Water vapor's original source is from evaporation from the oceans, lakes, streams, or any other bodies of water. The sun's heat creates updrafts that lift the water vapor high in the atmosphere, where it is cold enough to condense the water vapor into cloud drops. For more information about emergency preparedness, visit the FEMA for Kids Web site. FEMA stands for Federal Emergency Management Agency. It is the federal agency responsible for helping people before and after disasters.
Wind always starts because two areas have different pressures or densities of air.
The wind will always blow to try to equalize these differences, so the wind blows from high to low pressure. Well, growing up in the Midwest with its amazing variety of weather always made we want to learn more about it. Sometimes during mid or late fall, a period of unseasonable warm weather occurs with clear skies, sunny but hazy days, and cool nights. Indian summer doesn't happen every year, and sometimes happens more than once in the same year. Blizzards usually last only a day in one location, since the jet stream usually moves them along pretty quickly.