Storm Prediction Center Mesoscale Discussion 1901

   Mesoscale Discussion 1901
   NWS Storm Prediction Center Norman OK
   0239 PM CDT Mon Aug 10 2026

   Areas affected...central and eastern Maryland into northern Virginia

   Concerning...Severe Thunderstorm Watch 555...

   Valid 101939Z - 102145Z

   The severe weather threat for Severe Thunderstorm Watch 555
   continues.

   SUMMARY...The threat for damaging wind gusts may increase through
   late afternoon as the ongoing storms encounter a more unstable air
   mass.

   DISCUSSION...Strong to potentially severe storms currently emerging
   from the Blue Ridge Mountains are moving into a hotter and more
   unstable air mass, characterized by MLCAPE of 2000-2500 J/kg and 0-3
   km lapse rates of around 8 C/km. Moreover, The KLWX VWP is sampling
   strengthening westerly winds above 3.5 km AGL, which may aid in
   storm organization. The extent of the damaging wind threat will be
   dependent on the degree of cold-pool organization that can occur.
   However, the more favorable parameter space with eastward extent
   suggests that threat should increase through late afternoon.

   ..Mead.. 08/10/2026

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

   ATTN...WFO...LWX...

   LAT...LON   38397926 39067824 39447771 39667692 39387634 38697674
               38047853 37867887 38037920 38397926 

   MOST PROBABLE PEAK WIND GUST...55-70 MPH