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1s1p__4 - technically katabatic winds but the latter term...

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April 20 2006 Prof. Weidman / NATS 101-48 1S1P Report: Local Wind Systems Local winds are caused by the circulation of air. Circulations caused by changing air temperature are called thermal circulations. A sea breeze is wind that blows from the ocean towards land because the air over the land is warmer and less dense. The leading edge of a sea breeze is called a sea breeze front. At night, when the land cools off faster than the water, a land breeze moves air from the land out over the sea. A wind system that changes direction seasonally is a monsoon wind system. In India, winter monsoon winds blow from land to sea, and in the summer from sea to land. Warm air that rises up the sides of mountains is called a valley breeze. Cooler air that moves downslope is a mountain breeze. All downslope winds are called katabatic winds. Mountain breezes are
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Unformatted text preview: technically katabatic winds, but the latter term is usually reserved for particularly cold and fast winds. The warm, dry wind that travels down the eastern slope of the Rocky Mountains is called the chinook wind. The chinook wall cloud that is formed along the front range of the Rockies indicates the chinook wind's presence and the possibility of strong winds at the foothills. A Santa Ana wind is one that blows from the east or northeast into southern California. Local winds in desert areas cause different kinds of dust storms. A haboob is caused by cold downdrafts from thunderstorms. Whirlwinds and dust devils form on clear, hot days when the ground temperature causes the air to heat up and begin the convection process....
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