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WWUS20 KWNS 150630

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OKZ000-151400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 299

NWS STORM PREDICTION CENTER NORMAN OK

130 AM CDT SUN JUN 15 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHERN OKLAHOMA



* EFFECTIVE THIS SUNDAY MORNING FROM 130 AM UNTIL 900 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 110

STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES EAST

NORTHEAST OF ALVA OKLAHOMA TO 25 MILES WEST SOUTHWEST OF ENID

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 296...WW 297...WW 298...



DISCUSSION...SRN END OF CNTRL KS SQLN EXPECTED TO CONTINUE BUILDING

SLIGHTLY SWD WHILE CONTINUING TO MOVE GENERALLY EWD GIVEN CURRENT

AND EXPECTED THERMODYNAMIC/WIND ENVIRONMENTS. DEGREE OF BUOYANCY AND

STRENGTH OF MEAN LWR TROPOSPHERIC FLOW SUGGEST POTENTIAL FOR DMGG

WIND GUSTS AND POSSIBLY SVR HAIL DESPITE FACT THAT SYSTEM GUST FRONT

LIKELY WILL REMAIN 10-15 MILES AHEAD OF STRONGEST STORM CORES.



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 550. MEAN STORM

MOTION VECTOR 29040.





...CORFIDI

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