A frontal boundary will move across the area on Saturday, and with a modestly unstable airmass in place, convective showers and thunderstorms look to become likely during the afternoon hours, unfortunately during the time for the grand prix. With weak winds aloft, any storms will be slow moving and rainfall amounts may be heavy at times. Hopefully, the rain will not be heavy and lightning will not affect the on-track activities. There is a small chance of a shower during the morning hours, but I believe that it will remain dry at this point. * am temperature will be around 65 degrees and will warm up to around 81 for the afternoon high. Rain chances will increase from 30% in the morning to as high as 70% during the afternoon. Winds will be out of the southeast to start with, then shift out of the southwest at 5-10 mph.