Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 55, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 13, 1987, 10:20 PM CDT for Bandera County, Kerr County, Texas. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- May 13, 1987, 10:20 PM CDT (03:20 UTC)
- Expired
- May 13, 1987, 11:15 PM CDT
- In force
- 55 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bandera County, TX, Kerr 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, 3.3 hours before the alert went out and 160 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
- 3087 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 140320
SVRSAT
TXC019-265-140415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1020 PM CDT WED MAY 13 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH TEXAS
...BANDERA...KERR
NATIONAL WEATHER SERVICE RADAR INDICATES VERY INTENSE THUNDERSTORMS
IN SOUTHERN BANDERA COUNTY...MOVING TO THE NORTH AT 10 MPH. THE
SHERIFFS DEPARTMENT IN BANDERA REPORTED SPOTTY 1 INCH HAIL WITH MOST
HAIL PEA TO MARBLE SIZED HAIL IN THE CITY OF BANDERA. HEAVY RAIN WAS
ALSO OCCURRING.
WHEN A THUNDERSTORM THREATENS...SEEK SHELTER INSIDE{ A HOME OR
BUILDING AWAY FROM DOORS AND WINDOWS. REFRAIN FROM USING ELECTRICAL
APPLIANCES.
YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.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 13, 8:17 PM CDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 816 PM CDT WED MAY 13 1987 ...THUNDERSTORMS OBSERVED IN THE DEL RIO AREA... AT 815 PM CDT THUNDERSTORMS WERE OBSERVED AT THE DEL RIO INTERGNATIONAL AIRPORT. THESE STORMS WERE MOVING TO THE NORTHEAST AT 10 TO 15 MPH. HEAVY RAIN...SMALL HAIL...STRONG GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE STORMS.
Special weather statement, May 13, 10:03 PM CDT, 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1002 PM CDT WED MAY 13 1987 ...THUNDERSTORMS OBSERVED IN THE DEL RIO AREA... AT 1000 PM CDT THUNDERSTORMS WITH FREQUENT DANGEROUS LIGHTNINGe WERE OBSERVED AT THE DEL RIO INTERNATIONAL AIRPORT. THESE STORMS WERE MOVING TO THE NORTH AT 10 MPH. HEAVY RAIN...SMALL HAIL...AND STRONG GUSTY WINDS ARE ALSO POSSIBLE WITH THESE STORMS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 7:26 PM CDT | Severe Thunderstorm Warning | EWX | Zavala | 64 min |
| May 13, 8:09 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 66 min |
| May 13, 9:28 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 62 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.