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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 251

NWS STORM PREDICTION CENTER NORMAN OK

1125 PM CDT FRI JUN 6 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWEST THROUGH NORTHEAST OKLAHOMA



* EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1125 PM

  UNTIL 500 AM CDT.



* PRIMARY THREATS INCLUDE...

  WIDESPREAD DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES EAST

SOUTHEAST OF FORT SILL OKLAHOMA TO 15 MILES NORTH OF BARTLESVILLE

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 247...WW 248...WW

249...WW 250...



DISCUSSION...WRN OK SQLN WITH EMBEDDED LEWPS AND LOW-AMPLITUDE

BOWS/SUPERCELLS EXPECTED TO CONTINUE GENERALLY EWD THROUGH EARLY

SAT. STRONGEST UPDRAFTS MAY TEND TO BUILD SLIGHTLY S OF E WITH TIME

AS SQLN FURTHER ENCOUNTERS THETA-E GRADIENT/OLD OUTFLOW BOUNDARY

STALLED ROUGHLY WNW-ESE FROM W CNTRL TO S CNTRL OK. UPLIFT IN EXIT

REGION OF 30-35 KT SLY LLJ SHOULD CONTINUE TO PROMOTE STRONG STORM

DEVELOPMENT...WITH FAIRLY HIGH PW /AOA 1.25 IN/ AUGMENTING RISK FOR

DMGG SFC GUSTS. ALSO...A TORNADO OR TWO CANNOT BE RULED OUT IN

ASSOCIATION WITH EMBEDDED MESOVORTICES.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM

MOTION VECTOR 26030.





...CORFIDI

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