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Severe Thunderstorm Watch 724
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WW0724 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Very Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 724
   NWS STORM PREDICTION CENTER NORMAN OK
   1040 PM EDT THU AUG 20 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL NEW YORK
          LAKE ONTARIO
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1040 PM
   UNTIL 100 AM EDT.
   
   HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES WEST
   SOUTHWEST OF ELMIRA NEW YORK TO 30 MILES NORTH NORTHWEST OF
   WATERTOWN NEW YORK.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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...CONTINUE...WW 722...WW 723...
   
   DISCUSSION...QLCS WITH EMBEDDED LEWPS/SMALL BOWING SEGMENTS WILL
   CONTINUE GENERALLY ENE...WITH AN ISOLD STORM OR TWO AHEAD OF LINE. 
   NOCTURNAL COOLING SHOULD RESULT IN GRADUAL WEAKENING OF CONVECTION
   LATER THIS EVENING.  BUT GIVEN MOIST LOW LVL ENVIRONMENT AND
   STRENGTH OF DEEP WIND FIELD...POTENTIAL FOR ISOLD SVR LIKELY WILL
   LINGER FOR A COUPLE MORE HOURS.
   
   AVIATION...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 23030.
   
   
   ...CORFIDI
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Page last modified: August 21, 2009
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