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WWUS20 KWNS 040847

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 275

NWS STORM PREDICTION CENTER NORMAN OK

345 AM CDT TUE JUN 4 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWESTERN...CENTRAL...AND SOUTH CENTRAL OKLAHOMA

  NORTHWEST TEXAS



* EFFECTIVE THIS TUESDAY MORNING FROM 345 AM UNTIL 900 AM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A FEW LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES WEST

SOUTHWEST OF ALTUS OKLAHOMA TO 55 MILES NORTH NORTHEAST OF DURANT

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 274...



DISCUSSION...CLUSTERS OF STRONG/LOCALLY SEVERE THUNDERSTORMS

CONTINUE MOVING GENERALLY SEWD ACROSS CENTRAL AND WRN OK...AND

ADJACENT PORTIONS OF NWRN TX AND SERN PORTIONS OF THE TX

PANHANDLE...AIDED BY 40-PLUS KT SWLY LOW-LEVEL JET.  MOST OF THE

CONVECTION -- PARTICULARLY ACROSS OK -- REMAINS ELEVATED...AND THUS

EXPECT HAIL TO BE THE MAIN SEVERE THREAT ALONG WITH A FEW LOCALLY

DAMAGING GUSTS ACROSS THE WW AREA AS STORMS PERSIST OVER THE NEXT

SEVERAL HOURS.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 29040.





...GOSS

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