By: Stephen McCoy
Much of the same for this update to the forecast for the Acura Sports Car Challenge at Mid-Ohio. Some lingering moisture behind the surface low pressure system could bring a chance of scattered showers to the region through Saturday morning; the second low pressure system mentioned in the previous forecasts is expected to remain much further south than initially suggested. As the system moves eastward, winds will shift to the north to northwest, bringing cooler air to the region. As for the rest of the atmosphere, winds will be out of the west to southwest largely due to the upper level trough and will continue to transport moisture at their respective levels to central Ohio; this will result in mostly cloudy to overcast conditions through the day. On Sunday, winds in most levels of the atmosphere will return to zonal flow, that is west-to-east winds, which will move drier air to the region and cause mostly clear to partly cloudy conditions. Winds continuing from the north to northwest will keep temperatures relatively cool, although increased sunshine will allow for daytime heating to occur. Fog may be possible in the morning as a temperature inversion could set up over the region, with air at or near saturation at the surface.
Doug Schneider, Scott Martin, and Stephen McCoy are race fans and meteorologists dedicated to providing accurate forecasts and timely weather updates at racing venues around the world. We forecast for IndyCar, Indy Lights, Pro Mazda, USF2000, IMSA, Blancpain World Challenge America, and World Endurance Championship, as well as major SCCA and NASA events.