1 .		__________ is the short-term, day-to-day condition of the atmosphere.
2 .		_____________ is the long-term average of weather conditions in a region.
3 .		The process of __________ occurs when air is forcibly pushed up a mountain slope.
4 .		A __________ is produced when a cold front overtakes a cyclonic warm front, wedging beneath it.
5 .		A __________ is formed when a mesocyclone strikes the Earth on a continent.
6 .		A __________ is commonly associated with the formation of cumulonimbus clouds.
7 .		__________ fronts travel faster than __________ fronts.
8 .		Cyclonic storms and air masses move across the United States along __________, which shift in latitude with the seasons.
9 .		__________ air masses form only in the Northern Hemisphere, are associated with stable conditions, and dominate cold weather conditions in winter.
10 .		In North America, most thunderstorms occur in areas dominated by __________ air masses.
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