

007 

WWUS20 KWNS 100305

SEL0

SPC WW 100305

INZ000-KYZ000-OHZ000-100700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 570

NWS STORM PREDICTION CENTER NORMAN OK

1105 PM EDT THU AUG 9 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR SOUTHEAST INDIANA

       FAR NORTHERN KENTUCKY

       FAR WESTERN OHIO



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1105 PM

UNTIL 300 AM EDT.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 25

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH OF

DAYTON OHIO TO 25 MILES SOUTH SOUTHWEST OF CINCINNATI OHIO.  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 569...



DISCUSSION...LOOSELY-ORGANIZED SQLN WITH EMBEDDED SUSTAINED STORMS

IN ERN INDIANA EXPECTED TO CONTINUE E INTO FAR WRN OH LATER THIS

EVE/EARLY FRI.  AREA VWP DATA UPSTREAM ACROSS CNTRL INDIANA AND ERN

IL...AND INCREASING LARGE SCALE ASCENT ASSOCIATED WITH AMPLIFYING

UPR IMPULSE NOW OVER IL...SUGGEST THAT STORMS MAY REMAIN

SUFFICIENTLY ORGANIZED TO POSE A RISK FOR ISOLD DMGG WIND EWD INTO

FAR WRN OH/NRN KY...DESPITE ENCOUNTERING LOW LVL OUTFLOW LEFT BY

EARLIER STORMS.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS.

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

VECTOR 29025.





...CORFIDI

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