AWUS01 KWNH 090245 FFGMPD WIZ000-ILZ000-IAZ000-NEZ000-090700- Mesoscale Precipitation Discussion 0648 NWS Weather Prediction Center College Park MD 1044 PM EDT Wed Jul 08 2026 Areas affected...West-Central to Northeast IA Concerning...Heavy rainfall...Flash flooding possible Valid 090244Z - 090700Z SUMMARY...A localized threat for some flash flooding will persist for a few more hours across portions of west-central to northeast IA as a broken axis of heavy showers and thunderstorms continues across the region. DISCUSSION...The latest GOES-E IR satellite imagery still shows an axis of cold-topped convection associated with a broken MCS that is impacting portions of west-central to northeast IA this evening. The activity continues to drop down to the east-southeast as the convection encounters a moist and moderately unstable airmass still pooled out ahead of a quasi-stationary front. MLCAPE values are still locally on the order of 1500 to 2000 J/kg with PWs generally near 1.75 inches. This will still help facilitate heavy rainfall rates of 1 to 2 inches/hour for a few more hours. However, as boundary layer CINH increases with the loss of daytime heating, the convection should gradually begin to weaken while also become somewhat outflow dominant. The latest hires CAMs suggest locally an additional 2 to 4 inches of rain where some occasional cell-training takes place over the next few hours. This may locally exceed some of the 3-hour FFGs across the region, and as a result, some localized concerns for flash flooding will persist. This will include potential for some isolated urban flash flooding impacts. Gradually the threat for any flash flooding will subside later tonight as the shower and thunderstorm activity begins to weaken. Orrison ...Please see www.wpc.ncep.noaa.gov for graphic product... ATTN...WFO...ARX...DMX...DVN...FSD...OAX... ATTN...RFC...KRF...MSR...NWC... LAT...LON 42999189 42589048 41829040 41329139 40999369 40949488 41129590 41689639 42049622 42429539 42869388