Flooding at Oyster Point Marina during a king tide event in 2015. (Courtesy Sabrina Brennan)

‘Extreme’ king tides expected through Friday

The National Weather Service has released a coastal hazard advisory for the week of Dec. 12, in anticipation of “extreme” king tides.

Places that are not normally reached by the Pacific Ocean’s tides may get wet this week. A rainy weather forecast combined with the sun, moon and earth being in proper alignment means that tides will be up to seven feet higher than normal. Coastal flooding is expected, particularly along low-lying areas.

The coastal hazard advisory takes place along coastal waterways from Big Sur to Point Reyes. The highest tides are expected to take place mid-to late-morning on Dec. 13, 14 and 15.

In contrast, extremely low tides will take place in the late afternoon and evening hours.

People should be aware of the possibility of flooded roadways and sidewalks, and of not becoming stuck on narrow beaches when tides rise. The National Weather Service also advises people not to park cars in low lying coastal areas this week.

A number of events will be taking place around the Bay Area for those interested in tidal changes.

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