CONCERNING...SEVERE THUNDERSTORM WATCH
Posted by JAC on 6/9/2011, 4:52 pm


MESOSCALE DISCUSSION 1157
  NWS STORM PREDICTION CENTER NORMAN OK
  0317 PM CDT THU JUN 09 2011
 
  AREAS AFFECTED...THE LOWER HUDSON VALLEY AND SOUTHERN NEW ENGLAND
 
  CONCERNING...SEVERE THUNDERSTORM WATCH 452...
 
  VALID 092017Z - 092145Z
 
  THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 452
  CONTINUES.
 
  THE SOUTHEASTWARD ADVANCING SQUALL LINE IS NOW ENCOUNTERING A
  STRONGLY HEATED AND VERY UNSTABLE ENVIRONMENT NEAR THE PRE-FRONTAL
  SURFACE TROUGH.  RAPID INTENSIFICATION HAS ALREADY BEEN OCCURRING
  NEAR THE BERKSHIRES INTO THE HUDSON VALLEY...AND FURTHER
  STRENGTHENING OF STORMS APPEARS LIKELY THROUGH 21-22Z AS ACTIVITY
  SPREADS INTO THE GREATER BOSTON AND NEW YORK METROPOLITAN AREAS.
  FREQUENT CLOUD TO GROUND LIGHTNING AND HAIL ARE LIKELY...WITH AN
  INCREASING DAMAGING WIND THREAT PROBABLE WITH FURTHER STRENGTHENING
  OF THE CONVECTIVELY GENERATED COLD POOL.
 
  ..KERR.. 06/09/2011
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Squall Line could hit NYC around Rush Hour - JAC, 6/9/2011, 2:53 pm
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