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What are some alternatives to FEMA flood maps that are arguably more accurate and reliable?

The First Street Foundation's flood maps use a 95th percentile confidence level, compared to FEMA's 50th percentile, making them more accurate in predicting flood risks.

FEMA's flood maps only account for 30% of flood events, leaving 70% of flood risks unaccounted for.

The Federal Emergency Management Agency (FEMA) has undercounted nearly 8 million homes and businesses that face substantial risk of flooding, placing more Americans in jeopardy from coastal storms, rising rivers, and flash flooding.

FEMA's flood maps are outdated and don't reflect the impact of climate change, which is making more homes vulnerable to flooding.

The National Oceanic and Atmospheric Administration (NOAA) provides more accurate flood maps than FEMA, using data from tidal gauges and coastal lidar surveys.

The National Flood Insurance Program (NFIP) uses flood maps to determine if a homeowner is required to purchase flood insurance, but these maps only show the 100-year floodplain.

Only one-third of streams and 46% of coasts have been mapped by FEMA, leaving a significant amount of flood risk unknown.

When data for an area isn't updated at the five-year mark, the flood risk is considered "unknown" by FEMA.

The Federal Emergency Management Agency (FEMA) maintains and updates data through flood maps and risk assessments, but these maps are often inaccurate.

The First Street Foundation's flood maps use machine learning algorithms to predict flood risks, making them more accurate than FEMA's maps.

The University of Colorado's flood maps use a combination of satellite imagery and machine learning to predict flood risks, providing more accurate information than FEMA's maps.

The National Flood Hazard Layer (NFHL) provides more accurate flood maps than FEMA, using data from the US Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA).

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