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Mesoscale Discussion 763
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   MESOSCALE DISCUSSION 0763
   NWS STORM PREDICTION CENTER NORMAN OK
   0729 PM CDT TUE MAY 21 2013
   
   AREAS AFFECTED...UPSTATE NY / SRN PARTS OF VT AND NH / WRN AND CNTRL
   MA / NRN PARTS OF CT AND RI
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 203...204...
   
   VALID 220029Z - 220130Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   203...204...CONTINUES.
   
   SUMMARY...THE THREAT FOR DAMAGING WINDS AND HAIL MAY CONTINUE BEYOND
   THE 01Z EXPIRATION OF SEVERE THUNDERSTORM WATCHES 203 AND 204.  A
   LOCAL EXTENSION OF PORTIONS OF WW 203 AREA MAY BE NECESSARY.
   
   DISCUSSION...AS OF 00Z...REGIONAL RADAR IMAGERY SHOWED A LOOSELY
   ORGANIZED MCS FROM CLINTON AND ESSEX COUNTIES TO MADISON AND
   CHENANGO COUNTIES IN NY WITH AN EWD SYSTEM MOTION OF 35-40 KT. 
   WHILE THE NRN EXTENT OF THIS MCS WILL MOVE INTO A PROGRESSIVELY
   COOLER AND MORE STABLE AIR MASS IN PLACE OVER NRN VT...THE SRN
   PORTION WILL MAINTAIN AN INFLOW OF AT LEAST MODEST INSTABILITY /SEE
   00Z ALB SOUNDING/...SUGGESTING A CONTINUED DAMAGING WIND AND HAIL
   THREAT AS IT MOVES INTO THE HUDSON VALLEY.  OVER WRN AND CNTRL PARTS
   OF NY...ISOLATED OCCURRENCES OF MARGINALLY SEVERE HAIL WILL REMAIN
   POSSIBLE OVER THE NEXT HOUR OR TWO WITH STORMS DEVELOPING ALONG THE
   OUTFLOW BOUNDARY TRAILING THE MCS.
   
   ..MEAD.. 05/22/2013
   
   
   ATTN...WFO...BOX...BTV...OKX...ALY...BGM...BUF...
   
   LAT...LON   43177877 43307690 43587522 44027437 43787331 43337307
               43007213 42407161 41897151 41677217 41577387 41677490
               42147568 42077718 42197811 42167886 42447916 42927886
               43177877 
   
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