![]() ![]() Like the Pacific low to its north, the subtropical low has stalled as well, lashing the Carolinas with squalls, and providing a superhighway into the South for the frigid air racing out of Canada.Īfter night falls, air-traffic controllers in Iowa and Missouri must shut down several airports for as long as two hours. To its west, a powerful burst of Arctic air, which has been bottled up in Canada for weeks by the horizontal jet stream, surges to the south, creating a sharp weather front that rings out the atmosphere like a rolling pin pushing across a saturated sponge.įorecasters predict record cold across much of the country. 10 - The Pacific low stalls over the eastern Great Lakes, spinning in place like a massive eddy left by a paddlewheeler. ![]() To the southeast, as was forecast, the subtropical low continues to gain strength and crawl north, paralleling Florida’s Atlantic coast. In its wake, the low leaves a trail of thick snow in Montana and Idaho as it sucks cold air out of Canada. ![]()
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