By: Stephen McCoy
Only minimal changes were made to the forecast in this update for the California 8 Hours, most notably a lower chance for precipitation on Thursday. A slight chance for scattered showers is still present, but confidence is waning. Of the major computer models that we use for our forecasts, the Euro now stands alone when expressing rain during the day. However, the iterations of the model over the past day have yielded the same result, albeit indicating rain occurring more towards mid-day, which is too significant of a result to fully ignore. Should the Euro be correct, scattered showers will move through the region around noon from the north/northwest, though the model estimates precipitation rates around 1/100th of an inch per hour which would provide more of a nuisance than a major impact for the sessions on Thursday. The Euro is also indicating precipitation near the same magnitude Thursday night into Friday, but this would have no impacts to Friday's sessions.
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.