Weather

3. The prevalent long term weather conditions in a particular area.
5. A soil layer below the surface of tundra regions that remains frozen permanently.
8. A cooling of the equatorial waters in the Pacific Ocean.
9. A period of abnormally hot weather lasting several days.
10. A thinning of ozone layer over Antarctica, which occurs each spring.
12. The force exerted by the interaction of the atmosphere and gravity.
13. Liquid or solid water that falls from the atmosphere and reaches the ground.
14. The temperature to which the air must be cooled for water vapor to condense and form fog or cloud.

1. An instrument for measuring atmospheric pressure.
2. Air that rises easily and can form clouds and rain.
4. A temperature scale in which zero is the freezing point of water and one hundred is the boiling point.
6. The process of a liquid changing into a vapor or gas.
7. Rain drops that freeze into ice pellets before reaching the ground.
11. A major warming if the equatorial waters in the eastern Pacific Ocean.
15. In summer, refers to four to seven degrees Celsius above normal.