White Christmas in Southeast. Heatwave in Hudson Bay.

December 26, 2010

Latest Northern Hem image from NOAA Earth Systems Research Lab.

AP reports:

NASHVILLE, Tenn. (AP) – A winter storm that brought a rare white Christmas to parts of the South barreled up the East Coast on Saturday night, with forecasters predicting 6 to 10 inches of snow Sunday for Washington and blizzard conditions for New York City and the New Jersey shore.

As the graph above shows, the pattern that has been in effect over the last month continues, with cold arctic air flowing out of polar regions, and warmer air being sucked northward.

Click for larger image

The pattern has been consistent across the northern hemisphere, as the Met Office image above confirms.

From the Daily Mail:

A Met Office spokesman: ‘The problem is we are not getting the warmer Atlantic air that normally keeps our winters mild.’
‘We can see that it is unseasonably warm over Canada and Greenland, this is where warm air has been diverted.’
He said that any change in the pressure over the Atlantic would need to last for several days before we would notice any change in the weather in Europe.
Freezing-cold winters and milder winters tend to cluster in groups, as the jet stream changes its path.
Experts are still unsure why this is but suspect it may be related to the EL Nino weather system as well as changes in sea temperatures and solar activity.

Media Forecast: Frequent blustering about ‘Where’s that Global Warming”, with occasional Al Gore jokes.

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5 Responses to “White Christmas in Southeast. Heatwave in Hudson Bay.”


  1. [...] Some researchers, like Jim Overland, NOAA’s Pacific Marine Environmental Laboratory, one of the world’s experts on Arctic weather and climate, believe that Global Warming may be responsible for the NAO extreme negatives of the last two years, that reduced sea ice in the arctic is changing the air flows that have historically dominated and allowing cold arctic air to flow into North America and Eurasia, while sucking warm air into the polar reaches. (where temps are now 5 to 20 degrees c above normal..) [...]


  2. [...] the climatology community has been looking at, rather than old magazine covers, is an image of a changing arctic,a new normal, that is being reshaped by, among other things, the decreasing sea ice cover in [...]


  3. [...] the climatology community has been looking at, rather than old magazine covers, is an image of a changing arctic,a new normal, that is being reshaped by, among other things, the decreasing sea ice cover in [...]


  4. [...] arctic cold to the eastern US and Eurasia over the last two winters, while at the same time sending record warmth into huge areas of northern Canada, Greenland, and the Arctic Ocean. In late autumn 2010 and early winter 2011 there was a continuation of the “warm Arctic-cold [...]


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