URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 494 STORM PREDICTION CENTER NORMAN OK 1246 PM EDT SUN JUN 25 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF WESTERN MASSACHUSETTS NORTHWEST MAINE CENTRAL AND NORTHERN NEW HAMPSHIRE CENTRAL AND EASTERN NEW YORK VERMONT EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 100 PM UNTIL 600 PM EDT. TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES EAST OF BINGHAMTON NEW YORK TO 25 MILES EAST NORTHEAST OF NEWPORT VERMONT. 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...THREAT FOR LOW-LEVEL STORM ROTATION AND A FEW TORNADOES WILL EXIST ACROSS WATCH AREA THIS AFTERNOON...WHERE BOUNDARY LAYER WINDS WILL REMAIN SLY BENEATH 50+KT MID LEVEL SWLY FLOW ASSOCIATED WITH EXITING JET MAX. WHILE LAPSE RATES ARE NOT STEEP...SUFFICIENT MOISTURE AND CONVERGENCE APPEAR PRESENT TO SUPPORT STORM DEVELOPMENT AS HEATING CONTINUES THROUGH THE AFTERNOON FROM ERN NY NEWD INTO NRN/WRN NEW ENGLAND. AVIATION...TORNADOES AND 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 24035. ...CORFIDI