Weather puzzle

2. The visible aggregate of minute water droplets and ice particles in the atmosphere above the earth's surface.
4. All the various visible electrical discharges produced by thunderstorms. It can be cloud to cloud, cloud to ground, or cloud to air.
5. The atmospheric pressure at mean sea level
7. The physical process by which a vapor becomes a liquid.
9. A closed isobaric circulation in the atmosphere, with counter-clockwise rotation in the northern hemisphere.
11. The statistical collective of weather conditions over a specified period of time (i.e. usually several decades).
13. The leading edge of a relatively cold air mass

1. In meteorology, atmospheric motions that are predominantly vertical, i.e. usually means upward as opposed to subsidence (downward).
3. A small but vigorous whirlwind, usually of short duration.
5. In meteorology, it usually refers to cyclonic storms with considerable cloud and precipitation areas.
6. Same as a cloud except the base of the cloud is touching the earth's surface.
8. The degree of hotness or coldness as measured on some definite temperature scale by means of various types of thermometers.
10. Absence of apparent motion of the air
12. A transition zone between two air masses of different densities.
14. An area of low atmospheric pressure having closed isobars. Used interchangeably with cyclone.