with Peter Sinclair
Strong high pressure slumping south through the lower states with impressive digging jet stream allows for the rapid intensification of a surface cyclone east of the Rockies along the strong thermal gradient.
— Scott Duncan (@ScottDuncanWX) December 21, 2022
An ideal mechanism for pushing the deep cold all the way south. pic.twitter.com/2sQNHqJpXJ
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December 22, 2022 at 12:47 pm
Some weather geeks pointed out that atmospheric pressures were reaching record highs. Here the high pressures hit the top of the color legend: