Newest to oldest Oldest to newest Relevance Frequency 3. Here is a listing of the most intense hurricanes that hit the U.S. mainland between 1900 and 1999.
Pressure is measured in inches of mercury.
The most powerful storms have the lowest barometric pressure. The National Hurricane Center ranks a storm's intensity by its barometric pressure because wind speeds are too variable. Wind speeds taken before 1950 often were recorded by unreliable equipment.