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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 263

NWS STORM PREDICTION CENTER NORMAN OK

145 PM EDT SAT JUN 5 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN CONNECTICUT

       CENTRAL AND EASTERN MASSACHUSETTS

       WESTERN MAINE

       NEW HAMPSHIRE

       RHODE ISLAND

       COASTAL WATERS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 145 PM UNTIL

1000 PM EDT.



TORNADOES...HAIL TO 2 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 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES EAST NORTHEAST OF

BERLIN NEW HAMPSHIRE TO 30 MILES SOUTHWEST OF PROVIDENCE RHODE

ISLAND.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



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.



OTHER WATCH INFORMATION...CONTINUE...WW 262...



DISCUSSION...AS UPPER DIFFLUENCE SPREADS IN FROM THE WEST...STORMS

WILL INCREASE IN NUMBER AND INTENSITY THROUGH THE AFTERNOON. DEEP

LAYER SHEAR IS FAVORABLE FOR DISCRETE SUPERCELLS. THE ENVIRONMENT IS

MOST FAVORABLE FOR VERY LARGE HAIL...THOUGH TORNADOES WOULD BE

POSSIBLE WITH RIGHT MOVING SUPERCELLS



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

450. MEAN STORM MOTION VECTOR 28030.





...IMY

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