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Topic: Tides and currents

Sea level rise is turning nuisance flooding into a “sunny day” event — high-tide flooding that occurs even without a storm.

See our Spring 2021 high tide outlook

March 18, 2021

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tides and currents

Sea level rise is turning nuisance flooding into a “sunny day” event — high-tide flooding that occurs even without a storm.

Tidal flooding in Miami.

See our Fall 2020 high tide outlook

September 2, 2020

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tides and currents

Tidal flooding in Miami.

Downtown Annapolis, Maryland, pictured here in 2012, is one of three major East Coast urban areas already being faced with nuisance flooding in excess of 30 days per year.

Summer 2020 high tide outlook is now available

June 17, 2020

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tides and currents

Downtown Annapolis, Maryland, pictured here in 2012, is one of three major East Coast urban areas already being faced with nuisance flooding in excess of 30 days per year.

Two large red-colored sensors sit on the deck of a ship.The New York City skyline can be seen in the background. NOAA oceanographers deploy sensors like these in the water to measure the tidal currents for a period of time and then return to collect them. These two were recovered from the Hudson River, just off the coast of lower Manhattan.

NOAA safeguarding navigation in New York Harbor

February 5, 2020

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tides and currents

Two large red-colored sensors sit on the deck of a ship.The New York City skyline can be seen in the background. NOAA oceanographers deploy sensors like these in the water to measure the tidal currents for a period of time and then return to collect them. These two were recovered from the Hudson River, just off the coast of lower Manhattan.

Downtown Annapolis, Maryland, pictured here in 2012, is one of three major East Coast urban areas already being faced with nuisance flooding in excess of 30 days per year.

Spring 2020 high tide outlook is now available

March 3, 2019

Focus areas:

Topics:

tides and currents

Downtown Annapolis, Maryland, pictured here in 2012, is one of three major East Coast urban areas already being faced with nuisance flooding in excess of 30 days per year.

As the forecast track for Hurricane Dorian takes it towards Florida this weekend, it will coincide with higher than normal tides. Potential storm surge occurring on top of these larger high tides could result in coastal flooding.

View real-time water levels and winds for Hurricane #Dorian

August 29, 2019

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tides and currents

As the forecast track for Hurricane Dorian takes it towards Florida this weekend, it will coincide with higher than normal tides. Potential storm surge occurring on top of these larger high tides could result in coastal flooding.

A tidepool in Monterey Bay National Marine Sanctuary.

How many high tides are there per day?

July 3, 2018

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tides and currents

A tidepool in Monterey Bay National Marine Sanctuary.

Nuisance flooding along the Potomac River in Alexandria, Virginia, during a Spring 2016 "Supermoon."

NOAA experts to summarize 2017 U.S. high tide flooding

June 1, 2018

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tides and currents

Nuisance flooding along the Potomac River in Alexandria, Virginia, during a Spring 2016 "Supermoon."

The Gulf Stream.

Podcast: The motion of the ocean

April 27, 2018

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tides and currents

The Gulf Stream.

Flooding in Annapolis, Maryland.

Spring 2019 high tide outlook now available

March 6, 2019

Focus areas:

Topics:

tides and currents

Flooding in Annapolis, Maryland.

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