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than any previous modern observations that we have. So this did occur, the reversal did occur. And what we're now looking at is the two to three week period where these effects propagate down into the troposphere. So between the 14th of November, which is today and the 20th, we're expecting the polar stratospheric vortex to recover. It's going to pick up and it'll be a vortex again. It's not like it just stops and that's it. It's going to resume its flow as a vortex. But the blocking pattern has sort of been established now. And that's why we've seen this big cool down in the eastern half of North America, western half we've seen a warm up. But this is all attributed to the breakdown of the stratospheric, the polar stratospheric vortex. Let me drop it.