Now you can use the full scale of the spectrophotometer. If you use a water blank as a reference, you might find that the solution alone absorbs so much light relative to distilled water that the usable scale is compressed, and the accuracy is very poor.
The SaffirâSimpson Hurricane Scale is a classification used for some Western Hemisphere tropical cyclones that exceed the intensities of tropical depressions and tropical storms. The scale divides hurricanes into five categories distinguished by the intensities of their sustained winds. In order to be classified as a hurricane, a tropical cyclone must have maximum sustained winds of at least 74 mph (33 m/s); 74 mph (64 kn; 119 km/h). The highest classification in the scale, Category 5, is reserved for storms with winds exceeding 155 mph (69 m/s); 155 mph (135 kn; 249 km/h). Source: Wikipedia.
A category-5 hurricane is the most intense hurricane on the Saffir-Simpson Hurricane Wind Scale, which is used to determine the severity of hurricanes. At category 5, hurricane winds can be in excess of 155 mph and catastrophic damage is a virtual certainty. Even a category-3 hurricane can produce winds of up to 129 mph. This is why southern Louisiana and Mississippi incurred so much damage as a result of Hurricane Katrina. Hurricane Katrina remained a category 3 as it traveled over Louisiana and parts of Mississippi. It did not downgrade to a tropical storm until it reached the northern half of Mississippi. Learn more about US History