6/27 – Rob’s “Wetter Weekend” Thursday Morning Forecast

An upper level high-pressure system extends across much of the country between the Rockies and the western Atlantic. A slight weakness in the system will begin to develop across the Southeastern U.S. today. Subsidence was quite strong yesterday and will likely keep convection from becoming numerous today…but rain potential will be slightly higher.

Gradual upper level weakness over the Northeastern U.S. Friday into the weekend will erode the high-pressure over the Gulf Coast and southeastern US even more while an easterly wave tracks across the northern Gulf of Mexico. This will reduce subsidence and allow daytime heating to produce numerous afternoon thunderstorms. Therefore, have kept daytime rain chances upwards of 50 to 60% Friday (50-70% this weekend) with storms likely lasting well into the evening hours. A side effect of increased rain chances and cloud cover over the weekend will be a slight drop in daytime highs. Expect them to be closer to the 90 degree mark. This pattern will spill over into early next week and possibly longer.

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