![]() Northern South Carolina, North Carolina, Virginia, Maryland, Delaware, New Jersey, and New York – Remapped with new elevation data based on Post-Sandy lidar from USGS and NOAA National Geodetic Survey. The VDatum team is currently looking at resolving these uncertainties. 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. Distributed by Tribune Content Agency, LLC.Florida – Peninsula remapped with new elevation data. “A lot of people say oh, it hasn’t flooded here for me in 40 years, it’s never going to happen, but flooding is the most common natural disaster in our country,” Deweese said. He said it’s important for property owners to plan ahead, even if they feel a bit invincible. 24 will show where flood zones, elevations and boundaries are, the overhaul in October will change how the federal program rates homes based on that data. Robert DeWeese, a flood insurance specialist with National Flood Experts Insurance in Tampa, said both changes this year could affect homeowners. ![]() This would give homeowners a more precise picture of how their homes could be affected by flooding, but it may also result in significant increases in premiums. ![]() The new program will rate homes on their individual risk instead of just lumping them in with their surroundings. The updated maps will also take effect ahead of FEMA’s release in October of its “Risk Rating 2.0” plan, which will rate homes’ flood risk more precisely than current models. So as the map changes over time, some property owners may be required to buy flood insurance when they have not needed it in the past. Federally regulated or insured mortgage lenders require flood insurance on buildings in areas with high risk of flooding.
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