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Wednesday, December 7, 2022

1-3 foot waves expected following volcanic eruption

An undersea volcano erupted in spectacular fashion Saturday near the Pacific nation of Tonga, sending tsunami waves crashing across the shore and people rushing to higher ground. Tsunami advisories were issued for California, Hawaii and Alaska.The initial arrival time was expected around 7:35 a.m. Saturday, with peak waves possibly occurring one to two hours later. Officials expect the peak waves to be between one and three feet tall. According to the National Weather Service, the arriving tsunami will come in pulses of surging water levels onto and off of the coast, similar to “high tide”. People are asked to avoid the beach, harbors and the ocean. Do not expect to identify these arriving pulses by large cresting waves. These water level surges can overwhelm and overtake people and pull them out to sea.Closures Beaches and harbors across the Central Coast were closed on Saturday. Monterey: All beaches closedPacific Grove: All beaches and ocean turnouts closedSanta Cruz: The harbor was closed and a multi-jurisdictional operation is managing conditions. City’s beaches were closed until 2 p.m. Tours of Ano Nuevo State Park were closed until 11 a.m.Campers at Seacliff State Beach were evacuated by state park employees, Saturday morning. Video: Santa Cruz harbor water surge due to tsunami The National Weather Service in our area continues to monitor this evolving situation and will provide more information as soon as it becomes available. Video: Satellite imagery shows the moment an undersea volcano erupted near Tonga-The Associated Press contributed to this report.

An undersea volcano erupted in spectacular fashion Saturday near the Pacific nation of Tonga, sending tsunami waves crashing across the shore and people rushing to higher ground. Tsunami advisories were issued for California, Hawaii and Alaska.

The initial arrival time was expected around 7:35 a.m. Saturday, with peak waves possibly occurring one to two hours later. Officials expect the peak waves to be between one and three feet tall.

According to the National Weather Service, the arriving tsunami will come in pulses of surging water levels onto and off of the coast, similar to “high tide”. People are asked to avoid the beach, harbors and the ocean. Do not expect to identify these arriving pulses by large cresting waves. These water level surges can overwhelm and overtake people and pull them out to sea.

Closures

Beaches and harbors across the Central Coast were closed on Saturday.

  • Monterey: All beaches closed
  • Pacific Grove: All beaches and ocean turnouts closed
  • Santa Cruz: The harbor was closed and a multi-jurisdictional operation is managing conditions. City’s beaches were closed until 2 p.m.
  • Tours of Ano Nuevo State Park were closed until 11 a.m.
  • Campers at Seacliff State Beach were evacuated by state park employees, Saturday morning.

Video: Santa Cruz harbor water surge due to tsunami

The National Weather Service in our area continues to monitor this evolving situation and will provide more information as soon as it becomes available.

Video: Satellite imagery shows the moment an undersea volcano erupted near Tonga

The Associated Press contributed to this report.

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