Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 87, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 19, 1987, 9:39 PM CDT for Wilson County, Texas. It was in force for 66 min.
The area
The counties it named.
The facts
- Issued
- May 19, 1987, 9:39 PM CDT (02:39 UTC)
- Expired
- May 19, 1987, 10:45 PM CDT
- In force
- 66 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Wilson 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, 2.7 hours before the alert went out and 121 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
- 1600 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 200239
SVRSAT
TXC493-200345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
939 PM CDT TUE MAY 19 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1045 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...WILSON
A SEVERE THUNDERSTORM IS LOCATED JUST WEST OF FLORESVILLE TEXAS AND
IS MOVING EAST ABOUT 15 MPH. THIS THUNDERSTORM CONTAINS LARGE HAIL
AND DAMAGING WINDS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
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, May 19, 4:20 PM CDT, 5 hours 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 420 PM CDT TUE MAY 19 1987 AT 415 PM CDT LOCAL WEATHER RADAR SHOWED WIDESPREAD THUNDERSTORMS OVER NEARLY ALL OF THE CENTRAL TEXAS AREA. VERY INTENSE THUNDERSTORMS WERE LOCATED IN SOUTHWEST HAYS COUNTY AND IN EASTERN HAYS COUNTY. THESE INTENSE THUNDERSTORMS ARE MOVING NORTH AT 20 TO 30 MPH AND WILL BE MOVING ACROSS HAYS COUNTY AND INTO TRAVIS COUNTY BY 5 PM. OTHER INTENSE THUNDERSTORMS WERE LOCATED JUST SOUTH OF BURNET AND NEAR JOHNSON CITY. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR ALL OF CENTRAL UNTIL 9 PM THIS TUESDAY EVENING. RUSH HOUR MOTORISTS IN AUSTIN SHOULD ANTICIPATE SOME HEAVY RAIN AND POSSIBLE SMAALL HAIL ALONG WITH STRONG GUSTY WINDS WHILE DRIVING HOME.
Special weather statement, May 19, 6:18 PM CDT, 3 hours 21 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 615 PM CDT TUE MAY 19 1987 AT 6 PM CDT LOCAL WEATHER RADAR SHOWED WIDESPREAD THUNDERSTORMS OVER NEARLY ALL OF THE CENTRAL TEXAS AREA. AN INTENSE THUNDERSTORM WAS LOCATED JUST SOUTH OF AUSTIN OVER SOUTHERN TRAVIS COUNTY AND NORTHERN CALDWELL COUNTY MOVING TOWARDS BASTROP COUNTY. THIS THUNDERSTORM MAY PRODUCE BRIEF HEAVY RAINFALL...GUSTY WINDS TO NEAR 40 MPH...SMALL HAIL AND FREQUENT LIGHTNING AS IT MOVES TOWARDS AND INTO BASTROP COUNTY. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR ALL OF CENTRAL UNTIL 9 PM THIS TUESDAY EVENING.
Local storm report, May 19, 8:12 PM CDT, 1 hour 27 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
800 PM CDT TUE MAY 19 1987
TIME EVENT
330 PM PEA SIZE HAIL 5 MILE SOOUTH OF INTERSECTION OF US281 AND
LOOP 1604...BEXAR COUNTY
315 PM PEA SIZE HAIL AT POTEET...ATASCOSA COUNTY
410 PM PEA SIZE HAIL NE SAN ANTONIO...BEXAR COUNTY
503 PM POSSIBLE FUNNEL CLOUD SPOTTED BY PATROLMAN 6 MILES SOUTH OF
SEGUIN...GUADALUPE COUNTY.
