By Eric Simons, Bay Nature
The National Weather Service’s Climate Prediction Center creates all kinds of forecasts for the United States. Familiar and unfamiliar variables, short-term and long-term time scales, pretty much anything you might wonder about and lots of things you probably don’t, the Prediction Center has an outlook for it: drought, rain, monsoon, El Niño and La Niña, Madden-Julian Oscillation, storm tracks and, of course, temperature.
The temperature outlooks for the United States are based on estimating the probabilities of three-month mean temperatures being above or below a 30-year average. The output is a series of groovy, swirly maps that look like this one, for December-January-February 2016:
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