High - greater than or equal to 1 in 30 (3.3%) chance of flooding in any year
Low – Less than 1 in 100 (1%) but greater than or equal to 1 in 1000 (0.1%) chance of flooding in any given year
Medium – Less than 1 in 30 (3.3%) but greater than or equal to 1 in 100 (1%) chance of flooding in any given year
Very low - Less than 1 in 1000 (0.1%) chance of flooding in any given year