Re: You can't argue with the past.
Posted by Ken on January 6, 2018, 2:30 pm, in reply to "You can't argue with the past. "
David, I understand what you are saying, but the whole wobbly vortex hypothesis has been around for years. The theory is that when the Arctic is cold and there is extensive ice in place, the permanent low, or polar vortex, is more robust and compact, and less likely to wobble and send masses of cold air southward, usually over the land masses rather than the oceans. There also seems to be a tendency for the vortex to get locked in place for long periods of time, so once things change the stay that way, whether normal or abnormal.
It would be interesting to see what the Arctic ice was like during the 80's and 90's, when many modern low temperature records were set in North America. I'd heard that Mt St Helens had something to do with the cold of '83, but don't know if that is settled science or supposition. I'm not up to extensively searching the net lol.
I suppose that if the extent of Arctic ice becomes less and less or disappears entirely that would mean much more variable, and maybe colder, winters in North America, and more violent and unstable spring weather. That's assuming the hypothesis proves true with the passage of time.
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