Al Roker is one very proud father and his fans were equally as congratulatory following the Today show star's update on his only son, Nick.The weatherman shared several videos and photos of his boy - who has special needs - and his wife, Deborah Roberts, taking part in running races for charity and it was clear that emotions were running high.MORE: Al Roker's wife looks amazing in flower-print bikini Al captioned the first post: "My boy, @nick.roker155 is taking part in the