El Nino occurs in the Pacific Ocean.
El Nino causes more hurricanes in the Atlantic Ocean.
During La Nina, the Northwest is often cooler and wetter than normal.
La Nina causes less rain in the South.
Warm water arrived in the Pacific Ocean around Christmastime.
The amount of fish caught by fishermen in Peru is more than usual.
The amount of fish caught by fishermen in Peru is less than usual.
The warm water in the Pacific Ocean can affect weather around the world.
The water is cooler in the Pacific Ocean.