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