King Tides are coming to parts of flood-prone South Florida

Parts of South Florida will experience higher than normal seasonal tides, potentially causing coastal flooding periodically through December, according to officials in two counties.

Monroe County, which includes Everglades National Park and the Florida Keys, and neighboring Miami-Dade County will both be affected by the King Tides, a term used to describe exceptionally higher than normal tidal cycles that typically occur during a new moon or a full moon when the moon makes its closest pass to the Earth, according to CNN meteorologist Haley Brink.
During a King Tide, coastal flooding can occur even on nice weather days when there is no rain, Brink said, which is why King Tides can also be referred to assunny-day flooding” または “nuisance flooding.
    Officials in Miami-Dade County say more severe flooding may result if King Tides coincide with bad weather conditions such as heavy rains, strong winds or big waves. しかしながら, sea-level rise is causing these tides to happen more frequently, to last longer and extend further inland than in the past.
      South Florida is seeing the sea level rise between 2 に 4 mm per year, according to the National Oceanic and Atmospheric Association (海洋大気庁). While this might not sound like a lot it adds up over time, and the higher the sea level is the higher the tides will be and the more coastal flooding, Brink said.
        “に 2020, アメリカ. Southeast Atlantic and Gulf Coast regions saw an increase of over 400 に 1,100 パーセント, それぞれ, in high tide flooding days compared to the year 2000,according to NOAA. This means that the southeastern coast and Gulf Coast saw five to 12 times as many high tide flooding days than they saw just 20 数年前, according to Brink. So if one location only saw on average two high tide flooding days in 2000, they could now be experiencing 10 に 24 days of flooding.
        This high tide flooding can be even worse if a hurricane is bearing down on these coastlines, そして forecasters have warned that the 2021 hurricane season is expected to beabove-normal.
          Hurricanes typically bring two types of flooding: flooding from heavy rain and flooding from storm surge. With King Tides, the storm surge inundations can be made even worse when adding storm surge on top of an abnormally high tide.
          In Monroe County, King Tide flooding is expected during the following dates: 9月. 11-13, 9月. 17-20, 10月. 4-13, 10月. 21-23, 11月. 3-11, and Dec. 2-8, 当局者は言った.
          The county coordinated with the National Weather Service in Key West and expects thehighest king tides to occur Oct. 8-11, 11月. 5-9, and Dec. 4-6,” リリースによると.
            Officials in Miami-Dade said residents should expect the high water levels Sept. 9-11, 10月. 5-11, 10月. 20-21, 11月. 3-9, and Dec. 2-7.
            Officials encourage residentsto prepare for king tides, be aware of their surroundings, and avoid driving on flooded streets.

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