top of page

Study: Moon ‘wobble’ could worsen flooding in 2030s

A new study by NASA scientists suggests that coastal communities like Belvedere and Tiburon are about to get a lot wetter because of the moon. In a paper published in July in the journal Nature Climate Change, scientists from NASA’s Sea Level Change Science Team at the University of Hawaii predict that lunar influences along with sea-level rise will greatly increase the number of high-tide flooding days in most coastal communities.

According to a report from the National Oceanic and Atmospheric Administration, between May 2020 and April 2021, coastal communities saw twice as many high-tide flooding days as they did 20 years ago. The agency projected the number of high-tide flooding days in the Bay Area would increase from the current one to five days per year to 15-20 days annually by 2050. But that figure does not take into account the latest data on the effects of the lunar “wobble,” a naturally occurring shift in the lunar orbit that will bring higher high tides and lower low tides starting in the 2030s.

For the complete story, pick up this week's edition of The Ark on newsstands or SUBSCRIBE NOW for home delivery.



Recent stories

Support The Ark’s commitment to high-impact community journalism.

The Ark, twice named the nation's best small community weekly, is dedicated to delivering investigative, accountability journalism with a mission to increase civic engagement and participation by providing the knowledge that can help sculpt the community and change lives. Your support makes this possible.

In addition to subscribing to The Ark for weekly home delivery, please consider making a contribution to support independent local journalism. For more information, contact Publisher & Advertising Director Henriette Corn at or 415-435-1190.​

bottom of page