nassau county flood zone map

Documents include LOMAs found in the "Effective Products" and "LOMC" folders, as well as Revalidations (those LOMAs which are still considered to be effective after a map is revised). Image via Nassau County Office of Emergency Management & NYSEMO GIS. Nassau County 1950. Remember that Amelia is a barrier island. The National Flood Hazard Layer (NFHL) dataset represents the current effective flood data for the country, where maps have been modernized. Tropical Cyclones may provide a little leeway time, but other hazards can be immediately life-threatening. It is a compilation of effective Flood Insurance Rate Map (FIRM) databases and Letters of Map Change (LOMCs). NYS 2013. Family Emergency Plan. Note: The computer default is set with the most current (DFIRM) flood zone maps issued to Nassau County from FEMA, dated December 17, 2010. For help planning, read and heed our Citizen's Disaster Preparedness Guide. FEMA National Flood Hazard Layer Interactive Mapping. Evacuation Zones are not the same as FEMA Flood Zones. Select the Search by Map option; Once the base map is loaded, select "Map Layers" from the top of the page. If you haven't already, sign up now for the Alert Nassau Citizen Alerts so you and your family will know when you are in danger, regardless of the hazard! Once sustained winds reach 39 mph, bridges will be closed for safety, so evacuation of the island must already be complete. Then expand the "Environmental" section by clicking next to the + sign and check the Flood Zones Effective August 2, 2017 map layers. The EM Director, Executive Policy Group, and BOCC will time evacuation orders so that everyone has time to get away safely. Nassau County Property Appraiser Interactive Mapping

These data were combined with landscape features, population density, and road access to generate our public safety Evacuation Zones. Now you can order your own FEMA Flood Zone Determination. Normal Tide + Surge = Storm Tide (sometimes called Storm Surge)  It doesn't just come up gradually; it's large forceful waves, much higher than normal, that can easily wash away vehicles, homes, flora, and fauna. Fernandina Beach Flood Map (Effective Date: August 2, 2017), Nassau County Property Appraiser's Office, 2017 Water Beyond Borders - Regional Community Institute, Insurance Rates & Flood Reference Library. SFHAs are defined as the area that will be inundated by the flood event having a 1-% chance of being equaled or exceeded in any given year. Turn Around Do Not Drown. Zone AO: Areas subject to inundation by 1% annual chance shallow flooding (usually sheet flow on sloping terrain) where average depths are 1-3 feet. NYS 2004. Then expand the "Environmental" section by clicking next to the + sign and check the Flood Zones Effective August 2, 2017 map layers. Surge is the extra stormwater pushed onto land by tropical cyclone winds. LOMA point locations are approximate.

BFEs are shown within these zones.

Nassau County Maps. Check out our Fema Flood Map of Nassau County, NY. Relevant documents can be found for a particular community by choosing to "Search All Products", and finding the community by State and County. High winds and tornadoes associated with tropical cyclones are much more likely to damage mobile homes; electric power and certain medical services may be unavailable for days or weeks after impact. Zone VE: Areas subject to inundation by the 1% annual chance flood event with additional hazards due to storm induced velocity wave action. Do You Have Flood Insurance. Because detailed hydraulic analyses have not been performed, no Base Flood Elevations (BFEs) or flood depths are shown. TO VIEW OLD FIRM FLOOD MAPS: dated May 4, 1988, click on icon “Map Layers” and uncheck the box to the left of “Flood Zone- SFHAs are labeled as Zone A, AO, AH and VE Moderate flood hazard areas, labeled Zone X500 (shaded) are also shown on the FIRM, and are the areas between the limits of the base flood and the 0.2-%-annual-chance (or 500-year) flood. Average flood depths derived from detailed hydraulic analyses are shown within this zone. FEMA National Flood Hazard Layer Interactive Mapping FEMA Flood Insurance Rate Map information can also be found on the Nassau County Property Appraiser's Interactive Mapping site. BFEs derived from detailed hydraulic analyses are shown in this zone. Click the LOMA point for a link to the letter (use the arrows at the top of the popup window to bring up the LOMA info, if needed). NYS 2000. This LOMA database may include LOMAs that are no longer effective.

To view an interactive flood map, including the effective FEMA Flood Insurance Rate Map, please visit Nassau County Property Appraiser's Office. The 1-% annual chance flood is also referred to as the base flood or 100-year flood. The areas of minimal flood hazard, which are the areas outside the SFHA and higher than the elevation of the 0.2-%-annual-chance flood, are labeled Zone C or Zone X (unshaded). Create an Account - Increase your productivity, customize your experience, and engage in information you care about. For more information, visit FEMA's Map Service Center (MSC).

In order to better assist you with this request, please fill out the. The map above depicts our different zones by color. FEMA Flood Map Specialist or CFM; Current FEMA Flood Map guaranteed; Pending & Preliminary FIRM search; Visual Flood Zone Report included . Once the base map is loaded, select "Map Layers" from the top of the page. Although a tropical cyclone is the most likely reason for an evacuation of coastal counties in Florida, a release of Hazardous Materials or an approaching Wildfire might also trigger an evacuation. Zone A: Areas subject to inundation by the 1% annual chance flood event. Plan what you will take and know how long it will take you to get there. New York State Maps. Nassau County Floodplain Ordinance 2015-16. Thousands of computer simulations depicting Sea, Lake, and Overland Surge from Hurricanes (SLOSH Models) were analyzed to determine the areas of Nassau County most likely to be inundated during a tropical cyclone. Evacuation Zones take into consideration the likelihood for impact from storms, water accumulation, ocean surge, river basins, and public safety access (we don't want anyone driving through water that covers a road). Evacuation Zones are not the same as FEMA Flood Zones. Zone AE: Areas subject to inundation by the 1% annual chance flood event determined by detailed methods. Additional Resources for Sports on Long Island Property Protection. Flood Facts and Safety Kit Items. Full GIS functionality is available to zoom in/out and search, providing a parcel level view for the user. Base Flood Elevations (BFE) are derived from from detailed hydraulic analysis. - Increase your productivity, customize your experience, and engage in information you care about. Mandatory purchase requirements and floodplain management standards apply. Finding Your Flood Zone To obtain a flood zone determination letter, please contact the Building Department at 904-310-3146. The NFHL is updated as studies go effective. To see exactly where your address appears with the Evacuation Zones overlay on the Property Appraiser's detailed Nassau County Map, go to the maps website, click on "Map Layers" at the top of the page, check the Public Safety box and the Evacuation Zones box in the menu that pops up, then use the "Search By" feature to select "Address" and enter your street address.

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