El Niño's effects are expected to vary across regions. The Northwest, northern Plains, and Upper Midwest may experience hotter, drier conditions, exacerbating drought and wildfire risks. Conversely, the Southeast and Gulf Coast could see increased rainfall, alleviating drought conditions. California may face a wetter year, with potential for atmospheric rivers and heavier snowfall in the mountains. Hawaii could see a mix of summer rainfall followed by drier conditions, increasing wildfire risks. Globally, El Niño may intensify extreme weather events, including heat waves and heavy rainfall, while also reducing Atlantic hurricane activity. Vulnerable communities worldwide are urged to prepare for potential disruptions.