Understanding El Niño
Eastern Colorado has seen wild weather this winter and spring that is commonly identified as the El Niño weather pattern. El Niño Southern Oscillation (ENSO) is an ocean-atmospheric phenomenon resulting in warmer water temperatures in the eastern Pacific Ocean off South America near Peru and Ecuador. This climate pattern typically occurs every three to seven years and may last a few months or a few years. Trade winds traditionally move warm water away from the coastline which allows the colder water to rise to the surface.