The polar vortex looks terrifying from space
By Dina Spector from Business Insider
The whirlpool of cold air, known as a “polar vortex,” bringing frigid temperatures to half of the United States was captured on Monday, Jan. 6, by one of NOAA’s satellites.
In the image, the vortex is pushing southward over western Wisconsin and eastern Minnesota, according to NASA. The vortex should start moving north, back over Canada, by the end of the week.
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From NASA
Polar Vortex Enters Northern U.S.
The polar vortex is a whirling and persistent large area of low pressure, found typically over both North and South poles. The northern polar vortex was pushing southward over western Wisconsin and eastern Minnesota on Monday, Jan. 6, 2014, and was bringing frigid temperatures to half of the continental United States. It is expected to move northward back over Canada toward the end of the week.
This image was captured by NOAA’s GOES-East satellite on Jan. 6, 2014, at 11:01 a.m. EST (1601 UTC). A frontal system that brought rain to the coast is draped from north to south along the U.S. East Coast. Behind the front lies the clearer skies bitter cold air associated with the polar vortex.
The GOES image also revealed snow on the ground in Minnesota, Wisconsin, Illinois, Indiana, Ohio, Michigan, Iowa and Missouri, stretching into the Great Plains. Clouds over Texas are associated with a low pressure system centered over western Oklahoma that is part of the cold front connected to the movement of the polar vortex. The GOES image was created at NASA’s GOES Project, located at NASA’s Goddard Space Flight Center in Greenbelt, Md.
Both the northern and southern polar vortexes are located in the middle and upper troposphere (lowest level of the atmosphere) and the stratosphere (next level up in the atmosphere). The polar vortex is a winter phenomenon. It develops and strengthens in its respective hemispheres’ winters as the sun sets over the polar region and temperatures cool. They weaken in the summer. In the Northern Hemisphere, they circulate in a counterclockwise direction, so the vortex sitting over western Wisconsin is sweeping in cold Arctic air around it.
The Arctic polar vortex peaks in the Northern Hemisphere’s wintertime and has already moved southward several times this winter. In the past, it has also moved southward over Europe. On Jan. 21, 1985, the National Oceanic and Atmospheric Administration Daily Weather Map series showed a strong polar vortex centered over Maine.
The polar vortex also affects ozone. For more information on the polar vortex and how it affects ozone, visit NASA’s Ozone Watch page at: http://ozonewatch.gsfc.nasa.gov/facts/vortex_NH.html
Image credit: NOAA/NASA GOES Project
Text credit: Rob Gutro, NASA’s Goddard Space Flight Center, Greenbelt, Md.
See related story:
Limbaugh: Polar Vortex a ‘Liberal Media Hoax’
By Amy Woods from Newsmax
The polar vortex is “a hoax” perpetuated by the liberal media to further its agenda of climate change and global warming, Rush Limbaugh told listeners Monday.
According to the radio show’s transcript, Limbaugh said that “the left, the media, everybody” is using the Arctic cold front in the Midwest and Northeast as a ploy to lie to the public, Politico first reported.
“[We] are having a record-breaking cold snap in many parts of the country, and right on schedule, the media have to come up with a way to make it sound like it’s completely unprecedented,” the conservative talker said, “because they’ve got to find a way to attach this to the global-warming agenda, and they have. It’s called the polar vortex. The dreaded polar vortex.
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“If you’ve been watching television, they’ve created a graphic, all the networks have, and it basically consists of a view of the planet if you are right above the North Pole,” Limbaugh said.
“They put this big purple blob, or blue blob or red blob, depending on the network you’re looking at, over the entire North Pole, and they call that the polar vortex. It actually sounds like a crappy science-fiction movie to me, but anyway, that’s what they’re calling it.”
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