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079 

WWUS20 KWNS 102211

SEL9

SPC WW 102211

OKZ000-TXZ000-110300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 79

NWS STORM PREDICTION CENTER NORMAN OK

510 PM CDT SUN APR 10 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WESTERN AND CENTRAL OKLAHOMA

  EXTREME NORTHWEST TEXAS



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 510 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND 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...CLUSTERS OF THUNDERSTORMS WILL DEVELOP AND SPREAD

NORTHEASTWARD THROUGH LATE EVENING TOWARD CENTRAL OKLAHOMA.  THE

STORM ENVIRONMENT WILL BECOME FAVORABLE FOR SUPERCELLS WITH LARGE

HAIL AND ISOLATED DAMAGING WINDS THIS EVENING. THE TORNADO RISK WILL

BE MARGINAL AT BEST FOR THE NEXT FEW HOURS...BUT SOUTHWEST INTO

CENTRAL OKLAHOMA WILL CONTINUE TO BE MONITORED FOR ANY INCREASE IN

TORNADO RISK AFTER SUNSET.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES WEST

NORTHWEST OF FORT SILL OKLAHOMA TO 15 MILES SOUTH SOUTHEAST OF

CHANDLER OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 78...



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 500. MEAN STORM

MOTION VECTOR 24030.





...THOMPSON

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