Experts predict El Nino will arrive this summer. El Nino is a weather pattern that sometimes happens in the Pacific Ocean and affects weather worldwide.
When the Sun warms the surface water near the equator, it forms more rain clouds. Strong winds push the warm water near South America toward Indonesia, while cooler water rises to the surface near South America.
But the winds blow the other way toward South America in the fall and winter. So the warm water moves to the coast of South America. Numerous rain clouds form over this part of the world during El Nino years. These clouds move towards the Americas. As such, these regions will experience heavy rain. However, other places may experience drought.
As El Nino approaches, we should be cautious about the upcoming changes.