weather map terms

3. an air mass with less atmospheric pressure than the surrounding air masses
5. amount of water vapor (or moisture) in air
6. an instrument that measures the amount of atmospheric pressure
7. the boundary between a cold a warm air mass, but neither one is displacing the other (alternating red and blue on the map)
9. an air mass with greater atmospheric pressure than the surrounding air masses
11. the boundary when a warm, moist air mass overtakes a cool, dense, and dryer air mass (red semicircles on map)
12. large bodies of air that have specific characteristics of pressure, Temperature, and humidity
14. the boundary where a cold front caught up to and pushed under a warm front (purple on map)
15. global air circulation: held to earth by gravity; influenced by convection

1. the day-to-day state of the atmosphere in a certain place
2. weather averaged over a long period of time, like 100 years or more
4. scientific tool used to measure wind speed
8. the force exerted by the atmosphere on earth's surface
10. the boundary when, moist air mass overtakes a warmer, humid air mass (blue points on map)
13. shows the weather conditions at a specific time over a specific region