High tides strike Atlantic coasts this week


Coastal areas are reporting higher-than-usual tides caused by Sunday's supermoon. Along the east coast of the U.S., severe weather from Tropical Storm Joaquin could cause flooding.

Coastal areas are reporting higher-than-usual tides caused by Sunday’s supermoon. Along the east coast of the U.S., severe weather from a tropical storm could cause flooding.

Coastal areas in the eastern U.S. and elsewhere around the world are reporting exceptionally high tides. Meanwhile, according to the WeatherChannel a very wet and complex weather pattern is setting up in the U.S. East – caused by Tropical Storm Joaquin in the western Atlantic – that will potentially last into the weekend ahead, causing a flood threat, strong winds and possible coastal impacts. Read the WeatherChannel’s forecast for the U.S. East.

The higher-than-usual tides were expected, due to Sunday’s supermoon. Read more about the supermoon’s effect on the tides below.

The Miami Herald posted a video and photos showing what’s colloquially called a king tide – known as a perigean spring tide to scientists – that hit Miami Beach on Sunday and Monday (September 27 and 28, 2015). These higher-than-usual tides flooded parts of South Florida, the Herald said.

North Carolina beaches were stormy this past weekend, and flooding hit particularly hard at North Topsail Beach. Video here.

South Carolina’s high tides can be seen in the photos below.

Live5News has a report on flooding in Charleston, South Carolina.

Live5News has a report on flooding in Charleston, South Carolina.

Deik Haigler Photography wrote on Facebook on September 27:

Deik Haigler Photography wrote on Facebook on September 27: “We almost got stuck out the Marsh Boardwalk when this King High Tide came in over the boardwalk…”

And so on, up the U.S. East coast, and into Canada. The chart below is for Atlantic City, New Jersey.

In New Brunswick on Tuesday, at the Bay of Fundy – which boasts the highest tides in the world – Tuesday tides are expected to hit a peak that has not been reached in nearly two decades. Tides of 14.2 meters are expected there, according to CBCNews in New Brunswick. New Brunswick borders the U.S. in eastern Canada.

Vincent Robinet on Twitter is in Iqaluit (formerly called Frobisher Bay), the largest city and territorial capital of the Canadian territory of Nunavut, the northernmost, newest, largest and least populous territory of Canada. He posted the tweet below this morning.

Meanwhile, across the Atlantic, The Telegraph in the UK also reported that waves along the coast of Great Britain were expected to be higher than normal yesterday, and that flood warnings had been issued by the British Met office (for Swansea and Somerset). In addition, 25 flood alerts were issued across other UK coastal towns. Follow the UK’s flood warnings and alerts via @FloodAlerts on Twitter, licensed by the UK’s Environmental Agency.

High tide at Mersea Island, Essex, England this week. Photo by Stephen Huntley of The Telegraph.

High tide at Mersea Island, Essex, England this week. Photo by Stephen Huntley of The Telegraph.

How does a supermoon affect the tides? All full moons bring larger-than-usual tides, and supermoons – called perigean full moons by scientists- bring the highest (and lowest) tides of all. Each month, on the day of the full moon, the moon, Earth and sun are aligned, with Earth in between. This line up creates wide-ranging tides, known as spring tides. High spring tides climb up especially high, and on the same day low tides plunge especially low.

The extra-close full moon accentuates these monthly (full moon) spring tides all the more.

Storms have a large potential to accentuate high spring tides.

Bottom line: Reports of exceptionally high tides, called king tides in some places, early this week. Sunday’s supermoon was due to cause higher-than-usual tides. In the eastern U.S., severe weather from Tropical Storm Joaquin could combine with the higher tides to cause flooding.

Read more about Florida’s high tides this week from the Miami Herald

Read more about North Carolina’s flooding from WITN

Read more about the UK’s high tides from The Telegraph



from EarthSky http://ift.tt/1KICqPa
Coastal areas are reporting higher-than-usual tides caused by Sunday's supermoon. Along the east coast of the U.S., severe weather from Tropical Storm Joaquin could cause flooding.

Coastal areas are reporting higher-than-usual tides caused by Sunday’s supermoon. Along the east coast of the U.S., severe weather from a tropical storm could cause flooding.

Coastal areas in the eastern U.S. and elsewhere around the world are reporting exceptionally high tides. Meanwhile, according to the WeatherChannel a very wet and complex weather pattern is setting up in the U.S. East – caused by Tropical Storm Joaquin in the western Atlantic – that will potentially last into the weekend ahead, causing a flood threat, strong winds and possible coastal impacts. Read the WeatherChannel’s forecast for the U.S. East.

The higher-than-usual tides were expected, due to Sunday’s supermoon. Read more about the supermoon’s effect on the tides below.

The Miami Herald posted a video and photos showing what’s colloquially called a king tide – known as a perigean spring tide to scientists – that hit Miami Beach on Sunday and Monday (September 27 and 28, 2015). These higher-than-usual tides flooded parts of South Florida, the Herald said.

North Carolina beaches were stormy this past weekend, and flooding hit particularly hard at North Topsail Beach. Video here.

South Carolina’s high tides can be seen in the photos below.

Live5News has a report on flooding in Charleston, South Carolina.

Live5News has a report on flooding in Charleston, South Carolina.

Deik Haigler Photography wrote on Facebook on September 27:

Deik Haigler Photography wrote on Facebook on September 27: “We almost got stuck out the Marsh Boardwalk when this King High Tide came in over the boardwalk…”

And so on, up the U.S. East coast, and into Canada. The chart below is for Atlantic City, New Jersey.

In New Brunswick on Tuesday, at the Bay of Fundy – which boasts the highest tides in the world – Tuesday tides are expected to hit a peak that has not been reached in nearly two decades. Tides of 14.2 meters are expected there, according to CBCNews in New Brunswick. New Brunswick borders the U.S. in eastern Canada.

Vincent Robinet on Twitter is in Iqaluit (formerly called Frobisher Bay), the largest city and territorial capital of the Canadian territory of Nunavut, the northernmost, newest, largest and least populous territory of Canada. He posted the tweet below this morning.

Meanwhile, across the Atlantic, The Telegraph in the UK also reported that waves along the coast of Great Britain were expected to be higher than normal yesterday, and that flood warnings had been issued by the British Met office (for Swansea and Somerset). In addition, 25 flood alerts were issued across other UK coastal towns. Follow the UK’s flood warnings and alerts via @FloodAlerts on Twitter, licensed by the UK’s Environmental Agency.

High tide at Mersea Island, Essex, England this week. Photo by Stephen Huntley of The Telegraph.

High tide at Mersea Island, Essex, England this week. Photo by Stephen Huntley of The Telegraph.

How does a supermoon affect the tides? All full moons bring larger-than-usual tides, and supermoons – called perigean full moons by scientists- bring the highest (and lowest) tides of all. Each month, on the day of the full moon, the moon, Earth and sun are aligned, with Earth in between. This line up creates wide-ranging tides, known as spring tides. High spring tides climb up especially high, and on the same day low tides plunge especially low.

The extra-close full moon accentuates these monthly (full moon) spring tides all the more.

Storms have a large potential to accentuate high spring tides.

Bottom line: Reports of exceptionally high tides, called king tides in some places, early this week. Sunday’s supermoon was due to cause higher-than-usual tides. In the eastern U.S., severe weather from Tropical Storm Joaquin could combine with the higher tides to cause flooding.

Read more about Florida’s high tides this week from the Miami Herald

Read more about North Carolina’s flooding from WITN

Read more about the UK’s high tides from The Telegraph



from EarthSky http://ift.tt/1KICqPa

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