Common weather problems occur on Earth. Scientists have designed a measurement system to determine how strong these weather problems are. Tropical cyclones are classified by force and winds using categories. A category 1 is a minor storm and is sometimes called a tropical depression. Category 5 storms are the more forceful storms and called the Super Cyclonic Storms. Tornados also have levels.
They are classified as F0 to F5. An F0 and F1 storms are weak. The F2 and F3 tornados are strong and the F4 and F5 are intense and violent. When storms such as these are heard on the news, people should pay careful attention to the level of storm it is. This will determine whether the people of a town need to evacuate.