Mesoscale Discussion 0354
   NWS Storm Prediction Center Norman OK
   0642 PM CDT Sun Apr 14 2019

   Areas affected...far northern Virginia...central Maryland...and far
   southeast Pennsylvania

   Concerning...Tornado Watch 67...

   Valid 142342Z - 150045Z

   The severe weather threat for Tornado Watch 67 continues.

   SUMMARY...The severe weather threat continues across tornado watch
   67.

   DISCUSSION...A few low-topped supercells continue to rotate in
   central Maryland. These storms will likely be responsible for the
   primary severe weather threat in tornado watch 67 for the next hour
   or two. Given the low-topped nature of the storms and very little
   lightning, the hail threat will continue to be minimal with a
   primary threat of damaging winds and an isolated tornado. It is
   uncertain how long this threat will continue, as most guidance
   suggests this activity will wane within the next hour or two.
   However, the environment ahead of these storms is not expected to
   change much within the next few hours and it seems possible that the
   threat from these initial storms may persist beyond 01Z.

   ..Bentley.. 04/14/2019

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

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

   LAT...LON   38977801 39557745 39997690 39847619 39507615 39047659
               38487746 38477791 38607808 38977801