City of Nassau Bay

Harris County

Federal Emergency Management Assistance (FEMA)

National Oceanic and Atmospheric Administration (NOAA)

United States Geological Survey (USGS)

  • USGS Flood Information: Maps and resources for current and historical floods
  • Flood Inundation Mapper: Shows where flooding might occur over a range of water levels. Only available for a few areas.
  • Flood Event Viewer: Data such as rapid-deployment gages, temporary sensors, and high-water marks collected during large, short-term flood events like hurricanes and multi-state storms.
  • Coastal Change Hazards Portal: Extreme storms, shoreline change, and sea-level rise.