January through March Outlook: Warm & Dry South, Cool & Wet Northwest
The Climate Prediction Center recently issued 90 day outlook covering January through March. It calls for warmer than average temperatures from the Northeast and Great Lakes through the South to the Four Corners. Colder than normal weather is expected for the Northwest.
Drier than average weather is expected across the southern tier of the nation. Odds favor above average precipitation in the Great Lakes, Ohio Valley and Northwest.
La Nina was the driving factor in the forecast for the upcoming month and the Climate Prediction Center expects conditions to last for several months. La Nina occurs when the waters of the Pacific Ocean show a general trend of cooling, the opposite of an El Nino. During La Nina periods, the Jet Stream is not usually active in the Southern U.S. This usually leads to less storms systems and below average precipitation. Cooler than normal weather typically occurs across the northern tier of the country and occasionally wetter periods as well.