Other types of clouds are a combination of the three main types. C. Clouds at all levels usually occur at a weather front. D. Clouds are actually millions of tiny water droplets and sometimes crystals. E. Fog is actually a cloud that has formed on or near the ground. Smog is a mixture of smoke and fog that is caused by water vapor condensing around pollution in the air.
Storms bring about dramatic changes to our weather.
A. Hurricanes are spiral shaped windstorms that come from the tropics. Hurricanes usually move westward and bring torrential rain, howling winds and cause huge waves. They begin over warm oceans. Warm air from the ocean starts to rise and cumulonimbus clouds start to form. As more air is added the storm starts to spin and grow.