

000 

WWUS20 KWNS 041744

SEL2

SPC WW 041744

INZ000-KYZ000-MDZ000-OHZ000-PAZ000-WVZ000-050100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 482

NWS STORM PREDICTION CENTER NORMAN OK

145 PM EDT WED JUL 4 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST INDIANA

       NORTHEAST KENTUCKY

       FAR WESTERN MARYLAND

       SOUTHERN AND CENTRAL OHIO

       SOUTHWEST PENNSYLVANIA

       NORTHERN AND CENTRAL WEST VIRGINIA



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 145 PM UNTIL

900 PM EDT.



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

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST OF CINCINNATI

OHIO TO 25 MILES SOUTH OF LATROBE PENNSYLVANIA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU2).



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.



DISCUSSION...TSTMS/POSSIBLE SUPERCELLS EXPECTED TO POSE AN

INCREASING RISK FOR ISOLATED TORNADOES...IN ADDITION TO HIGH WIND

AND POSSIBLE HAIL... AS HEATING CONTINUES IN WEAKLY

CONFLUENT/MOISTENING WSW LOW LVL FLOW.  MODERATE DEEP NWLY SHEAR

WITH INCREASING DIRECTIONAL COMPONENT WITH ERN EXTENT MAY ENHANCE

POTENTIAL FOR STORMS TO REMAIN SEMI-DISCRETE.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 29030.





...CORFIDI

