An increased risk of dangerous sneaker waves and strong rip currents is forecast for the ocean beaches of the Bay Area early next week, the National Weather Service said Saturday.

The hazardous beach conditions are expected from 5 a.m. Monday through 8 p.m. Tuesday, forecasters said on social media.

“Waves can sweep across the shoreline without warning, pulling people into the sea from beaches, jetties and rocks,” the weather service said, in what are known as sneaker waves.

Forecasters cautioned the public to stay out of the water to avoid hazardous surf and never turn their backs on the ocean.