General Navigation USCG Question #1140 (Set 36)

A single barometric pressure reading of 28.60 indicates __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — a severe low pressure system

A heavily depressed barometric reading of 28.60 inches of mercury indicates an extreme pressure drop, consistently associated in maritime meteorology with the core of a severe tropical cyclone or major low-pressure storm system.

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