Weather Terms

6. the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals (roughly 14.6959 pounds per square inch).
7. a mass of snow, ice, and rocks falling rapidly down a mountainside.
9. an annual calendar containing important dates and statistical information such as astronomical data and tide tables.
10. a body of air with horizontally uniform temperature humidity, and pressure.
11. an instrument for measuring the speed of the wind, or of any current of gas.
13. the presence in or introduction into the air of a substance which has harmful or poisonous effects.
14. cloud forming a layer of rounded masses with a level base, occurring at medium altitude, usually 6,500–23,000 feet (2–7 km).

1. cloud forming a continuous uniform layer that resembles stratus but occurs at medium altitude, usually 6,500–23,000 feet (2–7 km).
2. the envelope of gases surrounding the earth or another planet.
3. having or consisting in the power to make recommendations but not to take action enforcing them.
4. the third season of the year, when crops and fruits are gathered and leaves fall, in the northern hemisphere from September to November and in the southern hemisphere from March to May.
5. the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
8. the acquisition or gradual gathering of something.
12. a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, usually near the northern or southern magnetic pole.
13. the force exerted on a surface by the air above it as gravity pulls it to Earth.