Severe Thunderstorm Warning 162, NWS Austin/San Antonio, TX

Issued

Aug 11, 2003, 3:32 PM CDT (20:32 UTC)

Expired

Aug 11, 2003, 4:30 PM CDT

In force

58 min

Issued by

NWS Austin/San Antonio, TX

Area

Counties, with a storm outline in the text

County Medina County, TX

The Austin/San Antonio radar (KEWX), 104 km from the middle of the area, began a volume at 20:35 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WUUS54 KEWX 112032
SVRSAT
TXC325-112130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
332 PM CDT MON AUG 11 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  MEDINA

* UNTIL 430 PM CDT

* AT 332 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER CASTROVILLE...OR ABOUT 4 MILES NORTHEAST
  OF CASTROVILLE...MOVING SOUTHWEST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  OVER CASTROVILLE AT 340 PM
  5 MILES NORTHWEST OF NATALIA AT 400 PM
  4 MILES NORTHWEST OF DEVINE AT 415 PM

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  RIO MEDINA
  CASTROVILLE
  NATALIA
  DEVINE

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...AND DEADLY
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.


LAT...LON 2920 9925 2911 9884 2939 9882 2963 9883

$$

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 3:20 PM CDT, 12 minutes earlier.

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
320 PM CDT MON AUG 11 2003

NORTHERLY FLOW ALOFT BRINGING DISTURBANCES TO SOUTH CENTRAL TEXAS
EARLY THIS AFTERNOON.  GOOD CAPES AND DAYTIME HEATING PRODUCING
NICE THUNDERSTORMS WITH SOME ISOLATED DOWNBURSTS...THIS CONDITION
LIKELY TO PERSIST THROUGH THE EARLY EVENING HOURS AND SPC HAS ISSUED
A SEVERE THUNDERSTORM WATCH #857 AS A RESULT.  CONTINUED NORTHERLY
FLOW AND WEAK IMPULSES WILL RESULT IN CHANCES THROUGH TONIGHT AND
TUESDAY.

TROPICAL WAVE WILL MOVE WEST INTO THE AREA TOMORROW NIGHT AND
WEDNESDAY WITH MODERATING DAYTIME TEMPERATURES AND A CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH THURSDAY AS MOISTURE PLUME WILL BE
FAVORABLE.  LATE IN THE WEEK RIDGING BUILDS IN FROM THE MIDWEST AND
LOW MIGRATING INTO MEXICO...SW U.S. THIS SHOULD LOWER RAIN CHANCES
FOR US SOMEWHAT BY NEXT WEEKEND.

.EWX...SEVERE THUNDERSTORM WATCH NUMBER 857 FOR EASTERN TWO-THIRDS
OF SOUTH CENTRAL TEXAS TIL 8 PM CDT...

02/18/KW

PRELIMS...
AUS BE 072/089 070/087 070 02344 0000/0000/0000
    EBBBB 093/071 096/073 095/071 096/075 097 44332222222
DRT BE 077/094 071/092 069 02333 0000/0000/0000
    EBBBB 089/072 093/074 095/076 097/078 098 34442222222
SAT BE 073/092 071/088 072 02344 0000/0000/0000
    EBBBB 091/073 095/075 093/077 094/077 097 44332222222

TXZ171>173-183>194-202>209-217>225-228-121100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 AM CDT MON AUG 11 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY.
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING ACROSS SOUTH CENTRAL TEXAS AND THE HILL COUNTRY.  ANOTHER
UPPER LEVEL DISTURBANCE IN THE NORTHERLY FLOW ALOFT WILL APPROACH
THE REGION THIS AFTERNOON AND WILL COMBINE WITH DAYTIME HEATING TO
TRIGGER ISOLATED SEVERE THUNDERSTORMS.  THE PRIMARY THREATS WILL BE
DAMAGING WINDS AND LARGE HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
THE CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE
WEEK AND EXTEND INTO THE WEEKEND.  THE BEST CHANCE OF SHOWERS AND
THUNDERSTORMS THIS WEEK WILL BE ON THURSDAY WHEN DEEP TROPICAL
MOISTURE OVERSPREADS THE REGION.  HEAVY RAINFALL WILL BE THE PRIMARY
THREAT FOR THURSDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED.

Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm warning in 2003

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.