

767 

WWUS20 KWNS 230715

SEL9

SPC WW 230715

INZ000-KYZ000-OHZ000-231400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 9

NWS STORM PREDICTION CENTER NORMAN OK

215 AM EST MON JAN 23 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHEASTERN INDIANA

       CENTRAL AND EASTERN KENTUCKY

       SOUTHERN OHIO



EFFECTIVE THIS MONDAY MORNING FROM 215 AM UNTIL 900 AM EST.



HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70

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

CINCINNATI OHIO TO 50 MILES SOUTHWEST OF LONDON KENTUCKY.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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 7...WW 8...



DISCUSSION...CNTRL IND/KY SQLN EXPECTED TO CONTINUE EWD INTO OH AND

ERN KY THROUGH LATER THIS MORNING.  AREA VWP DATA SHOW STRENGTHENING

SSWLY LLJ IMMEDIATELY AHEAD OF LINE...WITH 850 MB SPEEDS NOW AROUND

80 KTS.  THE LLJ SHOULD REMAIN STRONG AS ASSOCIATED UPR VORT NOW

ENTERING WRN KY ASSUMES MORE OF A NEGATIVE TILT AND HEADS NEWD.

THUS...DESPITE INCREASINGLY MORE HOSTILE LOW-LVL THERMODYNAMIC

ENVIRONMENT FOR SVR SFC WINDS WITH EWD EXTENT...COMBINATION OF

INCREASING NEAR-SFC FLOW WITH INCREASING DPVA AND RISING TERRAIN MAY

SUPPORT A CONTINUED RISK FOR DMGG WIND EWD INTO WW AREA.



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

TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 300. MEAN STORM

MOTION VECTOR 24045.





...CORFIDI

