"Sheet flooding area" means the area which may be subject to flooding with depths of one foot or less during the base flood even though a clearly defined channel does not exist and the path of the flooding is often unpredictable and indeterminate. Sheet flooding areas include:
A. FEMA designated Shaded Zone X when the designation refers to areas subject to a depth of flow of one-foot or less during the base flood; and
B. Areas that the chief engineer, using the best available data, has determined are subject to sheet flooding during the base flood.
(Ord. 2010-FC5 § 1 (part), 2010; Ord. 2005 FC-2 § 2 (part), 2005; Ord. 1999 FC-1 § 1 (part), 1999; Ord. 1988 FC-2 Art. 4 (part), 1988)