Tuesday, November 9, 2021

Classic air glacier hits China

 



The rest of the world is being hit by tropical plumes generated in the west Pacific.  But China has a classic blob of cold air.  These big blobs are a new thing on the mimic map, or I've never noticed them before, but I think they are new.  Who cares?

A blob is clear air without a speck of water vapour that can cause rain.  They slip down from the Arctic like jelly on a plate.  That's what got Texas, and they seem to be increasingly common.  If they are increasing, then that's climate change, otherwise it is just cold weather.

These blobs have a high density and considerable momentum.  They go farther than anybody expects.  Inside, it is 20 below or colder.  Europe had one a while ago, but there none other than China right now.  Perhaps only one can zoom at a time.  Neat.  When they come down on us, it is interesting to watch how the great lakes can turn them.

ps.  I think I'll call them 'cold-airslides', as in landslides, because they go so far and so fast.



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