Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 9, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 11, 1986, 11:11 PM CST for Lavaca County, Texas. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Mar 11, 1986, 11:11 PM CST (05:11 UTC)
- Expired
- Mar 11, 1986, 11:46 PM CST
- In force
- 35 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Lavaca 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, 5.2 hours before the alert went out and 59 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
- 2637 J/kg
- Mixed-layer CIN
- -101 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KVCT 120511 SVRVCT TXC285-120600- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE VICTORIA TX 1111 PM CST TUE MAR 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1200 AM CST FOR PEOPLE IN THE FOLLOWING COUNTY OF TEXAS...EASTERN LAVACA AT 1105 PM CST SERVERE THUNDERSTORMS WERE INDICATED BY THE VICTORIA RADAR OVER EASTERN LAVACA COUNTY MOVING TOWARDS THE NORTHEAST AT 30 MPH. FREQUENT LIGHTNING..STRONG DAMAGING WIND AND POSSIBLE HAIL MAY ACCOMPANY THIS STORM. THE SEVERE THUNDERSTORM WARNING ISSUED EARLIER FOR DEWITT COUNTY
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, Mar 11, 5:51 PM CST, 5 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 550 PM CST TUE MAR 11 1986 ...THUNDERSTORMS IN THE TEXAS HILL COUNTRY... AT 545 A LINE OF THUNDERSTORMS EXTENDED SOUTHWEST ACROSS THE #HILL COUNTRY FROM JUST EAST OF JUNCTION TO JUST NORTH OF BRACKETTVILLE. THIS LINE IS MOVING TO THE SOUTHEAST AND THUNDERSTORMS ALONG THE LINE MAY INTENSIFY DURING THE NEXT FEW HOURS. LISTEN FOR LATER STATEMENTS OR ADVICES ON THESE STORMS.
Special weather statement, Mar 11, 7:56 PM CST, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 745 PM CST TUE MAR 12 1986 ...LINE OF STRONG THUNDERSTORMS MOVING ACROSS THE TEXAS HILL COUNTRY... A TORNADO WATCH IS IN EFFECT FOR MUCH OF SOUTHCENTRAL TEXAS THROUGH 1 AM TONIGHT. AT 745 PM CST A LINE OF STRONG THUNDERSTORMS EXTENDED FROM 50 MILES NORTHWEST OF SAN ANTONIO TO 75 MILES WEST OF SAN ANTONIO MOVING TOWARD THE SOUTHEAST AT 30 TO 35 MPH. MARBLE SIZE HAIL WAS REPORTED IN UVALDE AT 730 PM WHEN THIS LINE OF THUNDERSTORMS PASSED THROUGH THERE AND HONDO REPORTED SMALL HAIL AROUN 745 PM. THIS LINE OF THUNDERSTORMS MAY INCREASE IN INTENSITY AS IT MOVES EASTWARD. THE PRESENT MOVEMENT WOULD PLACE THE LINE OF THUNDERSTORMS IN THE SAN ANTONIO AREA BETWEEN 9 AND 11 PM. HAIL AND GUSTY WINDS ALONG WITH FREQUENT LIGHTNING WILL ACCOMPANY THIS LINE OF THUNDERSTORMS.
Local storm report, Mar 11, 10:39 PM CST, 32 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN TX
1030 PM CST TUE MAR 11 1986
TIME REPORT
750 PM SPOTTER REPORTED 1/2 INCH HAIL AT LEANDER..AND A
MEASURED WIND GUST TO 60 MPH AT CEDAR PARK.
754 PM WARNING ISSUED FOR TRAVIS AND WILLIAMSON COUNTIES.
813 PM SPOTTER REPORTED 1/2 INCH HAIL AT CITY PARK OFF 2222.
816 PM SPOTTER REPORTED PEA SIZE HAIL AT OAK HILL..SW OF AUS.
820 PM PUBLIC REPORTED PEA TO MARBLE SIZE HAIL 5NW AUSTIN.
918 PM PEAK WIND GUST TO 51 MPH RECORDED AT AUSTIN AIRPORT.
END/JVDLocal storm report, Mar 11, 10:39 PM CST, 32 minutes before
STORM REPORT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1040 PM CST TUE MAR 11 1986 TIME EVENT PM CST 800 3/4" HAIL AT HONDO IN MEDINA COUNTY 815 1" HAIL AT HELOTES IN WEST BEXAR COUNTY 840 3/4" HAIL IN NORTHERN SAN ANTONIO IN NORTH BEXAR COUNTY 925 BASEBALL SIZE HAIL AT FLORESVILLE IN WILSON COUNTY
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 8:00 PM CST | Severe Thunderstorm Warning | EWX | Travis, Williamson | 60 min |
| Mar 11, 8:11 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 64 min |
| Mar 11, 8:11 PM CST | Severe Thunderstorm Warning | EWX | Medina | 34 min |
| Mar 11, 9:11 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe, Wilson | 64 min |
| Mar 11, 9:32 PM CST | Severe Thunderstorm Warning | EWX | Gonzales | 58 min |
| Mar 11, 10:19 PM CST | Severe Thunderstorm Warning | EWX | DeWitt, Lavaca | 56 min |
| Mar 12, 12:27 AM CST | Severe Thunderstorm Warning | EWX | Lavaca | 63 min |
| Mar 12, 12:30 AM CST | Severe Thunderstorm Warning | EWX | Victoria | 60 min |
| Mar 12, 1:00 AM CST | Severe Thunderstorm Warning | EWX | Calhoun | 60 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1986Every severe thunderstorm warning in 1986
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.