Mesoscale Discussion 1574
   NWS Storm Prediction Center Norman OK
   0511 PM CDT Tue Aug 25 2020

   Areas affected...Portions of southern New England and the Northeast

   Concerning...Severe Thunderstorm Watch 450...

   Valid 252211Z - 260015Z

   The severe weather threat for Severe Thunderstorm Watch 450
   continues.

   SUMMARY...Isolated damaging winds, and perhaps an instance of severe
   hail, will continue to be possible within WW 450 for the next couple
   of hours.

   DISCUSSION...Recent radar trends continue to show scattered
   thunderstorms translating eastward across New England in tandem with
   a surface trough. Although storm coverage should remain relatively
   limited, ongoing convection will continue to reside within a
   sufficiently unstable air mass (1000-2000 J/kg MLCAPE) along and
   ahead of the trough with around 40 knots of effective shear that is
   supportive of periodic storm organization intensification. Several
   damaging wind reports have been noted within the past hour, and this
   trend of isolated wind damage will likely continue before storms
   move off shore. Given the CAPE/shear parameter space, an instance of
   severe hail will remain possible with any storm that can remain
   isolated, but a gradual increase in cluster/linear modes will limit
   this potential.

   ..Moore.. 08/25/2020

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...GYX...BOX...OKX...ALY...PHI...BGM...CTP...

   LAT...LON   41197632 41377464 42317323 43037193 42877099 42307053
               41857010 41487024 40887181 40367306 40227401 40537575
               41197632