

576 

WWUS20 KWNS 120111

SEL2

SPC WW 120111

KSZ000-OKZ000-120900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 152

NWS STORM PREDICTION CENTER NORMAN OK

810 PM CDT TUE MAY 11 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       LARGE PART OF CENTRAL KANSAS

       PARTS OF NORTHERN OKLAHOMA



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 810 PM

UNTIL 400 AM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES WEST SOUTHWEST OF

ENID OKLAHOMA TO 5 MILES NORTHEAST OF SALINA KANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND 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.



OTHER WATCH INFORMATION...CONTINUE...WW 151...



DISCUSSION...THUNDERSTORMS EXPECTED TO INCREASE IN NUMBER AND

INTENSITY AS THE VERY UNSTABLE AIR MASS CONTINUES MOVING NWD THRU OK

INTO SRN KS. WITH MLCAPES AOA 3000 J/KG AND STRONG VEERING SHEAR

PROFILES...SUPERCELLS SHOULD BE DOMINANT STORM MODE.  IN ADDITION TO

VERY LARGE HAIL...TORNADO'S WILL BE POSSIBLE WITH ANY SUPERCELL AS

THEY DEVELOP/MOVE NEWD THRU THE WATCH THIS EVENING.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24025.





...HALES

