WASHINGTON — La Nina, the cool flip side to El Nino, has returned, forecasters said Thursday.
The National Oceanic and Atmospheric Administration said a weak La Nina has formed and is expected to stick around for several months. La Nina is a natural cooling of parts of the Pacific that alters weather patterns around the globe.
La Nina typically brings drier conditions to the U.S. South and wetter weather to the Pacific Northwest and western Canada. Indonesia, the Philippines, northeastern South America and South Africa often see more rain during December, January and February in La Nina years.
Last year’s La Nina was unusually brief, forming in November and gone by February. This one should hang around through at least March. While it may last a bit longer than last year’s La Nina, it should be just as weak, said Mike Halpert, deputy director of NOAA’s Climate Prediction Center.