Weather Puzzle

3. The leading edge of a relatively cold air mass.
4. A homogenous mass of air, the properties of which can be identified as having been established while the air was situated over a particular region of the earth's surface.
5. A wave in the major belt of westerlies which is characterized by large length and significant amplitude.
6. The visible aggregate of minute water droplets and/or ice particles in the atmosphere above the earths's surface.
7. The statistical collective of weather conditions over a specified period of time (i.e. usually several decades).
8. A closed isobaric circulation in the atmosphere, with counter-clockwise rotation in the northern hemisphere.
10. A sudden brief increase in wind speed.
11. Relatively strong winds concentrated within a narrow stream in the atmosphere.
12. A transition zone between two air masses of different density.
13. In meteorology, atmospheric motions that are predominantly vertical, i.e. usually means upward as opposed to subsidence (downward).

1. An area of low atmospheric pressure having closed isobars. Used interchangeably with cyclone.
2. The transfer of energy within and through a conductor by means of molecular activity.
5. Winds, which over a small area, differ from those appropriate to the general pressure distribution.
7. The physical process by which a vapor becomes a liquid.
9. All the various visible electrical discharges produced by thunderstorms. It can be cloud to cloud, cloud to ground, or cloud to air.
12. Same as cloud except base of cloud is touching earth's surface.