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Atlanta Weather | Return Of The Polar Vortex??? | News

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Atlanta Weather | Return Of The Polar Vortex???
News, Weather
Atlanta Weather | Return Of The Polar Vortex???

Cold air returning to the United States today and tomorrow is causing the word “Polar Vortex” to be tossed around again. Arctic air is on the way, but the bitter cold air will not make as deep into the south as it did in early January. The bitter cold will remain over the northern plains as temperatures in places like North and South Dakota will be 30 and 40 degrees below zero!
It will get colder here in North GA.  Temperatures will only reach the 40s for highs on Wednesday, then dip into 20s. So the coldest air we will feel this week will be over us on Thursday morning. We will gradually warm up as we get into the weekend.

The polar vortex, is not a storm but a "planetary-scale mid- to high-latitude circumpolar cyclonic circulation, extending from the middle troposphere to the stratosphere," according to a portion of the American Meteorological Society's recently updated definition.

That vortex is always present, but it's generally trapped at polar latitudes due to a barricade created by the jet stream, the air current that travels from west to east across the United States. But when the jet stream sinks farther south than usual due to changes in weather patterns, it can allow cold air to flood south and bathe the country in unusually bitter temperatures.  

While temperatures this week are not expected to plunge as low as they did in the January event, this may be the coldest event of the season relative to average temperatures for the time of year.

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