Homeland Security and Emergency Services

Hurricane Storm Surge Inundation Areas

Hurricane storm surge inundation areas are developed by the U.S. Army Corps of Engineers - New England District by identifying low-lying coastal areas that are below the National Oceanic and Atmospheric Administration's (NOAA) Sea Lake and Overland Surge from Hurricanes (SLOSH) model - "Maximum of Maximums" (MOM) - storm surge heights for Category 1 - 4 storms that landfall at high tide.

SLOSH surge height calculations are provided by the National Hurricane Center and are based on NOAA’s 2010 "NY3" SLOSH basin, which factors larger diameter storms than previously addressed by "NY2" basin analysis.  MOM values reflect numerous possible landfall locations, storm directions and forward speeds, presenting the highest surge value for any given location.