That would have been fine-- except that Obamanation will also be giving his farewell address to the Nation -- and Mother Nature might not be as proud of him as he is of hisself.
Thus, to ensure that all goes well, the good citizens of North Carolina have pooled their resources and agreed to installed a retractable roof over the stadium to ensure a safe, dry, and uninterrupted set of speeches.
Here is the architect's sketch of the final design!!
Kinda' makes you flush with pride, don't it!!