Subj : MESO: Nws Weather Prediction Center College Park Md To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Tue Jun 24 2025 04:18:55 AWUS01 KWNH 240418 FFGMPD MOZ000-IAZ000-KSZ000-NEZ000-241000- Mesoscale Precipitation Discussion 0501 NWS Weather Prediction Center College Park MD 1217 AM EDT Tue Jun 24 2025 Areas affected...Central/Eastern KS...Northwest MO...Southern IA Concerning...Heavy rainfall...Flash flooding possible Valid 240417Z - 241000Z SUMMARY...Areas of heavy showers and thunderstorms will continue overnight across portions of central and eastern KS, northwest MO and southern IA. Some additional concerns for flash flooding will exist from slow-moving cells and high rainfall rates. DISCUSSION...The latest GOES-E IR satellite imagery shows a southwest to northeast axis of broken shower and thunderstorm activity extending from central KS northeastward through northwest MO and into southern IA. The activity is focused along and south of a well-defined frontal zone with a very moist and unstable airmass pooled up along it. PWs of 1.75 to 2 inches, with MLCAPE values of 1000 to 1500 J/kg are noted along it. A rather convergent southwest low-level jet of 30 to 40 kts is focused in proximity to the front, and this should coupled with at least weakly divergent flow aloft should maintain a regional threat of heavy showers and thunderstorms going through the overnight hours. There will be additional storms capable of producing rainfall rates of 1.5 to 2.5 inches/hour based on the very moist environment along the front, and locally slow cell-motions and potential areas for some cell-training may allow for some spotty additional rainfall amounts of 3 to 5 inches. The 00Z HREF guidance is rather aggressive with some of the rainfall potential over the next several hours, and may be locally a bit overdone, but the environment near and south of the front should remain conducive for additional areas of heavy showers and thunderstorms. Some additional concerns for flash flooding will be possible as a result, and especially if any of these heavier rains can impact the more sensitive urbanized areas. Orrison ....Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!= DZ3fjg!6lOlPDgyrx9pzE1UpcAhx8mWQInGxSn7TWM-dz_qLhqe7tK90GVcukyoo4LsZiRbE2Ki= 87xwrDFSIwJpPcrZU4ZkOUc$ for graphic product... ATTN...WFO...DDC...DMX...DVN...EAX...ICT...LSX...OAX...TOP... ATTN...RFC...KRF...MSR...TUA...NWC... LAT...LON 41699247 41249134 40229211 38769477 37969683=20 37819855 38669881 40039606 41249448=20 =3D =3D =3D To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .