High-tide flooding is happening across the United States at twice the rate it was just 30 years ago, a new report that
tracked flooding from May 2017 to April finds. Boston, the study shows, is one of the locations that saw record instances of high-tide flooding over the time period.
The National Oceanographic and Atmospheric Administration said Wednesday that high-tide flooding, sometimes called sunny-day or “nuisance flooding,” tied or set records in more than a quarter of the 98 places the agency monitors around the country.
The report found Sabine Pass in Texas had 23 days of high-tide flooding over the May-to-April time period, while Atlantic City in New Jersey and Boston had 22 each. Cities in other parts of the country experienced fewer tidal floods, but many of those cities still saw records set.
“Though year-to-year and regional variability exist, the underlying trend is quite clear: Due to sea level rise, the national average frequency of high-tide flooding is double what it was 30 years ago,” the report said.
Ben Horton, a Rutgers University researcher who was not involved in the study, called it “a warning, a shot across the