Storm Prediction Center Mesoscale Discussion 1335

   Mesoscale Discussion 1335
   NWS Storm Prediction Center Norman OK
   0316 PM CDT Fri Jun 26 2026

   Areas affected...portions of central and southern Vermont and New
   Hampshire to the South Coast of Maine.

   Concerning...Severe Thunderstorm Watch 397...

   Valid 262016Z - 262215Z

   The severe weather threat for Severe Thunderstorm Watch 397
   continues.

   SUMMARY...The threat for large hail up to 1.5" and locally severe
   wind gusts of 60-65 kt continues across the watch area.

   DISCUSSION...An earlier cluster of thunderstorms with embedded
   supercell structures that produced wind damage and some small hail
   in central Rutland County, VT has recently weakened. However, the
   lingering convection is in the vicinity of a diffuse warm front that
   extends southeast through southeastern NH. That boundary along with
   orographic ascent along favored terrain in the Green and White
   Mountains may aid in additional storm formation late this afternoon
   into early evening. Given the presence of 1000 J/kg MLCAPE and 35-45
   kt of effective bulk shear, the environment is expected to remain
   supportive of additional severe storms capable of hail up to 1.5"
   and damaging wind gusts for the next few hours.

   ..Mead.. 06/26/2026

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

   ATTN...WFO...GYX...BTV...ALY...

   LAT...LON   44067338 44247302 44267191 44117134 43787089 43477061
               43047090 42847146 42867212 43007255 43407321 44067338 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN