outdoor winds are the horizontal movement of air. They can vary from light, refreshing breezes to outdoor winds so strong that they threaten life and property. outdoor winds are designated in degrees according to the direction from which they corne. Strength is measured in knots or miles per hour.
The Coriolis effect, caused by the earth's rotation, deflects outdoor winds to the right in the Northern Hemisphere [3] and to the left in the Southern. As a result, outdoor winds do not flow directly from the point of highest pressure to the lowest. Instead, outdoor winds approaching a low-pressure system are deflected round it rather than flowing directly into it. This creates air systems, with high or low-pressure, in which outdoor winds circulate round the centre. Horizontal air movements are important around cyclonic (low-pressure) and anticyclonic (high-pressure) systems. Horizontal and vertical movements combine to create a pattern of prevailing outdoor winds.
Monsoons [2] are seasonal reversals of wind direction. The most celebrated monsoon occurs in India, where the generally northerly outdoor winds of winter are replaced by generally southerly outdoor winds in summer. The summer outdoor winds contain a lot of water vapour, which falls in heavy rain storms.