weather

2. the leading edge of an air mass.
3. type of weather in an area averaged over a long period of time.
4. the weight of the air.Weather, daily conditions of the atmosphere in a local area.
7. strong, rotating, low pressure weather system that contain strong winds and thunderstorms, but no fronts.
9. scientists who study the causes of weather and try to predict it.
11. pressure air mass: An air mass with less atmospheric pressure than the surrounding air masses.
12. rotating column of air stretching from a cloud to the ground.

1. instrument used for measuring air pressure.
5. the transfer of energy as electromagnetic waves; mostly visible light, UV, and infared (heat).
6. rain, snow, sleet, or hail that falls to the ground.
8. mass, body of air extending over large areas that develops and retains specific characteristics of pressure, temperature, and humidity.
10. wind system, winds that blow from the poles and act as a heat transfer system due to the unequal heating of the Earth's surface.