By Scott Martin (@RaceWx4You)
A big dome of high pressure will be sitting over the area on Friday, allowing the sinking air to squash any chance for any thunderstorm development throughout the day. Skies will start off mostly cloudy, with the possibility of some patchy fog during the early morning hours. The good news is that the fog will be gone by the time the cars take to the track later in the morning. Clouds will dissipate somewhat throughout the day, ending up mostly clear by sunset. Afternoon highs will top out in the lower 80s (and I may have actually been too conservative with the high as the mid-80s are not out of the realm of possibility).
Unfortunately, the high pressure gets quickly pushed off of the coast and is replaced by a center of low pressure and an associated cold front. Skies will be mostly sunny for much of the day and temperatures will be warmer as warm air will be advected into the area from the south. By the time the afternoon arrives, there will be enough lift from the approaching front and instability from the daytime heating to fire off a few scattered showers and storms. Chances will be around 30% while cars are on the track, but those will increase after sunset as the front arrives in the area. Afternoon highs will be in the mid-80s and there will be very little wind to help cool you off. Be sure to stay hydrated, wear your hats and shades, and don't forget to sunscreen up.
Unfortunately, the high pressure gets quickly pushed off of the coast and is replaced by a center of low pressure and an associated cold front. Skies will be mostly sunny for much of the day and temperatures will be warmer as warm air will be advected into the area from the south. By the time the afternoon arrives, there will be enough lift from the approaching front and instability from the daytime heating to fire off a few scattered showers and storms. Chances will be around 30% while cars are on the track, but those will increase after sunset as the front arrives in the area. Afternoon highs will be in the mid-80s and there will be very little wind to help cool you off. Be sure to stay hydrated, wear your hats and shades, and don't forget to sunscreen up.
