Quote:




Originally Posted by Luisport

Hi everyone, this is my first post here! A portuguese forecaster say that we will see a polar vortex collapse in the first 10 days of January. What do you think about this? I don't understand nothing of it yet, so what could happen if this massive event take place? Thank you everyone for all this information posted here!
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Depends on where it collapsed.
Down into Canada or even Russia wouldn't be much use here.
In 2010 it broke and fell down into the north sea and the rest as they say is history.
That usually replaces behind with high pressure that if as can happen (and did in Nov Dec 2010) it links mid Atlantic with another high..then your winds turn north and north east advecting very icy air to us.

Thats as layman as I can describe.

That said,Portuguese man has no way of knowing what's to happen in chaos theory, so if right he's a lucky guesser.

In this thread,we're discussing a possible warming of the upper atmosphere in polar regions that could cause another 2010 as described.
Could but so many variables,we just don't know.
These things have a nasty habit of bringing snow to Athens rather than Dublin mostly.

Hope that helps