El Niño

Another warm winter forecast for swath of US

Much of the U.S. should expect another warm winter, but not quite as toasty as the last two years, forecasters said.

The National Oceanic and Atmospheric Administration on Thursday forecast a warmer winter from California through the Midwest to Maine. A colder than normal winter is predicted for southern Alaska, the Pacific Northwest and the Northern Tier states. Normal temperatures are forecast for a thin swath of states from Indiana to Idaho.

The big driver in the forecast is a La Nina weather event that is likely to develop next month. La Nina, the flip side of El Nino, is the periodic cooling of the central Pacific Ocean that affects weather patterns around the...

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