SWOMCD
SPC MCD 051617
NHZ000-MAZ000-VTZ000-NYZ000-051715-
MESOSCALE DISCUSSION 0813
NWS STORM PREDICTION CENTER NORMAN OK
1117 AM CDT SAT JUN 05 2010
AREAS AFFECTED...NY...VT...MA...NH
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 051617Z - 051715Z
CU FIELD IS EXPANDING RAPIDLY OVER THE HIGHER TERRAIN OF UPSTATE NY.
WITHIN THIS DESTABILIZING AIRMASS A FEW SHOWERS HAVE ALREADY
DEVELOPED AND CURRENT THINKING IS ISOLATED THUNDERSTORMS WILL EVOLVE
OVER THE NEXT FEW HOURS. ENVIRONMENTAL CONDITIONS ARE BECOMING
QUITE FAVORABLE FOR DISCRETE SUPERCELL STRUCTURES AHEAD OF
FAST-MOVING WEAK SHORTWAVE TROUGH. LATEST FORECAST SOUNDINGS
SUGGEST ANY STORMS THAT EVOLVE WITHIN DEEP WLY FLOW REGIME WILL
LIKELY PROPAGATE SEWD INTO AN AIRMASS CHARACTERIZED BY STEEP LOW
LEVEL LAPSE RATES. LARGE HAIL...DAMAGING WINDS AND PERHAPS
TORNADOES COULD OCCUR WITH ANY SUPERCELL STRUCTURE ACROSS THIS
REGION.
..DARROW.. 06/05/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...GYX...BOX...BTV...ALY...
LAT...LON 42157395 44747353 44647122 42297155 42157395
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