mid-april; mid-atlantic; mid-atlantic ridge; mid-atlantic states; mid-august; mid-calf; mid-december; mid-eighties; mid-february; mid-fifties; mid-forties; mid-january; mid-july; mid-june; mid-march; mid-may; mid-nineties; mid-november; mid-october; mid-off; mid-on; mid-september; mid-seventies; mid-sixties; mid-thirties; mid-twenties; mid-water;