June 18, 2025

Storm Prediction Center Mesoscale Discussion 1348

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Mesoscale Discussion 1348
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   Mesoscale Discussion 1348
   NWS Storm Prediction Center Norman OK
   0152 PM CDT Wed Jun 18 2025

   Areas affected...Central/eastern Maryland...Delmarva...southeast
   Pennsylvania...southern New Jersey

   Concerning...Severe Thunderstorm Watch 433...

   Valid 181852Z - 182045Z

   The severe weather threat for Severe Thunderstorm Watch 433
   continues.

   SUMMARY...Damaging winds remain possible through the afternoon from
   the DelMarVa into southeast Pennsylvania and southern New Jersey.

   DISCUSSION...A cluster of storms, including some marginal
   supercells, will continue east into the DelMarVa and southern New
   Jersey. Additional attempts and storm development are also noted on
   visible satellite in southeast Pennsylvania. Given temperatures in
   the upper 80s/low 90s F ahead of the cluster, wind damage potential
   will remain through the afternoon. Storm interactions and weak
   mid-level lapse rates have not allowed the marginal supercells to
   maintain intensity. A locally greater wind damage threat could
   evolve as convection interacts with the sea breeze boundaries moving
   inland.

   ..Wendt.. 06/18/2025

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

   ATTN...WFO...PHI...AKQ...CTP...LWX...

   LAT...LON   38707712 39757699 40127689 40267647 40457557 40147466
               38597470 38417514 38707712 

   MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


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2025-06-18 19:07:03