Historical Floods · Appomattox Basin · Chemung Basin · Delaware Basin · James Basin · Juniata Basin · Lehigh Basin · Passaic Basin · Potomac Basin.

The database currently contains data from January 1950 to August 2024, as entered by NOAA's National Weather Service (NWS). Due to changes in the data ... Bulk Data Download (CSV) · Storm Data FAQ · Details · Help and examples

This digital database contains flood hazard mapping data from FEMA's National Flood Insurance Program (NFIP)—the current effective flood risk data for parts ...

These data illustrate potential flooding associated with coastal flood advisories. The inundation layer depicts flooding above local flooding thresholds.

Historical River Observations Database. The archived data provided here have not been fully quality controlled and are considered preliminary data.

High Tide Flooding Historical Yearly Inundation Events charts now updating dynamically and showing data through 2019. Washington – Eastern Puget Sound updated ... Coastal Flood Exposure Mapper · Takeaways from the 2022 Sea...

A color-coded map indicating current river levels or flood stages for more than 6500 streamgages in U.S. states and territories.

Flood Inundation Mapping services are now available for 30% of the US population. Please visit https://www.weather.gov/owp/operations for more information. Flood Hazard Outlook · NOAA Atlas 14 · Data and Axtarish Services Catalog

The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods.

With over 1.7 million records over 70 years, the Storm Events Database is the most comprehensive, official record of severe weather in the US.