A schematic of temperature measurements shows how it is 40 degrees Celsius colder inside the north polar vortex (indicated by the yellow line) compared to outside the vortex. A rare glimpse into the ...
A potential "wobble" in the polar vortex could bring Arctic air to Wisconsin and the northern U.S. around Thanksgiving. A weakened polar vortex, which is currently being observed, can lead to harsher ...
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