Officials continued to issue warnings about dangerous surf conditions today amid a heat wave that has sent droves of Southland residents to the seaside in search of a cool breeze. The warnings come after Los Angeles County lifeguards announced that nearly 2,000 people were rescued from the ocean last weekend. WATCH HERE WATCH HEREA large south swell from Hurricane Genevieve was sending large waves ashore while causing potentially deadly rip currents for some area beaches, according to the National Weather Service. Other hazards include sneaker waves, beach erosion and debris in the water." Sneaker waves are large, powerful waves that seem to appear out of nowhere compared to the prevailing conditions.