

818 

WWUS20 KWNS 110917

SEL3

SPC WW 110917

TXZ000-111600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 163

NWS STORM PREDICTION CENTER NORMAN OK

420 AM CDT MON MAY 11 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTH-CENTRAL AND SOUTHWEST TEXAS



* EFFECTIVE THIS MONDAY MORNING FROM 420 AM UNTIL 1100 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...INITIALLY ISOLATED SEVERE THUNDERSTORMS OVER THE SOUTHERN

EDWARDS PLATEAU REGION ARE EXPANDING IN COVERAGE AND MAY CONTINUE TO

DO SO AS ACTIVITY MOVES INTO FAVORABLY UNSTABLE AIR MASS AHEAD OF A

SLOW-MOVING COLD FRONT.  LARGE HAIL AND ISOLATED SEVERE GUSTS ARE

EXPECTED FROM THE MOST INTENSE CELLS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES EITHER SIDE OF A LINE FROM 110 MILES WEST OF HONDO

TEXAS TO 45 MILES EAST OF AUSTIN TEXAS.  FOR A COMPLETE DEPICTION

OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS

WOU3).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 162...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27025.





...EDWARDS



414 

WWUS20 KWNS 110917

SEL3

SPC WW 110917

TXZ000-111600-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 163

NWS STORM PREDICTION CENTER NORMAN OK

420 AM CDT MON MAY 11 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTH-CENTRAL AND SOUTHWEST TEXAS



* EFFECTIVE THIS MONDAY MORNING FROM 420 AM UNTIL 1100 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...INITIALLY ISOLATED SEVERE THUNDERSTORMS OVER THE SOUTHERN

EDWARDS PLATEAU REGION ARE EXPANDING IN COVERAGE AND MAY CONTINUE TO

DO SO AS ACTIVITY MOVES INTO FAVORABLY UNSTABLE AIR MASS AHEAD OF A

SLOW-MOVING COLD FRONT.  LARGE HAIL AND ISOLATED SEVERE GUSTS ARE

EXPECTED FROM THE MOST INTENSE CELLS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES EITHER SIDE OF A LINE FROM 110 MILES WEST OF HONDO

TEXAS TO 45 MILES EAST OF AUSTIN TEXAS.  FOR A COMPLETE DEPICTION

OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS

WOU3).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 162...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 27025.





...EDWARDS

