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Which hurricane was called the perfect storm?

Answer:
A perfect storm is an expression that describes an event where a rare combination of circumstances will aggravate a situation drastically. The term originated with how Bob Case, a meterologist, described the 1991 Nor'easter that struck New England. In that case three things happened that made for a worse-case scenario:

1. warm air from a low-pressure system coming from one direction
2. a flow of cool and dry air generated by a high-pressure from another direction, and3. tropical moisture provided by Hurricane Grace
First answer by Stormish. Last edit by Lawdog1881. Contributor trust: 119 [recommend contributor recommended]. Question popularity: 8 [recommend question].