US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 1827

Published Date and Time: 2026-08-03 12:14:00



   Mesoscale Discussion 1827
   NWS Storm Prediction Center Norman OK
   1113 AM CDT Mon Aug 03 2026

   Areas affected...portions of New England

   Concerning...Severe potential...Watch unlikely 

   Valid 031613Z - 031815Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Sporadic strong wind gusts, and possibly a weak/brief
   tornado, are possible through the afternoon. The overall risk is
   expected to remain limited, and a watch is not currently expected.

   DISCUSSION...Convection is gradually increasing in
   coverage/intensity ahead of a surface cold near the NY/VT border
   early this afternoon. Broken clouds have muted stronger heating, but
   temperatures have risen modestly into the mid 70s to near 80 F amid
   a very moist airmass (upper 60s to low 70s dewpoints). This is
   resulting in a corridor of weak destabilization across portions of
   New England, with continued destabilization expected through the
   afternoon with eastward extent toward western ME. Increasing
   southwesterly flow aloft is aiding in effective shear magnitudes
   greater than 45 kt across the region, with will allow for transient
   storm organization despite weak instability. 

   Sporadic strong wind gusts will be possible through the afternoon as
   the surface front gradually pushes eastward. Where pockets of
   stronger heating occur and where backed surface flow is maintained,
   a brief/weak spin-up also is possible. However, given weak
   instability and poor lapse rate environment, the overall severe risk
   should remain limited, and a watch is not currently expected.

   ..Leitman/Gleason.. 08/03/2026

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

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

   LAT...LON   44997322 45457160 45347063 44787023 43767015 42657105
               41987217 41957276 42177333 42497367 42947387 44997322 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH



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