La Nina expected to return soon


La Nina, the cooler sibling of El Nino, is likely to form over the next few months, federal government forecasters said this week.

Specifically, there's a 55 to 65 percent chance that a La Nina will develop during the fall and winter, the Climate Prediction Center said.

The La Nina climate pattern - a natural cycle marked by cooler-than-average ocean water in the Pacific Ocean - is one of the main drivers of weather in the U.S. and around the world, especially during the late fall, winter and early spring.

Typical impacts of a La Nina winter across North America.

A typical La Nina winter in the U.S. brings cold and snow to the Northwest and unusually dry conditions to most of the southern tier of the U.S., according to the prediction center.,

The Southeast and Mid-Atlantic also tend to see warmer-than-average temperatures.

However, the Upper Midwest into New York and New England tends to see colder-than-average temperatures, the Weather Channel said.

The entire natural climate cycle is officially known as the El Nino.