The Tricks of Mother Nature

I got a chuckle out of this posting by Anthony Watts on his Watts Up With That? web site. I've bolded the key bit:

In the last month, the Arctic Oscillation Index (AO) has gone strongly negative. You can see that it headed to its negative peak right about the time the Copenhagen Climate Conference started, so it is no wonder that they ironically experienced cold and snow there. It is also a setup for the record snow and cold Canada and the USA has seen recently.

Go read the posting, it is full of interesting facts about large scale systems that are set up to give us cold weather.

And things are only getting set up for more cold weather as cited in this other post:

Cold event setups in atmospheric circulation patterns are aligning. Two days ago I brought to your attention that there was a strong downspike in the Arctic Oscillation Index and that the North Atlantic Oscillation Index was also negative. See The Arctic Oscillation Index goes strongly negative

Yesterday, Senior AccuWeather meteorologist Joe Bastardi let loose with this stunning prediction on the AccuWeather premium web site via Brett Anderson’s Global warming blog:

What is facing the major population centers of the northern hemisphere is unlike anything that we have seen since the global warming debate got to the absurd level it is now, which essentially has been there is no doubt about all this. For cold of a variety not seen in over 25 years in a large scale is about to engulf the major energy consuming areas of the northern Hemisphere. The first 15 days of the opening of the New Year will be the coldest, population weighted, north of 30 north world wide in over 25 years in my opinion.

The Climate Prediction Center discussion for their forecast also concurs with both of the above:

THE AO INDEX WHICH RECENTLY HAS BEEN VERY STRONGLY NEGATIVE IS FORECAST TO INCREASE SLIGHTLY IN VALUE BUT REMAIN STRONGLY NEGATIVE THROUGH DAY 14. TODAYS BLEND CHART INDICATES BELOW NORMAL HEIGHTS ACROSS ROUGHLY THE SOUTHEASTERN TWO-THIRDS OF THE CONUS, AND ABOVE NORMAL HEIGHTS OVER THE NORTHWESTERN THIRD OF THE CONUS, CONSISTENT WITH A STRONGLY NEGATIVE AO.

Go to the Anthony Watts posting to see the pictures to understand the cold weather projection.