HURREVAC has updated National Storm Surge Hazard Maps (SLOSH MOMs) published by the National Hurricane Center Storm Surge Unit in the fall of 2025.
The U.S. Gulf Coast and East Coast were reprocessed to improve spatial resolution and friction effects from land cover. Users can interact with the data in the Storm Surge (SLOSH) Explorer and download the GeoTIFF files from the Resources tab.
Learn more about this product on the NHC’s Storm Surge website.
Conditions tab enhancements
Users can now hold the pointer over the Forecast Rain and Observed Rain layers to display a label over the map for a given color range.

The River Gages can now be filtered to exclude sites that are not flooding. Use the Hide No Flooding Gages checkbox to filter out all green points. This option can be used with either forecast or observed water levels.
