Previous 'C3' postings have discussed the incredible and hysterical alarmist claims that Arctic warming was causing colder temperatures and snowstorms in more southern latitudes. As the CSI group of NOAA scientists determined, the principal culprits causing the December, January and February snowstorms were the climate oscillations known as El Niño and the North Atlantic Oscillation, which were simultaneously in a negative mode.
Having these two oscillations in the negative phase during winter months does not bode well for areas of Europe and the United States, in terms of cold and snow. But what happens when there are four major climate patterns all in their respective negative modes?
If all four patterns are in the negative mode, the predictability of foul winter weather happening in large areas of North America and Eurasia becomes incredibly high - and it has absolutely nothing to do with human CO2 and/or Arctic warming. These climate patterns are natural. (click on images to enlarge)
Note: The black curve in each graph represents a polynomial attempt at curve fitting. The curve indicates where the data has been in terms of overall direction at different periods. The curve has no statistical predictability value.
Update of interest, 3-2-11: While examining both the Antarctic Oscillation (AAO) and Southern Oscillation (SO), it appeared to the naked eye that both of these indicies were usually in their own negative mode when the El Niño was in its positive mode, as represented by the ONI index. By flipping the plotted data for both the SO and the AAO, the similarity for latter part of 2010, and previous periods, becomes more apparent.
The graphical depictions of these six climate patterns reveal that all were moving towards and/or occupying extreme points of their historical variation ranges, while the winter weather in the northern hemisphere was getting worse during the 2010/2011 winter (in terms of cold and precipitation).