Severe Thunderstorm Warning 136, NWS Austin/San Antonio, TX

Issued

May 12, 2000, 8:55 PM CDT (01:55 UTC)

Expired

May 12, 2000, 10:00 PM CDT

In force

65 min

Issued by

NWS Austin/San Antonio, TX

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Gillespie County, TX

The Austin/San Antonio radar (KEWX), 119 km from the middle of the area, began a volume at 01:55 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

139 
WUUS54 KEWX 130156
SVRSAT
TXC171-130300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
855 PM CDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  GILLESPIE COUNTY

* UNTIL 1000 PM CDT

* AT 855 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES EAST OF HARPER...OR ABOUT 12 MILES    
  WEST OF FREDERICKSBURG...MOVING EAST TO SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FREDERICKSBURG AROUND 915 PM CDT
  LUCKENBACH AROUND 945 PM CDT
  LBJ STATE PARK AROUND 955 PM CDT

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A
PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM IF A TORNADO IS SPOTTED.


LAT...LON 3047 9930 3015 9929 3016 9861 3049 9861

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 2:45 PM CDT, 6 hours 10 minutes earlier.

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
245 PM CDT FRI MAY 12 2000

MOST OF THE MODEL RUNS HAVE BEEN FAIRLY CONSISTENT IN BRINGING THE
COLD FRONT WHICH IS IN WEST CENTRAL TEXAS SOUTHWARD ACROSS THE AREA
AND DEVELOPING PRECIPITATION WITH THE FRONT BEGINNING EITHER LATE
THIS AFTERNOON OR THIS EVENING.  WILL KEEP THAT TREND IN CURRENT
FORECAST AND POSSIBLY RAISE POPS IN SOME AREAS.  INCREASING
MIDDLE CLOUDS OVER SOUTHWEST TEXAS INDICATES SOME LIFTING OCCURRING
AS UPPER TROUGH COMES CLOSER.

STEEP LAPSE RATE ABOVE CAP SO ANY THUNDERSTORMS COULD BECOME QUITE
STRONG.  LOW-LEVEL MOISTURE IS FAIRLY LIMITED ESPECIALLY WEST BUT
MAIN TRAJECTORIES BEHIND THE FRONT LATER TONIGHT AND SATURDAY WILL
BE FROM THE EAST WHERE MOISTURE IS BETTER.  COOLER TEMPERATURES ON
TAP FOR AREA BEHIND THE COLD FRONT AIDED BY MOSTLY CLOUDY
CONDITIONS.

COOLER AIR WILL BE DEEPER BUT BEGINNING TO SLIP TO THE EAST ON
SUNDAY AS RAIN THREATS BEGIN TO DECREASE.  A WARMER AND DRIER
PATTERN WILL SET BACK IN MONDAY THROUGH WEDNESDAY AS AN UPPER RIDGE
IS REESTABLISHED OVER THE AREA.

PRELIMINARY NUMBERS
AUS 68/80/60/80 4632
SAT 71/82/63/81 35g32
DRT 72/83/65/82 2321

.EWX...NONE.

16/06/20

Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.