The entire Northern California coastline is under beach hazard warnings. The National Weather Service warns that, for the next few days, the danger will be higher than normal. San Francisco’s Baker Beach is notorious for having exceptionally strong sneaker waves. The danger of those waves will be higher than normal, according to the NWS. Watch NBC Bay Area News free wherever you are Santa Cruz State Parks lifeguards said teams have been busy with water rescues for more than a week.