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Photo: Getty Images

Ever noticed the Moon's wobble? If so, what you're seeing is its tilt, velocity and shape of its orbit. The full cycle takes 18.6 years.

  • Half that time, the Moon is suppressing tides, thank goodness. But the other half, it's making them higher.

State of play: The Moon is currently in the "tide-amplifying part of its cycle," according to NASA.

  • But by the mid-2030s, when this intensified series returns and sea levels are higher due to warming, people living in coastal cities may be dealing with severe floods "every day or two."

Why it matters: That's us. And that's only about a decade away.

  • Planners need to start considering this new information now. A business can’t keep operating with its parking lot underwater. Routinely flooded roads will cause traffic delays and job losses. And stagnant cesspools could become public health issues.

By the numbers: The National Oceanic and Atmospheric Administration reported a total of more than 600 "nuisance" or "sunny day" floods in 2019.

  • Starting in the mid-2030s, however, the lunar cycle will prompt "dramatic increases in flood numbers," according to the first study of this kind.

The bottom line: "The dangerous cocktail is predicted to spark increased high-tide flooding over a short period of time, creating extreme months of activity," reports Katie Camero for McClatchy.

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Go deeper

NASA: Moon "wobble" will cause dramatic increases in coastal flooding

Photo: Gary Hershorn/Getty Images

A "wobble" in the moon's orbit will combine with rising sea levels due to the Earth's warming to bring "a decade of dramatic increases" in high-tide coastal floods across the U.S. in the 2030s, NASA warns in a new study.

Why it matters: Low-lying areas near sea level already increasingly at risk from flooding will see their situation "only get worse," per a statement from NASA administrator Bill Nelson.

At least 3 dead after Amtrak train derails in Montana

Photo: Jacob Cordeiro/Twitter

An Amtrak train derailed near Joplin, Montana, resulting in at least three deaths and multiple injuries to passengers and crew on Saturday, per authorities and a company statement.

The big picture: 141 passengers and 16 crew members were estimated to be on the Empire Builder train, traveling from Chicago to Seattle and Portland, when eight of the 10 cars derailed about 4p.m., Amtrak said early Sunday.

Updated 5 hours ago - Politics & Policy

Federal judge blocks vaccine mandate for NYC teachers

Students are dismissed from the first day of school at PS 133 in Brooklyn on Sept. 13. Photo: Michael Nagle/Xinhua via Getty Images

A federal appeals court is set to hear a challenge Wednesday to a vaccine mandate planned for New York City school employees.

Why it matters The vaccine mandate was set to begin on Monday, prompting concerns over staffing shortages in schools across the nation's largest school system. But a judge on Friday temporarily blocked the measure, per AP.