Category 1
Hurricane has a central barometric pressure of 28.94 inches or more and winds of 74 to 95 mph. The storm is accompanied by a 4 to 5 foot storm surge and causes minimal damage

Category 2
Pressure 28.5 inches to 28.93 inches, winds from 96 mph to 110 mph, storm surge 6 to 8 feet, damage moderate.

Category 3
Pressure 27.91 inches to 28.49 inches, winds from 111 mph to 130 mph, storm surge 9 to 12 feet, damage extensive.

Category 4
Pressure 27.17 inches to 27.90 inches, winds from 131 mph to 155 mph, storm surge 13 feet to 18 feet, damage extreme.

Category 5
Pressure less than 27.17 inches, winds greater than 155 mph, storm surge higher than 18 feet. Damage Catastrophic.