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High windsHurricanes are measured by their wind velocity, according to the Saffire-Simpson Hurricance Scale. A Category 1 Hurricane has winds of at least 75 mph, while a Category 5 Hurricane has winds of 156 mph and up.
Before it headed toward Louisiana, Katrina paid a wet, windy visit to Florida. One person trying to drive through the storm in Fort Lauderdale called it "easily the most harrowing yet exciting 10 minutes of my life."