

592 

WWUS20 KWNS 110412

SEL0

SPC WW 110412

INZ000-KYZ000-111000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 370

NWS STORM PREDICTION CENTER NORMAN OK

1205 AM EDT THU JUN 11 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN AND SOUTH CENTRAL INDIANA

       WESTERN AND NORTHERN KENTUCKY



EFFECTIVE THIS THURSDAY MORNING FROM 1205 AM UNTIL 600 AM EDT.



TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF

BLOOMINGTON INDIANA TO 35 MILES SOUTHWEST OF OWENSBORO KENTUCKY.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 367...WW 368...WW 369...



DISCUSSION...ENHANCED VERY MOIST SWLY LOW LVL FLOW ACROSS NE AR AND

WRN TN/KY ATTM SHOULD CONTINUE TO SPREAD NE INTO THE LWR OH VLY

OVERNIGHT... AHEAD OF WEAK UPR VORT/AND POSSIBLE MCV IN MO.  TSTMS

EXPECTED TO CONTINUE AND POSSIBLY INCREASE ALONG WARM FRONT SEGMENT

OVER PARTS OF IND/N CNTRL KY AS THIS OCCURS.  GIVEN VERY MOIST

ENVIRONMENT... SEMI-DISCRETE NATURE OF EXISTING STORMS...AND BACKED

NEAR-SFC FLOW NEAR FRONT...POTENTIAL WILL EXIST FOR A COUPLE

TORNADOES...IN ADDITION TO MARGINALLY SVR HAIL.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 25035.





...CORFIDI

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