Hurricane Categories - As the tropics heat up for 2008, categories of hurricanes become more relevant while watching the approach of Gustav and Hanna.

The NHC, or National Hurricane Center, defines catagories for hurricanes based on the Saffir-Simpson scale.
Here is how the categories break out.
Hurricane Catagories
Category One Hurricane:
Winds 74-95 mph (64-82 kt or 119-153 km/hr). Storm [...]