Showing posts with label winter. Show all posts
Showing posts with label winter. Show all posts

Thursday, February 20, 2014

Understanding the Polar Vortex

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Here's why most of the United States has been in the Deep Freeze this winter:

From the New York Post
“The Big Chill,” NASA’s Goddard Space Flight Center post read. “Blistering cold air from the Arctic plunged southward this winter, breaking US temperature records.”
“A persistent pattern of winds spins high above the Arctic in winter. The winds, known as the polar vortex, typically blow in a fairly tight circular formation. But in late December 2013 and early January 2014, the winds loosened and frigid Arctic air spilled farther south than usual, deep into the continental United States.”

NASA Video Explaining the Polar Vortex








Monday, January 6, 2014

Ice Cold Polar Vortex Takes Over America

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On the heels of a winter storm named "Hercules" that brought blizzard conditions to the Midwest and New England and caused 16 deaths, we now have a phenomenon called the "Winter Vortex" that could be even more dangerous. Over the next 24 hours the Arctic blast is going to make temperatures plummet to below double digits below zero over the northern states and into the south. Also blizzards are happening again, and several states are under states of emergency just due to ice and cold. Is this extreme weather connected to global warming? Probably, yes. Is there anything we can do about it except bundle up and shake a fist at the sky? No.



From Time Magazine:
Meteorologists attribute the “polar vortex” to freezing air from the North Pole being pushed down to as far as the Gulf Coast of the U.S., the Associated Press reports. In Atlanta, temperatures will be in the mid-20s by Tuesday while a wintry mix of rain and snow are expected in parts of Kentucky, Tennessee, West Virginia, northern Arkansas, southern Ohio and southwestern Pennsylvania late into Sunday. The cold front will likely freeze large bodies of water, like the Great Lakes, meaning freezing temperatures could last through winter.

While still digging out from current snowfall, another winter storm will drop more snow and ice onto the the central Plains to the Great Lakes states this weekend. The biggest hit areas will include St. Louis, Indianapolis, Detroit, Cleveland and Buffalo.