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385 

WWUS20 KWNS 230534

SEL8

SPC WW 230534

INZ000-KYZ000-231000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 8

NWS STORM PREDICTION CENTER NORMAN OK

1235 AM EST MON JAN 23 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN INDIANA

       CENTRAL KENTUCKY



EFFECTIVE THIS MONDAY MORNING FROM 1235 AM UNTIL 500 AM EST.



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 55

STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH

NORTHWEST OF LOUISVILLE KENTUCKY TO 25 MILES SOUTH SOUTHEAST OF

BOWLING GREEN KENTUCKY.  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 6...WW 7...



DISCUSSION...EXTENSIVE SQUALL LINE WILL CONTINUE TO SURGE EWD ACROSS

INDIANA AND KY OVERNIGHT...IN ADVANCE OF A STRONG SHORTWAVE TROUGH

EJECTING NEWD FROM AR/MO.  THE CONVECTION APPEARS TO BE SLIGHTLY

ELEVATED AT THIS POINT...AND THE NARROW SURFACE-BASED WARM SECTOR

WILL LIKELY REMAIN PINCHED OFF FARTHER TO THE SW ACROSS WRN KY/TN.

THUS...DAMAGING WINDS WILL BE THE PRIMARY SEVERE STORM THREAT GIVEN

VERY STRONG ENVIRONMENTAL FLOW AND THE POTENTIAL FOR MOMENTUM

TRANSFER DOWN THROUGH THE SHALLOW NEAR-SURFACE STABLE LAYER.



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 450. MEAN STORM MOTION

VECTOR 25045.





...THOMPSON

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