El Niño is officially here, bringing domino weather effects across the planet (washingtonpost.com) El Niño is officially here, bringing domino weather effects across the planet By Matthew Cappucci; Ben Noll 2026061113330200 El Niño is here, according to the National Oceanic and Atmospheric Administration. The agency issued an El Niño Advisory on Thursday morning, signifying that Earth has crossed a key threshold into El Niño territory.