Weather Vocabulary

2. amount of moisture in the air
4. the layer of gases that surrounds Earth
7. long-term average of weather in an area
9. the process by which molecules of water vapor in the air become liquid water
10. a long period of unusually dry weather
13. day-to-day changes in atmospheric conditions, including temperature, air pressure, humidity, wind, cloud coverage, or precipitation
14. the pressure caused by the weight of a column of air pushing down on an area
17. A mass of rising warm air air that usually bring stormy weather.
18. tool that measures air pressure

1. A front where cold air moves in under a warm air mass.
2. A mass of sinking cool air that usually bring fair weather.
3. the process by which water molecules in liquid water escape into the air as water vapor
5. the temperature at which the water vapor in the air becomes saturated and condensation begins
6. elevation above sea level
8. Forms when warm air slides up and over a cold air mass; it brings gentle rain or light snow followed by warmer weather.
11. large body of air with the same temperature and humidity
12. any form of water that falls from clouds and reaches Earth's surface
15. tool that measures wind speed
16. where two different air masses meet normally causing precipitation