Representational image. AP Photo BIRMINGHAM: Hundreds of schools, Covid-19 vaccination clinics, businesses and more shut down across the Deep South on Wednesday as forecasters warned of waves of severe weather including massive tornadoes, downpours and hail the size of tennis balls. While nearly 16 million people in the Southeast could see powerful storms, the Storm Prediction Center said, a region of about 3 million stretching from southeastern Arkansas and northeastern Louisiana across Mississippi into Alabama was at high risk for big twisters that stay on the ground for miles, straight w...