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Mesoscale Discussion 1674
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   Mesoscale Discussion 1674
   NWS Storm Prediction Center Norman OK
   0518 PM CDT Thu Sep 03 2020

   Areas affected...Maryland...Delaware...southeast
   Pennsylvania...southern New Jersey

   Concerning...Tornado Watch 485...

   Valid 032218Z - 040015Z

   The severe weather threat for Tornado Watch 485 continues.

   SUMMARY...The primary short-term threat for a brief tornado or
   damaging wind gusts currently exists from eastern Maryland into
   Delaware.

   DISCUSSION...A long-lived cluster of storms has recently shown
   stronger supercell characteristics with the leading cell, now moving
   east of Annapolis and crossing over the Bay. Radar shows
   considerable wrapping of precipitation around the broader
   mesocyclone circulation, which could result in a several-mile-wide
   area of wind damage in addition to sporadic touchdowns.

   This threat will likely persist for an hour or two as it moves into
   DE, when it will eventually interact with a cooler surface air mass
   from the sea breeze.

   ..Jewell.. 09/03/2020

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

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

   LAT...LON   39177632 39137541 38927516 38737503 38587511 38607545
               38727618 38877657 38967667 39077657 39177632 

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Page last modified: September 04, 2020
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