEL RIO
IN OLD MEXICO. MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTHEAST AT 20
MPH.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREAa.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Local storm report, Nov 16, 2:28 AM CST, 3 hours 2 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
225 AM CST MON NOV 16 1987

TIME         EVENT
BETWEEN      POSSIBLE TORNADO TOUCHDOWN OR STRONG THUNDERSTORM WINDS
2 AM AND     TOOK ROOF OFF STORE IN INGRAM TEXAS.  INGRAM LOCATED JUST
205 AM CST   NORTHEAST OF KERRVILLE ON IH 10.  REPORT RECEIVED FROM
             KERR COUNTY SHERIFF DEPARTMENT.
Special weather statement, Nov 16, 4:02 AM CST, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DEL RIO TX
402 AM CST MON NOV 16 1987

...VAL VERDE COUNTY IS NO LONGER INCLUDED IN THE TORNADO WATCH
AREA ISSUED EARLIER THIS MONDAY MORNING...

AT 355 AM RADAR INDICATED ALL PRECIPITATION HAD MOVED EAST OF VAL
VERDE COUNTY. RAINSHOWERS WERE DEVELOPING JUST WEST OF DEL RIO TO 35
MILES SOUTH IN OLD MEXICO. SEVERE THUNDERSTORMS ARE NOT EXPECTED TO
REDEVELOP IN THE VAL VERDE COUNTY AREA.

THE NATION@AL WEATHER SERVICE OFFICE AT THE DEL RIO INTERNATIONAL
AIRPORT RECIEVED ONLY .02 INCH OF RAIN AND WIND GUSTS TO 32 MPH
DURING THE THUNDERSTORM THAT PASSED THROUGH THE DEL RIO AREA AROUND
MID-NIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 10:25 PM CSTSevere Thunderstorm WarningEWXCalhoun50 min
Nov 16, 1:08 AM CSTSevere Thunderstorm WarningEWXMaverick67 min
Nov 16, 1:21 AM CSTSevere Thunderstorm WarningEWXBandera, Kerr, Real69 min
Nov 16, 2:05 AM CSTSevere Thunderstorm WarningEWXGillespie55 min
Nov 16, 2:31 AM CSTSevere Thunderstorm WarningEWXBandera, Uvalde59 min
Nov 16, 2:56 AM CSTSevere Thunderstorm WarningEWXBurnet, Llano64 min
Nov 16, 2:58 AM CSTSevere Thunderstorm WarningEWXMedina62 min
Nov 16, 2:58 AM CSTSevere Thunderstorm WarningEWXKendall62 min
Nov 16, 3:20 AM CSTSevere Thunderstorm WarningEWXMcMullen55 min
Nov 16, 3:34 AM CSTSevere Thunderstorm WarningEWXBexar56 min
Nov 16, 3:38 AM CSTSevere Thunderstorm WarningEWXFrio67 min
Nov 16, 3:55 AM CSTTornado WarningEWXBexar65 min
Nov 16, 5:04 AM CSTSevere Thunderstorm WarningEWXKarnes56 min
Nov 16, 7:04 AM CSTSevere Thunderstorm WarningEWXVictoria56 min
Nov 16, 7:36 AM CSTTornado WarningEWXJackson54 min

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.