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Winter Weather in North America 2019-20

Southern California Snow
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Southern California Snow

A fast-moving storm dropped a heavy dose of winter—and even a tornado—on the region.

Published Dec 31, 2019

Image of the Day Severe Storms Snow and Ice

Cloud Streets Stream Over the Great Lakes
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Cloud Streets Stream Over the Great Lakes

A blast of cold air from Canada is fueling lake effect snow in several states.

Published Dec 10, 2019

Atmosphere Land Water Severe Storms Remote Sensing

A Cirrus Arc
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A Cirrus Arc

Circulation around a jet streak—a fast-moving pocket of air within the jet stream—formed this distinctive arc of clouds.

Published Dec 4, 2019

Image of the Day Atmosphere Severe Storms

Snow in Montana and Canada
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Snow in Montana and Canada

An unusually heavy snowfall across the northern Rockies brought winter weather barely a week into autumn.

Published Oct 1, 2019

Severe Storms Snow and Ice Remote Sensing