

706 

WWUS20 KWNS 280049

SEL0

SPC WW 280049

OKZ000-280500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 380

NWS STORM PREDICTION CENTER NORMAN OK

750 PM CDT THU JUN 27 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  A SMALL PART OF NORTHEAST OKLAHOMA



* EFFECTIVE THIS THURSDAY NIGHT FROM 750 PM UNTIL MIDNIGHT CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A FEW LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST

SOUTHWEST OF BARTLESVILLE OKLAHOMA TO 15 MILES NORTH NORTHEAST OF

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

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 377...WW 378...WW 379...



DISCUSSION...A SQUALL LINE WILL CONTINUE TO MOVE SEWD FROM KS INTO N

CENTRAL AND NE OK...WITH A RISK FOR DAMAGING GUSTS AND ISOLATED

LARGE HAIL FOR THE NEXT FEW HOURS.  THE EASTERN EXTENT OF THE SEVERE

WEATHER THREAT IS A BIT UNCERTAIN...AND STORMS SHOULD BEGIN TO

WEAKEN DURING THE EARLY OVERNIGHT HOURS AS THE LOW LEVELS BEGIN TO

STABILIZE.



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 600. MEAN STORM MOTION

VECTOR 33035.





...THOMPSON

