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USGS Produced Coastal Change Forecasts for Hurricane Hanna

Hurricane Hanna caused high waves and storm surge along the beaches of South Texas and made landfall at Padre Island, Texas at approximately 5pm CDT on July 25, 2020.

A graphic map of the coast of Texas with red and white strips along it, showing likelihood of effects of Hurricane Hanna
Prior to landfall, the USGS made forecasts for Hurricane Hanna.  (Public domain.)

Prior to landfall, the USGS forecasted that 47 percent of the coast from Galveston to the Texas-Mexico border was very likely to experience beach and dune erosion. In addition, 2 percent of dunes were forecast to be very likely to be overwashed by storm waves. None of the dunes were forecast to be inundated.

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.

To see the forecast for Hurricane Hanna, visit:

https://marine.usgs.gov/coastalchangehazardsportal/ui/alias/hanna2020

For more information about coastal change see the geonarrative, "Real-time Forecasts of Coastal Change." 

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