Description: This layer represents the Limit of Moderate Wave Action (LiMWA). A LiMWA is a line on coastal flood maps (FIRMs) that indicates the inland extent of the area expected to experience 1.5-foot or greater breaking waves during a 1-percent-annual-chance flood event. This LiMWA highlights areas within the Coastal A Zone where wave action can cause structural damage.Last Updated: 5/14/2025