NOAA: ‘Nuisance flooding’ an increasing problem as coastal sea levels rise

 

NOAA: ‘Nuisance flooding’ an increasing problem as coastal sea levels rise

Study looks at more than 60 years of coastal water level and local elevation data changes

July 28, 2014

Eight of the top 10 U.S. cities that have seen an increase in so-called “nuisance flooding”–which causes such public inconveniences as frequent road closures, overwhelmed storm drains and compromised infrastructure–are on the East Coast, according to a new NOAA technical report. This nuisance flooding, caused by rising sea levels, has increased on all three U.S. coasts, between 300 and 925 percent since the 1960s.

The report, Sea Level Rise and Nuisance Flood Frequency Changes around the United States, also finds Annapolis and Baltimore, Maryland, lead the list with an increase in number of flood days of more than 920 percent since 1960. Port Isabel, Texas, along the Gulf coast, showed an increase of 547 percent, and nuisance flood days in San Francisco, California increased 364 percent….

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