Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 114, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 28, 1987, 6:50 PM CDT for Val Verde County, Texas. It was in force for 70 min.
The area
The counties it named.
The facts
- Issued
- May 28, 1987, 6:50 PM CDT (23:50 UTC)
- Expired
- May 28, 1987, 8:00 PM CDT
- In force
- 70 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde 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 12:00Z, 11.8 hours before the alert went out and 66 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.
- Mixed-layer CAPE
- 3554 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 539 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 3.6
- Supercell composite
- 16.1
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, 2:06 PM CDT, 4 hours 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 205 PM CDT THU MAY 28 1987 ...TORNADO WATCH IS IN EFFECT UNTIL 1000 PM CDT FOR VAL VERDE COUNTY INCLUDING THE CITY OF DEL RIO... AT 200 PM RADAR INDICATED NO THUNDERSTORMS OR RAINSHOWERS IN VAL VERDE COUNTY. HOWEVER WITH THE UNSTABLE ATMOSPHERE AND MOIST SOUTHEAST FLOW THE POTENTIAL FOR SEVERE THUNDERSTORMS EXISTS. 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 WARNINGS.
Special weather statement, May 28, 3:22 PM CDT, 3 hours 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 322 PM CDT THU MAY 28 1987 ...TORNADO WATCH IS IN EFFECT UNTIL 1000 PM CDT FOR VAL VERDE COUNTY INCLUDING THE CITY OF DEL RIO... AT 315 PM RADAR INDICATED A STRONG THUNDERSTORM WAS NEAR LANGTRY AND WAS MOVING NORTH AT 5 MILES AN HOUR. NO OTHER THUNDERSTORMS WERE OCCURRING IN VAL VERDE COUNTY. CAMPERS AND FISHERMEN ON THE RIO GRANDE AND PECOS RIVERS NEAR THE PECOS HIGH BRIDGE SHOULD REMAIN ALERT AND MOVE TO A PLACE OF SAFTEY IF THE STORM BECOMES THREATENING. HEAVY RAIN...GUSTY WINDS SMALL HAIL AND DANGEROUS LIGHTNING ARE QUITE LIKELY FROM THIS STORM. 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 WARNINGS.
Special weather statement, May 28, 4:12 PM CDT, 2 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 408 PM CDT THU MAY 28 1987 ...TORNADO WATCH IS IN EFFECT UNTIL 1000 PM CDT FOR VAL VERDE COUNTY INCLUDING THE CITY OF DEL RIO... AT 339 PM CDT LAUGHLIN RADAR INDICATED AN INTENSE THUNDERSTORM ALONG THE VAL VERDE AND TERREL COUNTY LINE MOVING NORTH AT AROUND 20 MPH. THIS STORM WAS VERY CLOSE TO HIGHWAY 90S CROSSING POINT OF THE COUNTY LINE. MOTORISTS IN THIS AREA SHOULD BE ESPECIALLY ALERT FOR DECREASED VISIBLITY IN HEAVY RAIN AND GUSTY WINDS WHICH WILL MAKE DRIVING DIFFICULT. 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 WARNINGS.
Special weather statement, May 28, 4:37 PM CDT, 2 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 438 PM CDT THU MAY 28 1987 ...TORNADO WATCH IS IN EFFECT UNTIL 1000 PM CDT FOR VAL VERDE COUNTY INCLUDING THE CITY OF DEL RIO... AT 430 PM CDT LAUGHLIN RADAR INDICATED A LINE OF VERY STRONG THUNDERSTORMS FROM THE VAL VERDE COUNTY LINE EAST TO LANGTRY MOVING EAST AT AROUND 15 MPH. THE STORMS WERE OVER AND CLOSE TO HIGHWAY 90. MOTORISTS IN THE LANGTRY AREA HAVE REPORTED HAIL. MOTORISTS IN THIS AREA SHOULD BE ESPECIALLY ALERT FOR DAMAGING HAIL DECREASED VISIBLITY IN HEAVY RAIN AND STRONG GUSTY WINDS WHICH WILL MAKE DRIVING DIFFICULT. 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 STATEM9ENTS AND POSSIBLE WARNINGS.
Special weather statement, May 28, 6:12 PM CDT, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 610 PM CDT THU MAY 28 1987 ...TORNADO WATCH IN EFFECT FOR TEXAS HILL COUNTRY UNTIL 10 PM TONIGHT... A TORNADO WATCH REMAINS IN EFFECT UNTIL 10 PM TONIGHT FOR THE TEXAS HILL COUNTRY AND EDWARDS PLATEAU ALONG AND NORTH AND WEST OF A LINE FROM JUNCTION TO UVALDE TO DEL RIO. THE CITIES OF JUNCTION...UVALDE AND DEL RIO ARE INCLUDED IN THE WATCH. A SEVERE THUNDERSTORM WARNING HAS ALREADY BEEN ISSUED FOR PERSONS IN VAL VERDE COUNTY UNTIL 645 PM CDT THIS EVENING. A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 25 MILES SOUTHWEST OF COMSTOCK MOVING TO THE EAST AT 15 MILES AN HOUR. IN ADDITION...INTENSE THUNDERSTORMS HAVE CONTINUED TO DEVELOP THIS EVENING FROM WEST OF DEL RIO NORTHWARD TO SAN ANGELO... EXTENDING INTO THE ABILENE AREA. THE THUNDERSTORMS WILL LIKELY MOVE INTO WESTERN PORTIONS OF THE HILL CONURTY AND THE EDWARDS PLATEAU THIS EVENING AND EARLY FRIDAY MORNING. < THE THUNDERSTORMS THAT MOVE INTO THESE AREAS WILL HAVE THE POTENTIAL FOR LARGE HAIL...DAMAGING WINDS...AND EVEN TORNADOES. IN ADDITION TO THESE FORMS OF SEVERE WEATHER...THE STORMS WILL LIKELY PRODUCE VERY FREQUENT AND DEADLY LIGHTNING AND BRIEF BUT HEAVY DOWNPOURS. EVERYONE IN THE WATCH AREA SHOULD REMAIN ALERT TO THIS THREAT OF SEVERE WEATHER THROUGH THE REMAINDER OF THIS EVENING AND TONIGHT. CAMPERS SHOULD CONTINUE TO MONITOR A RELIABLE SOURCE OF WEATHER INFORMATION AND BE READY TO MOVE TO A SUBSTANTIAL AND NEARBY SHELTER IF NECESSARY. RESIDENTS IN THE AREA SHOULD KEEP UP TO DATE ON THE LATEST STATEMENTS AS WELL. MOTORISTS SHOULD TRAVEL CAUTIOUSLY WHEN NEAR THE MORE INTENSE THUNDERSTORMS...VISIBILITY MAY LOWER RAPIDLY...STREETS AND ROADS MAY BECOME SLICK AND WINDS MAY BE GUSTY AT TIMES. FLOODING OF LOW LYING AND POORLY DRAINED AREAS IS ALSO POSSIBLE NEAR THESE INTENSE STORMS. STAY TUNED TO LOCAL RADIO...TV OR NOAA WEATHER RADIO.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 5:40 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 65 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.