Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 154, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 10, 1987, 4:42 PM CDT for Travis County, Texas. It was in force for 63 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 10, 1987, 4:42 PM CDT (21:42 UTC)
- Expired
- Sep 10, 1987, 5:45 PM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Travis County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 10, 4:56 PM CDT | Thunderstorm Wind 70 | Travis, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Victoria Regiona, TX (KVCT), launched 12:00Z, 9.7 hours before the alert went out and 186 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
- 2443 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 657 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 102142 SVRAUS TXC031-171-299-453-102245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN TX 442 PM CDT THU SEP 10 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF TEXAS...BLANCO...GILLESPIE...LLANO AND TRAVIS AT 435 PM CDT SCATTERED SEVERE THUNDERSTORMS HAVE DEVELOPED FROM THE AUSTIN AREA WESTWARD TO NEAR LLANO. THESE THUNDERSTOR MS HAVE PRODUCED STRONG GUSTY WINDS AND HAIL OVER PARTS OF THESE AREA AND IS POSSIBLE OVER THE OTHER COUNTIES IN THE SEVEERE THUNDERSTORMS. THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY ! THIS STORM MAY BTE ACCOMPANIED BY STRONG DAMAGING WINDS..HAIL AND FREQUENT LIGHTNING.
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, Sep 10, 4:18 PM CDT, 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 415 PM CDT THU SEP 10 1987 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR BANDERA...BEXAR...COMAL...EDWARDS...GUADALUPE...KENDALL...KERR... KINNEY...MEDINA...REAL AND UVALDE COUNTIES. THE METROPOLITAN AREA OF SAN ANTONIO IS INCLUDED IN THE WATCH AREA. IN ADDITION...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM CDT FOR GONZALES COUNTY. A LINE OF THUNDERSTORMS...SOME POSSIBLY SEVERE WITH STRONG DAMAGING WINDS...LARGE HAIL...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL... EXTENDS FROM ROCKSPRINGS TO JUNCTION TO AUSTIN...WITH MOVEMENT TOWARD THE SOUTHEAST AT 25 MPH. AS THIS LINE MOVES SOUTHEAST THIS AFTERNOON AND EARLY EVENING...PERSONS IN THE HILL COUNTRY...ADJACENT EDWARDS PLATEAU AND SOUTH CENTRAL TEXAS SHOULD BE ON THE ALERT FOR THREATENING WEATHER...LISTEN FOR THE LATEST SEVERE WEATHER BULLETINS...AND BE PREPARED TO? MOVE TO A PLACE OF SAFETY IF SEVERE WEATHER IS SIGHTED OR A WARNING IS ISSUED. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED TO LOCAL RADIO...TV OR NOAA WEATHER RADIO STATIONS.
Special weather statement, Sep 10, 4:30 PM CDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 430 PM CDT THU SEP 10 1987 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR VAL VERDE COUNTY UNTIL 900 PM CDT... AT 425 PM RADAR INDICATED THUNDERSTORMS AND RAINSHOWERS ALONG HIGHWAY 163 FROM 10 MILES SOUTH OF JUNO AND EXTENDED EAST TO NEAR JUNCTION. ANOTHER AREA OF THUNDERSTORMS WAS IN MEXICO FROM 25 MILES SOUTHWEST TO 75 MILES WEST OF DEL RIO. MOVEMENT OF THE STORMS WAS TO THE EAST AT 30 MILES AN HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. BOATERS ON LAKE AMISTAD AND SURROUNDING RIVERS SHOULD BE ON THE WATCH FOR APPROACHING WEATHER AND MOVE QUICKLY TO SHORE AND AWAY FROM THE WATER IF THE WEATHER BECOMES THREATENING. ADDITIONAL STATEMENTS OR WARNINGS WILL BE ISSUED ASF CONDITIONS WARRANT...SO PLEASE STAY TUNED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 4:28 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kerr, Real | 62 min |
| Sep 10, 4:42 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie, Llano | 63 min |
| Sep 10, 4:54 PM CDT | Severe Thunderstorm Warning | EWX | Kendall | 66 min |
| Sep 10, 5:17 PM CDT | Severe Thunderstorm Warning | EWX | Bandera | 58 min |
| Sep 10, 5:40 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell | 65 min |
| Sep 10, 5:42 PM CDT | Severe Thunderstorm Warning | EWX | Comal | 63 min |
| Sep 10, 6:11 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 64 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.