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WWUS20 KWNS 070803

SEL8

SPC WW 070803

KSZ000-OKZ000-071500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 278

NWS STORM PREDICTION CENTER NORMAN OK

305 AM CDT MON JUN 7 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTH CENTRAL KANSAS

       NORTHWEST AND NORTH CENTRAL OKLAHOMA



EFFECTIVE THIS MONDAY MORNING FROM 305 AM UNTIL 1000 AM CDT.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH

NORTHWEST OF GAGE OKLAHOMA TO 45 MILES NORTH OF BARTLESVILLE

OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 277...



DISCUSSION...WRN/CNTRL KS MCS EXPECTED TO CONTINUE GENERALLY SSE FOR

THE NEXT FEW HOURS.  AREA VWP DATA INDICATE THAT SOME VEERING OF LLJ

HAS OCCURRED AHEAD OF SYSTEM.  THIS LIKELY EXPLAINS...IN

PART...RECENT INCREASE IN SCTD STORMS AHEAD OF MCS OVER S CNTRL KS.

MERGING OF FORWARD-PROPAGATING SEGMENTS OF MCS WITH THESE SCTD

STORMS MAY SUPPORT SWD EXTENSION OF SVR THREAT /MAINLY WIND/ INTO

NRN OK.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

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

VECTOR 33030.





...CORFIDI

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