Think more Pacific hurricanes, a wetter and colder winter across the southern U.S. — and potentially the hottest year on record. Add Yahoo as a preferred source to see more of our stories on Google. People watch as El Niño-generated storm waves crash onto seaside houses at Mondos Beach, Calif., in 2016. (Mark Ralston/AFP via Getty Images) El Niño has formed in the Pacific Ocean and is expected to intensify in the coming months, meteorologists say.