8/13/2019 “Polar Vortex” is 2014′s Newest Buzzword

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1/11/14 IBPS Bank Exams, IBPS Bank PO, IBPS Bank Clerk, GK Updates, Bank Jobs, Bank Results, Current Affairs: “Polar Vortex” is 2014′s Newest Buzzword

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“Polar Vortex” is 2014′s Newest Buzzword

In this past few days the word Polar Vortex and Arctic Blast are tending in

news and in social media all over.

Much of the United States has plunged into a deep freeze from record low

temperatures. One of the coldest Arctic outbreaks in two decades has

plunged into country, bringing bitterly cold temperatures to the Midwest,

South and East.

The bitter chill gripping North America is a  result of Arctic air that has

spilled southwards, and global warming may be a cause. As tundra-like

temperatures and wind chills as cold as 70 below zero fan out across the

country, everyone is blaming the "polar vortex”.

What is a polar vortex? What distinguishes it?

Polar Vortex: A polar vortex is basically a great swirling pool of extremely

cold air located tens of thousands of feet in the atmosphere. Basically an

arctic cyclone, it ordinarily spins counterclockwise around the north and

south poles.

When the vortex weakens, the air starts heading southwards, bringing

exceptional snow and chill to middle latitudes.

 A polar vortex (also

known as a polar 

cyclone, polar low,

or a circumpolar 

whirl) is a persistent,

large scale cyclone

located near either of 

a planet's

geographical poles.

On Earth, the polar vortex are located in the middle and upper troposphere

and the stratosphere. They surround the polar highs and lie in the wake of 

the polar front. These cold-core low-pressure areas strengthen in the

winter and weaken in the summer due to their reliance upon the

temperature differential between the equator and the poles.Unlike a

hurricane, these are frigid polar winds, circling the Arctic at more than 100

miles per hour.

Last month, European scientists reported that the volume of sea ice in

November was around 50 percent greater compared with a year earlier,

following a recovery in the Arctic summer.

Where on Earth can this happen?

The polar vortex canlead to major cold air 

outbreaks in any

portion of the

Northern Hemisphere

-- North America,

Europe and Asia.

This will lead to cold

snaps in multiple

locations, though not

always.

"Temperatures across half the U.S. are plummeting like a rock. So what is

this mysterious marvel and why is it invading America? The polar vortex is

a prevailing wind pattern that normally keeps extremely cold air bottled up

toward the North Pole. Occasionally, though, the vortex weakens, allowing

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8/13/2019 “Polar Vortex” is 2014′s Newest Buzzword

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