Ongoing thunderstorms are mainly south of I-70 this morning. The thunderstorms have been moving over the same areas for awhile now, and here is a look at Doppler rainfall estimates:
I do have a rain-gauge varification from Springboro, where my Weatherchecker, Bonnie, reports 1.2″ at 7:30am… and it is still raining. There have been flood advisories issued for these areas this AM, for ponding water and low-lying spots that could see a bit more than ponding. We have an area of low pressure south of us, helping to kick this activity off early on. It will taper off in the late morning/early afternoon as the feature moves east of the area.
A weak front is draped in the region again today, and with upper level energy approaching during our peak-heating hours:
… this is the recipe for additional showers and thunderstorms later today. There is the potential for some of them to become strong or severe, with winds over 60mph and even some hail possible. The SPC has a good portion of the Miami Valley in an Elevated Risk for severe storms:
The best chance for this will be after 2pm this afternoon, as we reach the lower 80s for highs. The rain chance continues into the evening, so a few spotty thunderstorms may impact the Midwest All Star Game at Fifth-Third Field. The trend will be for these storms to shift south and taper off as we head into the later evening and overnight hours. High pressure moves in for Wednesday through Friday, bringing in less humid air and lots of sunshine.