Southern California is experiencing record-high ocean temperatures, leading to concerns about a potential marine heatwave. Data from the Scripps Institution of Oceanography indicate that daily high temperatures are significantly above historical averages. This heatwave, which began last fall, is attributed to a high-pressure atmospheric system, differentiating it from typical El Niño events. The situation is reminiscent of 'the Blob,' a previous marine heatwave that had devastating effects on marine life.