This page contains information on El Niño, La Niña, and how these important patterns influence your weather here in Canada. Browse our video and news galleries and feel free to share this ...

A vast spot in the Pacific Ocean called the El Niño-Southern Oscillation effects weather the world over. This spot is famous for creating oscillating weather patterns known as El Niño and La Niña.

Meteorologists say a weak La Nina weather event has arrived but will bring fewer storms than usual. Here's how the Pacific El Nino and La Nina weather phases can influence extreme weather globally.