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File: polar-vortex-vertical-structure-2025-jan-5-zachary-lawrence.png

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Alternate Text: 3D plot of vertical structure of the polar vortex
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3D plot of vertical structure of the polar vortex

Image caption

Shape and structure of the polar vortex throughout the stratospheric column on January 5, 2025. The top of the polar vortex is elongated, stretching toward North America, but the bottom of the vortex is confined more to the Arctic and even shifted toward Northern Europe/Asia. NOAA Climate.gov image based on graphic provided by Zac Lawrence (stratobserve.com).