El Niño event

In meteorology, an El Niño event refers to the warm phase of the El Niño–Southern Oscillation when a band of warm ocean water develops in the central and east-central equatorial Pacific and pushes toward the west coasts of North and South America. The warmer waters affect the Pacific jet stream, leading to above average dry and warm weather in the northern U.S. and Canada and flooding in the Gulf and southeastern states.