Does SP4 flood?

SP4 0AB up to High SP4 0AD up to High SP4 0BZ up to High SP4 0DW up to High SP4 0EG up to High SP4 0ET up to High SP4 0HA up to High SP4 0HF up to High SP4 6DQ up to High SP4 6ER up to High SP4 6ET up to High SP4 6HR up to High SP4 6JJ up to High SP4 6JQ up to High SP4 6NU up to High SP4 7AP up to High SP4 7BL up to High SP4 7EX up to High SP4 8HH up to High SP4 9DP up to High SP4 9DR up to High SP4 9QB up to High SP4 0AJ up to Medium SP4 0DA up to Medium SP4 0DL up to Medium SP4 0DN up to Medium SP4 0HS up to Medium SP4 6DJ up to Medium SP4 6DN up to Medium SP4 6HD up to Medium SP4 6PB up to Medium SP4 7BP up to Medium SP4 8JJ up to Medium SP4 9DZ up to Medium SP4 9PE up to Medium SP4 9PY up to Medium SP4 9RX up to Medium SP4 0AW up to Low SP4 0BN up to Low SP4 0BY up to Low SP4 0DB up to Low SP4 0HQ up to Low SP4 0LR up to Low SP4 0LW up to Low SP4 6AQ up to Low SP4 6DL up to Low SP4 6EU up to Low SP4 6HW up to Low SP4 6NQ up to Low SP4 6NT up to Low SP4 7BH up to Low SP4 8DW up to Low SP4 8HW up to Low SP4 8JT up to Low SP4 8LF up to Low SP4 9DB up to Low SP4 9DY up to Low SP4 9EA up to Low SP4 9RU up to Low