However, after Sandy crosses Jamaica and Cuba, things get really interesting — and dangerous — because the atmospheric setup is uniquely conducive for Sandy to become a bizarre and, possibly, extremely destructive hybrid storm, injecting its tropical moisture, warm core, and low barometric pressure into a dynamic atmospheric situation involving a diving upper-level trough, driven by the jet stream, and the resulting clash between warm and very cold air. We could end up with a “subtropical hurricane” — a category that isn’t even supposed to be able to exist — bashing the U.S. East Coast with fierce wind, rain and surge, while its back side produces extremely heavy snow over the northern Appalachians. It would be like a nor’easter on steroids.
[Emphasis in original]
“A nor’easter on steroids” does not sound delightful.
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