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Storm Surge Risk Areas
L o a d i n g
Organization
The Federal Emergency Management Agency (FEMA) - view all
Update frequencyunknown
Last updated6 days ago
Overview

This data reflects areas with a risk of storm tide flooding from hurricanes, based on potential storm tide heights calculated by the National Weather Service's SLOSH (Sea, Lake, and Overland Surge from Hurricanes) Model. The SLOSH Basin used for mapping was Chesapeake Bay (CP5), released in 2014. This data was prepared by the U.S. Army Corps of Engineers, Baltimore District, Planning Division in January 2016. SLOSH storm tide elevations used for this mapping are based on the Maximum of Maximums (MOM) SLOSH output dataset. The MOM output elevations represent the highest calculated storm tide values based on thousands of SLOSH simulations using different combinations of approach direction, forward speed, landfall point, astronomical tide, and intensity (Category 1 through Category 4). Categories 1 through 4 refer to the Saffir-Simpson scale of hurricane intensity. This map does not reflect the expected storm tide flooding for every hurricane, or for any one particular type of hurricane. This map shows the overall footprint of the area that has some risk of storm tide flooding from hurricanes, based on the MOM output dataset.

DOEEFEMAdcdistrict of columbiaenvironmentfloodhurricanestorm surgewashington dc
Additional Information
KeyValue
Dcat Issued2015-02-27T20:55:54.000Z
Dcat Modified2024-09-26T14:19:02.000Z
Dcat Publisher NameU.S. Army Corps of Engineers
Guidhttps://www.arcgis.com/home/item.html?id=a081c2756d844eb398de6ea4bf936ced&sublayer=36
Harvest Object Idd6c91384-3acb-4663-83a2-f66ad151e842
Harvest Source Idc1a598fe-7ea3-4439-b59b-1cec8cd782a0
Harvest Source TitleFEMA Geospatial Resource Center Data Catalog
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Data Sensitivity Classunknown
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