California – A calm-looking shoreline hides a growing threat this morning as long-period waves roll quietly toward the North Coast. The ocean may appear inviting, but conditions are shifting fast.
The National Weather Service in Eureka has issued a Beach Hazards Statement beginning this evening and lasting through late Thursday night. Forecasters warn of a moderate risk of sneaker waves, capable of sweeping people off rocks and beaches without warning. Wave energy increases through the day, with surf building and peaking tonight.
Along the Del Norte coast, Northern Humboldt, Southwestern Humboldt, and Mendocino County beaches, wave heights climb steadily. By Friday, large surf up to 17 feet is expected to persist, keeping hazardous conditions in place even after tonight’s alert window ends. These waves arrive quietly between sets, making the danger harder to spot.
Around Eureka and Humboldt Bay, today stays mostly sunny with patchy fog developing late. Highs reach the upper 60s inland, encouraging beach walks and coastal stops. That timing raises concern, as sneaker waves often strike during fair weather. To be fair, the ocean looks calm between surges, but that illusion can be deadly.
Officials urge beachgoers to stay far back from the waterline and avoid rocks, jetties, and steep beaches. Never turn your back on the ocean. Parents should keep children well away from the surf zone, especially during the evening hours.
Looking ahead, Friday remains mostly sunny, but the surf stays elevated. Rain chances return Saturday afternoon and increase into Sunday, shifting attention from surf hazards to slick roads and reduced visibility.
For now, enjoy the sunshine from a safe distance and respect the ocean’s power. Have you noticed larger waves already along your stretch of coast?
Five-Day Outlook for Eureka, California
• Today: Mostly sunny, high near 67
• Thursday: Sunny, high near 67
• Friday: Mostly sunny, high near 60
• Saturday: Mostly cloudy, slight rain chance late, high near 60
• Sunday: Rain likely, high near 57