523 PM PEA TO MARBLE SIZE HAIL...GUADALUPE COUNTY
544 PM MARBLE SIZE HAIL SOUTH SIDE OF SAN ANTONIO...BEXAR COUNTY
613 PM PEA SIZE HAIL AT STINSON FIELD...BEXAR COUTY
630 PM TREE TOPS TWISTED OFF...WILSON COUTY ON JOLLY ROAD 1/Z2
MILE SOUTHEAST OF LOOP 1604
635 PM ROOF LIFTED OFF HOUSE TOWN OF ADKINS OFF US87...WILSON COUTY
705 PM 1/2 INCH HAIL AT KELLY AIR FORCE BASE...BEXAR COUNTY
706 PM MARBLE SIZE HAIL DESTROYED VEGETATION IN LOSOYALocal storm report, May 19, 8:14 PM CDT, 1 hour 25 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
800 PM CDT TUE MAY 19 1987
TIME EVENT
330 PM PEA SIZE HAIL 5 MILE SOOUTH OF INTERSECTION OF US281 AND
LOOP 1604...BEXAR COUNTY
315 PM PEA SIZE HAIL AT POTEET...ATASCOSA COUNTY
410 PM PEA SIZE HAIL NE SAN ANTONIO...BEXAR COUNTY
503 PM POSSIBLE FUNNEL CLOUD SPOTTED BY PATROLMAN 6 MILES SOUTH OF
SEGUIN...GUADALUPE COUNTY.
523 PM PEA TO MARBLE SIZE HAIL...GUADALUPE COUNTY
544 PM MARBLE SIZE HAIL SOUTH SIDE OF SAN ANTONIO...BEXAR COUNTY
613 PM PEA SIZE HAIL AT STINSON FIELD...BEXAR COUTY
630 PM TREE TOPS TWISTED OFF...WILSON COUTY ON JOLLY ROAD 1/2
MILE SOUTHEAST OF LOOP 1604
635 PM ROOF LIFTED OFF HOUSE TOWN OF ADKINS OFF US87...WILSON COUTY
705 PM 1/2 INCH HAIL AT KELLY AIR FORCE BASE...BEXAR COUNTY
706 PM MARBLE SIZE HAIL DESTROYED VEGETATION IN LOSOYA
725 PM 4 F\UNNEL CLOUDS REPORTED BY PUBLIC...ONE BLOWING UP SHACK
BEHIND A HOUSE IN SUTHERLAND SPRINGS...WILSON COUNTYSpecial weather statement, May 19, 8:44 PM CDT, 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 840 PM CDT TUE MAY 19 1987 AT 825 PM AUSTIN RADAR INDICATES INTENSE THUNDERSTORMS FROM 20 MILES SOUTH OF AUSTIN TO WEST OF SEGUIN MOVING TOWARDS THE NORTHEAST. THESE THUNDERSTORMS MAY PRODUCE GUSTY WINDS...HEAVY RAINFALL AND SMALL HAIL. STRONG THUNDERSTORMS ARE STILL IN A BAND 10 TO 20 MILES WIDE FROM NORTH OF COLLEGE STATION TO CALDWELL AND SMITHVILLE. MOVEMENT IS TOWARDS THE EAST. | THESE ARE PART OF A LARGE RAIN AREA THAT EXTENDS EAST OF A LINE FROM 80 MILES NORTHWEST OF AUSTIN TO JOHNSON CITY TO SOUTH OF SAN ANTONIO. A TORNADO WATCH REMAINS IN EFFECT UNTILL MIDNIGHT FOR A LARGE PORTION OF CENTRAL TEXAS EASTWARD.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:26 PM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| May 19, 8:00 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 60 min |
| May 19, 8:09 PM CDT | Flash Flood Warning | EWX | Guadalupe | 3 hr |
| May 19, 8:28 PM CDT | Tornado Warning | EWX | Bexar | 62 min |
| May 19, 8:50 PM CDT | Severe Thunderstorm Warning | EWX | McMullen | 55 min |
| May 19, 9:16 PM CDT | Severe Thunderstorm Warning | EWX | Guadalupe | 59 min |
| May 19, 10:55 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales, Karnes | 65 min |
| May 19, 11:20 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt | 55 min |
| May 20, 12:05 AM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 55 min |
| May 20, 5:44 PM CDT | Severe Thunderstorm Warning | EWX | Frio | 61 min |
| May 20, 6:13 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 2 hr |
| May 20, 6:39 PM CDT | Severe Thunderstorm Warning | EWX | Frio | 66 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.