El Nino has formed in the Pacific and could set records, forecasters say

U.S. meteorologists say an El Nino has formed. That's the natural warming of parts of the Pacific that changes weather around the globe.

El Nino has formed in the Pacific and could set records, forecasters say
U.S. meteorologists say an El Nino has formed. That's the natural warming of parts of the Pacific that changes weather around the globe.