A large high pressure ridge will provide dry and cooler-than-normal conditions across Ohio for the middle part of this week. As that high moves east, a southerly flow of warmer and more humid air will spread into the region on Friday. I think that conditions will remain stable enough on Friday that there won't be any potential for showers and thunderstorms to develop, but that may change for the weekend. As moisture increases, instability will increase and bring a chance of some storms developing with afternoon heating. Right now, I think the chance is small, just 20%, and the chance of any impact on the racing is very low. That could change as we get closer to the weekend.