

752 

WWUS20 KWNS 152205

SEL0

SPC WW 152205

INZ000-KYZ000-160300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 480

NWS STORM PREDICTION CENTER NORMAN OK

605 PM EDT WED JUN 15 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       PARTS OF SOUTHWEST INDIANA

       MUCH OF CENTRAL KENTUCKY



EFFECTIVE THIS WEDNESDAY EVENING FROM 605 PM UNTIL 1100 PM EDT.



HAIL TO 2 INCHES 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 55

STATUTE MILES EAST AND WEST OF A LINE FROM 80 MILES NORTHWEST OF

LOUISVILLE KENTUCKY TO 30 MILES SOUTHEAST OF BOWLING GREEN

KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 478...WW 479...



DISCUSSION...AIR MASS HAS DESTABILIZED IN WAKE OF EARLIER ACTIVITY

ACROSS THE WATCH. WITH MLCAPES NOW IN EXCESS OF 2000 J/KG POTENTIAL

FOR SEVERE THUNDERSTORMS HAS INCREASED WITH POSSIBLE BRIEF

SUPERCELLS. PRIMARY THREAT WILL BE LARGE HAIL AND DAMAGING DOWNBURST

WINDS THRU THE EVENING.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 28030.





...HALES

