Whether it will be a “very strong” or even “super” El Niño remains to be seen, but the powerful Pacific Ocean pattern is expected to appear this summer.

Several models predict Pacific sea surface temperatures will rise more than 7.2 degrees Fahrenheit (4 degrees Celsius) above average by the fall, suggesting this El Niño could be…

The chaotic climate force is known for boosting hurricane activity some places and reducing it in others. Here's what to know.