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000 

WWUS20 KWNS 240151

SEL2

SPC WW 240151

CTZ000-MAZ000-NJZ000-NYZ000-RIZ000-CWZ000-240900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 742

NWS STORM PREDICTION CENTER NORMAN OK

950 PM EDT WED JUL 23 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CONNECTICUT

       MASSACHUSETTS

       NORTHERN NEW JERSEY

       SOUTHEAST NEW YORK

       RHODE ISLAND

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 950 PM

UNTIL 500 AM EDT.



HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTHEAST OF

ISLIP NEW YORK TO 40 MILES NORTHWEST OF WORCESTER MASSACHUSETTS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 738. WATCH NUMBER 738 WILL NOT

BE IN EFFECT AFTER 950 PM EDT. CONTINUE...WW 739...WW 740...WW

741...



DISCUSSION...CLUSTERS AND BANDS OF INTENSE STORMS ARE EXPECTED TO

CONTINUE TO DEVELOP ACROSS NYC-BOS CORRIDOR AND PARTS OF THE LOWER

HUDSON VALLEY AND BERKSHIRES OF WRN MA THROUGH LATE TONIGHT. THIS

ACTIVITY IS BEING FUELED BY STRONG INFLUX OF HIGH PW AIR AND

INTENSIFYING DYNAMICS ASSOCIATED WITH NEGATIVE-TILT SHORT WAVE

TROUGH MOVING EAST FROM THE OH VALLEY. WHILE HEAVY RAIN/FLOODING MAY

BE A GREATER THREAT...STORMS/CELLS MAY OCCASIONALLY ATTAIN

SUFFICIENT ORGANIZATION/PERSISTENCE TO POSE A CHANCE FOR DAMAGING

WINDS AND PERHAPS EVEN AN ISOLATED TORNADO INTO EARLY THURSDAY

MORNING.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION

VECTOR 20030.





...CARBIN

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