Weather

1. the condition of Earth’s atmosphere at a particular time and place
3. A large mass of air that has similar temperature and humidity throughout
7. the boundary where air masses meet
9. Dry air masses that form over large land masses
13. warm air masses that form over the lower latitudes (the tropics) and have low air pressure
14. A front in which a cold front overtakes a warm front
15. A stalled front where warm and cold air meet in which the air does not move; brings many days of precipitation

2. violently rotating funnel cloud that grows downward from a cumulonimbus cloud.
4. The force of air pushing down on a given area
5. Humid air masses that form over oceans; water evaporates from the oceans and the air can become very humid
6. storms caused by upwelling air; cumulonimbus clouds, thunder, and lightning
8. A front in which a warm air mass replaces a cold air mass
9. A front in which a cold air mass pushes a warm air mass upward
10. The amount of water vapor in the air relative to the maximum amount of water vapor that the air could contain at that temperature
11. Cold air masses that originate over the higher latitudes and have high air pressure
12. Cyclone that forms in the tropics and spins around a low-pressure center