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Jan 22, 2024 · FEMA maintains and updates data through flood maps and risk assessments. Flood maps show how likely it is for an area to flood. Any place with a 1% chance or higher chance of experiencing a flood each year is considered to have a high risk. Those areas have at least a one-in-four chance of flooding during a 30-year mortgage.
- Map Service Center
The FEMA Flood Map Service Center (MSC) is the official...
- National Flood Hazard Layer
English. The National Flood Hazard Layer (NFHL) is a...
- Homeowners, Renters Or Business Owners
FEMA has spent decades investing in high-quality data to...
- Map Revisions (Lomr)
A LOMR is a letter from FEMA officially revising the current...
- Coastal Flood Risk
Flood maps show the Special Flood Hazard Area (SFHA)— the...
- Guidelines and Standards
These guidelines and standards define the implementation...
- Guidance & Reports
Find Resources Guidelines and Standards View Risk MAP...
- Map Amendments (Loma)
FEMA uses the most accurate flood hazard information...
- Know Your Risk
To protect against floods, it is important to know the risks...
- Process to Revise a Flood Map
Revision Methods Revision Options Check Your Request's...
- Map Service Center
MyHazards is a tool for the general public to discover hazards in their area (earthquake, flood, fire, and tsunami) and learn steps to reduce personal risk. Using the MyHazards tool, users may enter an address, city, zip code, or may select a location from a map. The map targets the location, and allows users to zoom and scroll to their desired ...
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What is the national flood hazard layer (nfhl)?
Risk Assessment and Mapping. The massive flood of January 1997 forced a breach on the east levee of the Feather River in Yuba County. DWR/ January 4, 1997. The Department of Water Resources (DWR) collaborated with the California Ocean Science Trust (OST) and the Scripps Institution of Oceanography (SIO) to equip local communities with tools and ...
SB 5 requires that these maps contain the best available information on flood hazards and be provided to cities and counties in the SAC-SJ Valley watershed. This effort was completed by DWR in 2008. DWR has expanded the BAM to cover all counties in the State and to include 500-year floodplains.
Jan 31, 2024 · The First Street Foundation flood risk map differs from the widely used special flood hazard area maps by the Federal Emergency Management Agency — sometimes by a lot, depending on the region.
FEMA's National Flood Hazard Layer Viewer is a web application that allows you to explore the current effective flood hazard data for any location in the United States. You can zoom in and out, search by address, and view the NFHL data on different basemaps. You can also access additional information about the NFHL data and the National Flood Insurance Program.