Our overheated atmosphere is producing lots of early cold air.
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The reason for this extremely low pressure is again due to the jet interaction. The air the jet stream is ushering in is rather cold. In fact, it’s snowing right now in Minnesota. When you combine this cold air with the warm air of a cyclone of tropical origin, you’re bound to get rapid intensification.
The rapid intensification will also help to drag down cold air that the jet is ushering in as atmospheric heights drop.