The Saffir-Simpson Hurricane Wind Scale estimates potential property damage. While all hurricanes produce life-threatening winds, hurricanes rated Category 3 and higher are known as major hurricanes*. Major hurricanes can cause devastating to catastrophic wind damage and significant loss of life simply due to the strength of their winds. Hurricanes of all categories can produce deadly storm surge, rain-induced floods, and tornadoes. These hazards require people to take protective action, including evacuating from areas vulnerable to storm surge.
Hurricanes are tropical cyclones with torrential rains and sustained winds of 74 miles per hour or greater which blow in a counter-clockwise direction around a central "eye." Hurricane winds can exceed 155 miles per hour and severely affect areas hundreds of miles inland. As hurricanes approach the coast, a huge dome of water called a storm surge crashes into the coastline, causing major damage to everything in its path. About nine out of ten people killed in hurricanes are victims of the storm surge.
Hurricanes also spawn tornadoes and cause severe flooding from heavy rains. Hurricanes are classified into five categories, based on their wind speeds, central pressure and damage potential.
How long can a hurricane last?
A typical hurricane lasts anywhere from 12 to 24 hours. But a hurricane can sustain itself for as long as a month, as Hurricane John did in 1994
After a hurricane, there are certain safety standards that should be observed..
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