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'Whiteout' over Great Lakes

Credit: NASA/NOAA GOES Project, Dennis Chesters
The five Great Lakes, in all their glory, barely peek out from the veil of clouds and whooshing snowfall above them in a new satellite image captured…Read More »

Monday (Jan. 6) as the Arctic's polar vortex barreled southward.

NOAA's GOES-East satellite snapped this Midwest "whiteout" of sorts at 3:15 p.m. EST (2015 UTC), before sunset, providing side illumination to the clouds and lake-effect snow, which forms when cold air moves over warmer lake waters. That warm water evaporates and heats up the lowest layer of air; since warm air is less dense than cold air, it rises and begins to cool. The result? The water vapor condenses into clouds and falls as snow, sometimes as huge amounts of snow in these "lake-effect" bands.

[Full Story: 'Whiteout' Over Great Lakes Seen from Space (Photo)]   Less «
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