Storm Prediction Center Mesoscale Discussion 1624

   Mesoscale Discussion 1624
   NWS Storm Prediction Center Norman OK
   1052 PM CDT Sun Jul 14 2024

   Areas affected...parts of northern to central IL

   Concerning...Severe Thunderstorm Watch 534...

   Valid 150352Z - 150515Z

   The severe weather threat for Severe Thunderstorm Watch 534
   continues.

   SUMMARY...A renewed strong to severe wind threat may evolve
   southeast from a thunderstorm cluster over the Quad Cities into
   parts of central Illinois overnight. This threat may remain
   relatively isolated.

   DISCUSSION...While the primary MCV and bowing linear cluster has
   spread over the Chicagoland area, renewed deep convection
   intensified on the backside of the trailing outflow over the Quad
   Cities. The southern portion of this renewed development that can
   persist south of the earlier outflow will have the potential to
   further intensify and yield a swath of strong to severe wind gusts.
   This will be aided by the presence of moderate west-northwesterly
   low to mid-level flow as sampled by the DVN VWP, and a lobe of
   enhanced buoyancy extending east of the instability max over
   northern MO. While most of this threat should be contained within WW
   534 during the next couple hours, it may spread just south of the
   watch within a confined corridor overnight.

   ..Grams.. 07/15/2024

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

   ATTN...WFO...IND...LOT...ILX...DVN...

   LAT...LON   41729022 41548926 41408858 40878739 40408732 40208780
               40158868 40248921 40458995 41139043 41409059 41729022