MESOSCALE DISCUSSION 1056
   NWS STORM PREDICTION CENTER NORMAN OK
   0447 PM CDT WED JUN 01 2011
   
   AREAS AFFECTED...ERN MA...SERN CT
   
   CONCERNING...TORNADO WATCH 411...
   
   VALID 012147Z - 012245Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 411 CONTINUES.
   
   ONGOING SEVERE CONVECTION...INCLUDING A CLASSIC
   SUPERCELL...CONTINUES TRACKING EWD ACROSS PORTIONS OF MA AND CT.
   WHILE LOW-LEVEL PARCEL TRAJECTORIES OFF THE WRN ATLANTIC LEADING
   THIS CONVECTION ARE SUPPORTING SOME WEAK CONVECTIVE INHIBITION EAST
   OF TORNADO WATCH 411...EFFECTIVE BULK SHEAR MAGNITUDES OF 40-45 KT
   COMBINED WITH MUCAPE VALUES AROUND 3000 J/KG WILL MAINTAIN AT LEAST
   A THREAT FOR ELEVATED SEVERE CONVECTION TO THE COASTLINE. THE
   PRIMARY THREAT COULD EVOLVE TOWARD LARGE HAIL OVER THE NEXT COUPLE
   OF HOURS. HOWEVER...DCAPE VALUES IN EXCESS OF 1000 J/KG WILL SUPPORT
   A CONTINUING DMGG WIND POTENTIAL. THE POTENTIAL FOR A FEW TORNADOES
   MAY ALSO BE MAINTAINED GIVEN EFFECTIVE SRH VALUES AROUND 300
   M2/S2...PARTICULARLY WHERE THE MARINE LAYER IS RELATIVELY MORE
   SHALLOW. FOR THESE REASONS...THE TORNADO WATCH IS BEING EXPANDED
   EASTWARD TOWARD THE COAST UPON COORDINATION WITH THE TAUNTON WEATHER
   FORECAST OFFICE.
   
   ..COHEN.. 06/01/2011
   
   
   ATTN...WFO...BOX...
   
   LAT...LON   41537165 41667158 41867128 42357093 42137021 41537036
               41227071 41297148 41537165