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Polar vortex could return to parts of US this winter, according to forecasters | |
(about 1 hour later) | |
The polar vortex that brought even the Niagara Falls to a halt in the US last winter could make a return in the coming months. | The polar vortex that brought even the Niagara Falls to a halt in the US last winter could make a return in the coming months. |
Forecasters at AccuWeather.com predicted another harsh season for north-eastern states with more ice, snow and arctic winds causing below-freezing temperatures. | Forecasters at AccuWeather.com predicted another harsh season for north-eastern states with more ice, snow and arctic winds causing below-freezing temperatures. |
In his long-range forecast, Paul Pastelok said a polar vortex would make its presence felt when it “slips down” into the region. | In his long-range forecast, Paul Pastelok said a polar vortex would make its presence felt when it “slips down” into the region. |
“I think, primarily, we'll see that happening in mid-January into February but again, it's not going to be the same type of situation as we saw last year, not as persistent,” he added. | “I think, primarily, we'll see that happening in mid-January into February but again, it's not going to be the same type of situation as we saw last year, not as persistent,” he added. |
“The cold of last season was extreme because it was so persistent. We saw readings that we haven't seen in a long time: 15- to 20-below-zero readings.” | “The cold of last season was extreme because it was so persistent. We saw readings that we haven't seen in a long time: 15- to 20-below-zero readings.” |
Mr Pastelok was also concerned about the region from the Tennessee Valley to the Gulf Coast for “extremes” including rain, storms and “ice events”. | Mr Pastelok was also concerned about the region from the Tennessee Valley to the Gulf Coast for “extremes” including rain, storms and “ice events”. |
A man braves the cold and walks along the shore of Lake Michigan during 2014's polar vortex The picture looks more average for the American Midwest, Northern and Central Plains. | A man braves the cold and walks along the shore of Lake Michigan during 2014's polar vortex The picture looks more average for the American Midwest, Northern and Central Plains. |
Long-term forecasts are not as reliable as shorter-term predictions, meteorologists cautioned, but news that the weather may not be so extreme will be welcome to the towns and cities that were frozen to a standstill in January. | Long-term forecasts are not as reliable as shorter-term predictions, meteorologists cautioned, but news that the weather may not be so extreme will be welcome to the towns and cities that were frozen to a standstill in January. |
All 50 states were affected by the weather phenomenon, which froze beaches in Chicago, entire buildings in Nebraska and saw temperatures drop as low as -37C. | All 50 states were affected by the weather phenomenon, which froze beaches in Chicago, entire buildings in Nebraska and saw temperatures drop as low as -37C. |
Polar bears at a Chicago zoo had to be brought inside and an escaped prisoner turned himself in to get out of the cold after just a day on the run. | Polar bears at a Chicago zoo had to be brought inside and an escaped prisoner turned himself in to get out of the cold after just a day on the run. |
Even Hell froze over as the polar vortex took hold, with the Michigan town experiencing freezing temperatures of -26C. | Even Hell froze over as the polar vortex took hold, with the Michigan town experiencing freezing temperatures of -26C. |
A polar vortex is a circulating pattern of strong winds flowing around a low-pressure system of cold air, which normally sits over the Arctic during winter. | A polar vortex is a circulating pattern of strong winds flowing around a low-pressure system of cold air, which normally sits over the Arctic during winter. |
If it breaks down or splits into two, it can send very cold air further south, causing extreme conditions. | If it breaks down or splits into two, it can send very cold air further south, causing extreme conditions. |