7/20 – Rob’s “Dangerous Heat” Forecast
The main focus continues to be impacts from an area of high-pressure moving closer to the area affecting temperature and rainfall. This feature will remain expanded across the entire southern half of the country throughout the week. Shower and thunderstorm coverage is expected to be fairly shunted as a result of high pressure subsidence. Rain chances for today similar to yesterday (20-30%)…late morning to early afternoon then cutting off as the afternoon progresses. Temperatures will once again be a few degrees above normal. Dewpoints starting in the mid 70s should fall mainly into the lower 70s with daytime mixing…which should keep heat indices just below the 108 heat advisory criteria today. Thursday and Friday will be very similar with relief coming latter weekend.