Storm Prediction Center Mesoscale Discussion 1921

   Mesoscale Discussion 1921
   NWS Storm Prediction Center Norman OK
   0459 AM CDT Sun Aug 10 2025

   Areas affected...portions of central IA

   Concerning...Severe Thunderstorm Watch 584...

   Valid 100959Z - 101130Z

   The severe weather threat for Severe Thunderstorm Watch 584
   continues.

   SUMMARY...Isolated strong to severe wind gusts remain possible
   across central Iowa.

   DISCUSSION...A cluster of storms will continue to track northeast
   across central Iowa this morning. Overall radar presentation has
   become somewhat disorganized, but a corridor of 60-70 kt velocity
   signatures aloft are still noted to the west of the Des Moines
   vicinity. Instability decreases gradually with northeast extent, and
   stronger effective shear magnitudes remain displaced to the north.
   While severe gusts are possible over the next couple of hours, the
   expectation is that a gradual weakening trend will continue as
   convection develops northeast.

   ..Leitman.. 08/10/2025

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

   ATTN...WFO...DVN...ARX...DMX...OAX...

   LAT...LON   42049209 41559278 41279360 41059453 41129495 41339497
               41979471 42619336 42839257 42659203 42049209 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN