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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