![]() ![]() These issues most likely can be attributed to subsidence, newly established datums, and changes to the understanding of NAVD88 based on new versions of the GEOID. Important – Transformation uncertainties in the "Louisiana/Mississippi–Eastern Louisiana to Mississippi Sound" regional model have been found to range from 20 to 50 centimeters in particular locations from the Mississippi River Delta north to Lake Pontchartrain. San Francisco Bay - Remapped with updated VDatum tidal surface. Mississippi - Remapped with new elevation data. Oahu, Hawaii - Remapped with new elevation data. Virgin Islands - High tide flooding mapping added. Hawaii, Guam, Saipan, American Samoa, Puerto Rico, and the U.S. September 2018Īll locations - Source land cover data updated from 2006 to 2010.Īll locations - Sea level rise, mapping confidence, and marsh migration mapped to 10 feet. ![]() Washington – Eastern and southern Puget Sound counties remapped with new elevation data. Maryland – Northern and western Chesapeake Bay counties remapped with new elevation data. Pennsylvania – Remapped with new elevation data. March 2019Ĭonnecticut – Remapped with new elevation data. Maine – Remapped with new elevation data. New Hampshire – Remapped with new elevation data. Massachusetts – Remapped with new elevation data. Rhode Island – Remapped with new elevation data. Texas – Remapped with new elevation data. Louisiana – Remapped with new elevation data. South Carolina – Remapped with new elevation data. Washington – Eastern Puget Sound updated with new elevation data for Padilla Bay NERR and Skagit River Delta.įlorida – Remapped with updated VDatum tidal surface. High Tide Flooding Historical Yearly Inundation Events charts now updating dynamically and showing data through 2019. Users can now zoom in one more level under Sea Level Rise, Scenarios and High Tide Flooding.Īll locations – Photo simulations now have images for 7-10ft. New Jersey – Central and southern New Jersey remapped with new elevation data. Virgin Islands – Remapped with new elevation data. Puerto Rico – Remapped with new elevation data. New DEM available.įlorida – Panhandle remapped with new elevation data. New sea level rise scenarios from the 2022 Sea Level Rise Technical Report are available under the Local Scenarios tab.Īlabama – Remapped with new elevation data. Local Scenarios and Marsh Tutorials updated to include the 2022 Interagency Sea Level Rise Technical Report scenarios. Northern Mariana Islands – Saipan remapped and new data for Rota, Aguijan, and Tinian. New DEMs available.Ĭatalina Island, California – Previously unmapped. Georgia – Remapped with new elevation data. An area can experience a flood event multiple years in a row.Florida – Peninsula remapped with new elevation data. The 100 and 500-year flood terms are a reference to the probability of a flood and are based on historical data. Low-Risk Zones are higher than the elevation of the 0.2%-annual-chance flood. Moderate Risk Zones have a 0.2%-annual-chance(or 500-year) flood. High-Risk Zones have a 1% annual chance of a flood event called the base flood or 100-year flood. To find your evacuation zone, please use the evacuation zones viewer or view the evacuation zones map:įlood Zones are federally identified zones indicating a property's risk for flooding through the years. Note: All mobile and manufactured homes are considered Zone A regardless of where they are in the county. Evacuation ZonesĮvacuation zones are areas that may be ordered to evacuate during a hurricane and indicate areas that will be affected by storm surges.Ĭlay County evacuation zones are identified as A through E, North Prong, and South Prong of Black Creek.Īreas in white are not considered to be in an evacuation zone. Though often mistaken for each other, evacuation and flood zones are two different things. ![]()
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