ATLANTIC CITY, N.J.—The federal government is warning Americans to brace for a “floodier” future.
Government scientists predict 40 places in the U.S. will experience higher than normal rates of so-called sunny day flooding this year because of rising sea levels and an abnormal El Nino weather system.
(With correct link) Just in: U.S. ties record for number of #HighTide #flooding days in 2018 — with more to come in 2019 thanks to El Nino & sea-level rise. https://t.co/oNKygIt76Q @noaaocean pic.twitter.com/z1AhAYOLQ2
— NOAA (@NOAA) July 10, 2019
A report released July 10 by the National Oceanic and Atmospheric Administration predicts that sunny day flooding, also known as tidal flooding, will continue to increase.
“The future is already here, a floodier future,” said William Sweet, a NOAA oceanographer and lead author of the study.
The report predicted that annual flood records will be broken again next year and for years and decades to come from sea-level rise.
“Flooding that decades ago usually happened only during a powerful or localized storm can now happen when a steady breeze or a change in coastal current overlaps with a high tide,” it read.
The nationwide average frequency of sunny day flooding in 2018 was five days a year, tying a record set in 2015.
A lot of New Orleans was underwater this morning (and a lot of it still is). Some people broke out kayaks, others were forced to abandon cars in another episode of flooding.
How things happened this morning: https://t.co/alFEYwA81z
See full thread of updates below this tweet ⤵️ pic.twitter.com/3bcZkKlLuh
— NOLA.com (@NOLAnews) July 10, 2019
But the East Coast averaged twice as much flooding.
The agency says the level of sunny day flooding in the U.S. has doubled since 2000.
Nationwide, the agency predicted, average sunny day flooding could reach 7 to 15 days a year by 2030, and 25 to 75 days a year by 2050.
Here is what I-66 Eastbound looks like right now. pic.twitter.com/9tpqwYygVF
— Washington Examiner (@dcexaminer) July 8, 2019
The study noted floods interfering with traffic in northeast states, swamping septic systems in Florida and choking Delaware and Maryland coastal farms with saltwater over the past year.
Baltimore experienced 12 days of high-tide flooding from 1902 to 1936. Within the last 12 months, it experienced an additional 12 days.
The report cited the disruption of commerce in downtown Annapolis, Maryland, where parking spaces are lost to flooding. A 2017 study put the price tag on lost economic activity at as much as $172,000. The water table has risen to ground level and degraded septic systems in the Miami region, and farmlands in the Delmarva Peninsula in Delaware and Maryland have been damaged by salt water encroaching into planted areas.
High-tide flooding is causing problems including beach erosion, overwhelmed sewer and drinking water systems, closed roadways, disrupted harbor operations, degraded infrastructure and reduced property values—problems which “are nearly certain to get much worse this century,” the report read.
The report’s statistics cover May 2018 through April 2019.
The agency forecasts sunny-day flooding this year in Boston at 12 to 19 days (it had 19 last year). It predicted sunny-day flooding this year in New York (8 to 13 days, compared with 12 last year); Norfolk, Virginia (10 to 15 days; compared to 10 days last year); Charleston, South Carolina (4 to 7 days, compared to 5 last year); Pensacola, Florida (2 to 5 days compared with 4 last year); Sabine Pass, Texas (6 to 13 days compared with 8 last year) and Eagle Point, Texas (29 to 40 days, compared to 27 last year).
West coast predictions included San Diego (5 to 9 days compared to 8 last year); Los Angeles (1 to 4 days compared to 5 last year); Humboldt Bay, California (6 to 12 days compared to 12 last year); Toke Point, Washington (9 to 21 days compared to 12 last year) and 2 to 6 days in Seattle, compared to 2 last year.
The report documented that 12 locations broke or ties their record of sunny day flooding last year, including 22 in Washington, D.C., 14 in Wilmington, North Carolina; and 12 each in Baltimore and Annapolis.
By Wayne Parry