Mesoscale Discussion 1605
   NWS Storm Prediction Center Norman OK
   1000 PM CDT Sat Jul 13 2024

   Areas affected...northeast IA...southwest WI...northwest IL

   Concerning...Severe Thunderstorm Watch 526...

   Valid 140300Z - 140400Z

   The severe weather threat for Severe Thunderstorm Watch 526
   continues.

   SUMMARY...Sporadic strong to localized severe gusts should remain
   possible through about Midnight-1 am CDT along the portion of the
   Mississippi River bordering Wisconsin, Iowa, and Illinois. An
   additional severe thunderstorm watch appears unlikely.

   DISCUSSION...While the leading MCS in WI clearly weakened, the
   trailing cluster appeared to have weakened for a time across
   northeast IA before a recent uptick in reflectivity and cloud top
   cooling over Clayton County, IA and Grant County, WI. The airmass
   immediately to the south and southwest of this small cluster remains
   amply unstable. But the bulk of the convection appears likely to
   mostly overrun the remnant outflow boundary that is stalling in the
   wake of the lead MCS. This merger process could yield another uptick
   in convective intensity before broader weakening trends amid
   increasing MLCIN occur overnight.

   ..Grams.. 07/14/2024

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

   ATTN...WFO...LOT...MKX...DVN...ARX...

   LAT...LON   43249071 42888993 42528912 42098895 41808920 41799012
               41889057 42139105 42429148 42829169 42979108 43249071