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Coastal Change Hazards Team Forecasted Hurricane Isaias Beach Impacts

As Hurricane Isaias approached the U.S. east coast, the USGS Coastal Change Hazards team produced a series of forecasts for impacts on the beach. Forecasts were updated daily based on wave and storm surge forecasts from NOAA.

Graphic map of the east coast of the U.S, with red and white strips along it, showing likelihood of effects of Hurricane Isaias
The USGS Coastal Change Hazards team produced a series of forecasts for Hurricane Isaias. (Public domain.)

Prior to landfall on August 3, 2020, the Coastal Change Hazards Team forecast that 64 percent of South Carolina beaches were very likely to erode at the base of the dunes. In addition, 13 percent of dunes were forecast to be very likely to be overwashed by storm waves. None of the dunes were forecast to be inundated. In addition to informing the public, forecasts were used to determine placement of sensors for USGS real-time response to Hurricane Isaias.

The USGS Coastal Change Forecast model is used to estimate the impacts of elevated waves and storm surge along the coast due to extreme storms. This model has been in use since 2011 and is continually improved.

For more information visit:

News Release: Isaias Likely to Cause Extensive Erosion on S. Carolina Beaches

Coastal Change Hazards Portal

To read about coastal change see the geonarrative, "Real-time Forecasts of Coastal Change." 


Read what else is new at the St. Petersburg Coastal and Marine Science Center.


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