Alert archive / Texas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 40, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 30, 1986, 10:15 PM CDT for La Salle County, McMullen County, Texas. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Apr 30, 1986, 10:15 PM CDT (03:15 UTC)
- Expired
- Apr 30, 1986, 11:15 PM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties La Salle County, TX, McMullen 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, 3.3 hours before the alert went out and 197 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
- 2215 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 761 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.1
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, Apr 30, 4:49 PM CDT, 5 hours 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 450 PM CDT WED APR 30 1986 AT 445 PM CDT RADAR SHOWED A LINE OF VERY HEAVY THUNDERSTORMS EXTENDING FROM JUST SOUTH OF BROWNWOOD TO NEAR JUNCTION. HEAVIEST THUNDERSTORMS WERE JUST WEST OF LLANO COUNTY AND ARE MOVING TOWARD THE NORTHEAST 25 MPH. OTHER HEAVY THUNDERSTORMS.. WITH HAIL INDICATED.. ARE LOCATED NORTH EAST OF AUSTIN AND A LITTLE SOUTH OF CAMERON. THE THUNDERSTORMS TO THE NORTHWEST HAVE THE POTENTIAL TO BECOME SEVERE AND WE WILL BE WATCHING THESE STORMS CLOSELY FOR THE NEXT FEW HOURS.
Special weather statement, Apr 30, 5:51 PM CDT, 4 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 550 PM CDT WED APR 30 1986 AT 545 PM CDT RADAR SHOWED A LINE OF VERY HEAVY THUNDERSTORMS WELL NORTHWEST OF AUSTIN. THOSE THUNDERSTORMS EXTEND FROM GOLDTHWAITE TO NORTHWEST OF LLANO TO ABOUT HALF WAY BETWEEN JUNCTION AND FREDERICKSBURG. THESE THUNDERSTORMS ARE LIKELY PRODUCING BRIEF HEAVY RAIN.. SMALL HAIL AND STRONG GUSTY WINDS. MOVEMENT OF THE LINE IS TOWARD THE EAST AND SOUTHEAST AT 15 MPH. OTHER HEAVY THUNDERSTORMS ARE LOCATED NORTHEAST OF AUSTIN AND EXTEND FROM ROCKDALE AND LEXINGTON NORTHEAST TOWARD PALESTINE.
Special weather statement, Apr 30, 7:00 PM CDT, 3 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 700 PM CDT WED APR 30 1986 AT 655 PM CDT RADAR SHOWED A LINE OF VERY HEAVY THUNDERSTORMS NORTHWEST OF AUSTIN. THOSE THUNDERSTORMS EXTEND FROM LAMPASAS TO MARBLE FALLS TO FREDERICKSBURG. HEAVIEST THUNDERSTORMS WERE BETWEEN KINGSLAND AND MARBLE FALLS. LCRA AT BUCHANAN DAM REPORTED STRONG GUSTY WIND VERY HEAVY RAIN FOR 15 MINUTES AND LOTS OF PEA TO MARBLE SIZE HAIL WHICH LASTED FO2R 10 MINUTES AND NEARLY COVERED THE GROUND. THIS LINE OF THUNDERSTORMS WAS MOVING TOWARD THE SOUTHEAST AT 20 MPH. OTHER HEAVY THUNDERSTORMS ARE LOCATED NORTH AND EAST OF AUSTIN AND MOVING AWAY.
Special weather statement, Apr 30, 7:55 PM CDT, 2 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 755 PM CDT WED APR 30 1986 AT 755 PM CDT RADAR SHOWED A LINE OF VERY HEAVY THUNDERSTORMS NORTH THROUGH WEST OF AUSTIN. THOSE THUNDERSTORMS EXTEND FROM SOUTH OF WACO TO GEORGETOWN TO NEAR KERVILLE. HEAVIEST THUNDERSTORMS WERE NORTH OF GEORGETOWN AND NORTH OF JOHNSON CITY. RADIO STATION KHLB REPORTED ALOT OF PEA AND MARBLE SIZE HAIL AND VERY HEAVY RAIN IN MARBLE FALLS. HAIL WAS ALuSO REPORTED BETWEEN LAKE BUCHANAN AND BURNET. THIS LINE OF THUNDERSTORMS WAS MOVING TOWARD THE SOUTHEAST AT 20 TO 25 MILES AN HOUR.
Special weather statement, Apr 30, 8:32 PM CDT, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 835 PM CST WED APR 29 1986 ...THUNDERSTORMS DEVELOPING IN SOUTH BEXAR COUNTY... AT 830 PM RADAR INDICATED A LINE OF SCATTERED THUNDERSTORMS FROM NORTH ATASCOSA COUNTY ACROSS SOUTHEAST BEXAR INTO GUADALUPE COUNTY. THESE THUNDERSTORMS WILL LIKELY DEVELOP NORTH AND EASTWARD AND INTENSIFY DURING THE NEXT HOUR. ADDITIONAL STATEMENTS WILL BE ISSUED AS NECESSARY.
Special weather statement, Apr 30, 8:57 PM CDT, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 900 PM CDT WED APR 30 1986 AT 900 PM CDT RADAR SHOWED A LINE OF VERY HEAVY THUNDERSTORMS NORTH THROUGH SOUTH OF AUSTIN. THOSE THUNDERSTORMS EXTEND FROM NEAR WACO TO TAYLOR.. TO AUSTIN AND BLANCO. HEAVIEST THUNDERSTORMS WERE FROM TAYLOR TO AUSTIN TO BLANCO. OUR AMATURE RADIO NETWORK HAS RECEIVED NUMEROUS REPORTS OF PEA SIZE TO MARBLE SIZE HAIL AROUND THE IMMEDIATE CENTRAL TEXAS AREA. ONE RAINFALL REPORT WAS .85 INCH IN 15 MINUTES AT ANDERSON MILL. ALSO .96 AT SHENANDOAH AND 1 INCH AT LAKE BUCHAHAN. THIS LINE OF THUNDERSTORMS WAS MOVING TOWARD THE SOUTHEAST AT 20 TO 25 MILES AN HOUR. AA NEW LINE OF HEAVY THUNDERSTORMS DEVELOPED SOUTHEAST OF SAN ANTONIO.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 8:54 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Bexar | 66 min |
| Apr 30, 8:59 PM CDT | Severe Thunderstorm Warning | EWX | Real | 61 min |
| May 1, 3:35 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 55 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.