Winter is comming NOW!!!!

rcooke · November 10, 2014, 9:25am

http://www.ctvnews.ca/canada/polar-vortex-returns-with-arctic-blast-for-parts-of-canada-1.2094210

Polar vortex returns with ‘Arctic blast’ for parts of Canada

Published Sunday, November 9, 2014 4:58PM EST
Last Updated Sunday, November 9, 2014 8:56PM EST
The frigid cold of the polar vortex is coming back, with snow and an “Arctic blast” of winter air set to sweep across Western Canada in the days ahead.
Environment Canada issued cold weather statements for all of British Columbia and parts of Alberta on Sunday, with temperatures expected to plummet up to 10 degrees Celsius below the seasonal norm. The polar vortex is expected to bring the coldest temperatures of the season, along with freezing rain or snow for many of the affected areas.
“Temperatures will drop across many regions as the coldest air so far this season moves in,” Environment Canada said in a cold air statement for B.C. Sunday. “The colder conditions are expected to persist for most of the new week.”
The southern part of Alberta is under a heavy snowfall warning, with 10 to 20 centimetres expected to fall in most areas by Monday morning.
Forecasters say the polar vortex will engulf much of Canada and the continental United States in the days ahead, and bring the first true chill of winter with it.
The U.S. is already bracing for the full force of the Arctic blast. Temperatures will plummet well below their November averages across the country, with Minnesota expecting record-breaking snowfalls.
In Canada, temperatures dropped below the freezing mark in Calgary to around -10 C on Sunday, bringing snow and biting winds to the city. Edmonton, Winnipeg and Saskatoon are also facing double-digit freezing temperatures and snow.
Weather experts say Typhoon Nuri is the main culprit behind the big chill, as the tropical storm’s presence over Alaska is forcing a cyclone of cold Arctic air to shift south in a “polar vortex” effect.
The polar vortex is a large pocket of intense cold air that typically sits over the North Pole. However, weather patterns occasionally shift that pocket south, resulting in a sharp, prolonged dip in temperature over the area affected.
Canadians last felt the icy grip of the polar vortex in January, when a deep freeze settled over the country for weeks.

eschmidt · November 10, 2014, 11:48am

Caused by global warming----:roll::shock:

mlarson · November 10, 2014, 1:00pm

Good example of supporting the global warming narrative no matter the evidence. :roll::roll:

rcooke · November 10, 2014, 1:16pm

http://www.ctvnews.ca/canada/polar-vortex-returns-with-arctic-blast-for-parts-of-canada-1.2094210

I have no idea if this is caused by Global warming but this is in the post above .Related Stories
Reading what they say sounds like just might be correct .
Be interesting to see what this winter does bring us.

Borenstein, The Associated Press
Published Tuesday, September 2, 2014 1:33PM EDT
Last Updated Tuesday, September 2, 2014 2:38PM EDT
WASHINGTON – A new study says that as the world gets warmer, parts of North America, Europe and Asia could see more frequent and stronger visits of cold air as the world gets warmer.
Researchers say that’s because of shrinking ice in the seas off Russia. Less iced would let more energy go from the ocean into the air, and that would weaken the atmospheric forces that usually keep cold air trapped in the Arctic.
But at times it escapes and wanders south, bringing with it a bit of Arctic super chill.
That can happen for several reasons, and the new study suggests](http://www.nature.com/ncomms/2014/140902/ncomms5646/full/ncomms5646.html) that one of them occurs when ice in northern seas shrinks, leaving more water uncovered.
Normally, sea ice keeps heat energy from escaping the ocean and entering the atmosphere. When there’s less ice, more energy gets into the atmosphere and weakens the jet stream, the high-altitude river of air that usually keeps Arctic air from wandering south, said study co-author Jin-Ho Yoon of the Pacific Northwest National Laboratory in Richland, Washington. So the cold air escapes instead.
That happened relatively infrequently in the 1990s, but since 2000 it has happened nearly every year, according to a study published Tuesday in the journal Nature Communications. A team of scientists from South Korea and United States found that many such cold outbreaks happened a few months after unusually low sea ice levels in the Barents and Kara seas, off Russia.
The study observed historical data and then conducted computer simulations. Both approaches showed the same strong link between shrinking sea ice and cold outbreaks, according to lead author Baek-Min Kim, a research scientist at the Korea Polar Research Institute. A large portion of sea ice melting is driven by man-made climate change from the burning of fossil fuels, Kim wrote in an email.
Sea ice in the Arctic usually hits its low mark in September and that’s the crucial time point in terms of this study, said Mark Serreze, director of the National Snow and Ice Data Center in Boulder, Colorado. Levels reached a record low in 2012 and are slightly up this year, but only temporarily, with minimum ice extent still about 40 per cent below 1970s levels, he said.
Yoon said that although his study focused on shrinking sea ice, something else was evidently responsible for last year’s chilly visit from the polar vortex.
In the past several years, many studies have looked at the accelerated warming in the Arctic and whether it is connected to extreme weather farther south, from heatwaves to Superstorm Sandy. This Arctic-extremes connection is “cutting edge” science that is hotly debated by mainstream climate scientists, Serreze said. Scientists are meeting this week in Seattle to look at the issue even more closely.
Kevin Trenberth, climate analysis chief at the National Center for Atmospheric Research in Boulder, is skeptical about such connections and said he doesn’t agree with Yoon’s study. His research points more to the Pacific than the Arctic for changes in the jet stream and polar vortex behaviour, and he said Yoon’s study puts too much stock in an unusual 2012.
But the study was praised by several other scientists who said it does more than show that sea ice melt affects worldwide weather, but demonstrates how it happens, with a specific mechanism.
Katharine Hayhoe, a Texas Tech climate scientist in Lubbock, said the study “provides important insight into the cascading nature of the effects human activities are having on the planet.”

Read more: http://www.ctvnews.ca/sci-tech/study-links-polar-vortex-to-global-warming-melting-sea-ice-1.1987280#ixzz3Ife2Lt95

Study links polar vortex to global warming, melting sea ice

Winter is comming NOW!!!!

Read more: http://www.ctvnews.ca/sci-tech/study-links-polar-vortex-to-global-warming-melting-sea-ice-1.1987280#ixzz3IfdlvlbN