Dangerous long-period waves are building again across the Pacific as a new storm system sends powerful swell energy toward the U.S. West Coast. Forecasters warn these waves can strike suddenly—even in calm weather—posing renewed risks for parts of California, Oregon, and Washington. Not tsunamis, but life-threatening “monster waves” driven by long wave periods. Using latest NOAA and NWS data, this breaks down what’s happening offshore, why wave period matters more than height, and what coastal communities should watch for.
1 MINUTE AGO: Monster Waves Return to U.S. West Coast — New Storm Raises Coastal Threat
