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969 

WWUS20 KWNS 270256

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 570

NWS STORM PREDICTION CENTER NORMAN OK

855 PM CST SAT DEC 26 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  THE EDWARDS PLATEAU OF TEXAS



* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 855 PM

  UNTIL 400 AM CST.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...STRONG/SEVERE THUNDERSTORMS WILL DEVELOP AND SPREAD

EASTWARD ACROSS THE EDWARDS PLATEAU THROUGH THE OVERNIGHT HOURS.

THE MAIN RISKS WILL BE LARGE HAIL AND DAMAGING WINDS...THOUGH A

BRIEF TORNADO CANNOT BE RULED OUT WITH STORMS BEFORE THEY MOVE NORTH

OF A COLD FRONT SAGGING SOUTHWARD ACROSS CENTRAL TEXAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH

NORTHWEST OF JUNCTION TEXAS TO 15 MILES SOUTH SOUTHEAST OF DEL

RIO TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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.



&&



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM

MOTION VECTOR 22040.





...THOMPSON

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