Weather+Systems;+Westerly+Winds

=__​Weather System: Westerly Winds__= Westerly Winds is a prevailing wind that blows from west to east. The westerlies are strongest in the winter hemisphere and times when the pressure is lower over the poles, while they are weakest in the summer hemipshere and when pressure are higher over the poles. The westerlies play an important role in carrying the warm, equatorial waters and winds to the Western coasts of continewnts, especially in the southern hemisphere because of its vast oceanic expanse. When pressure s are lower over the poles, the strength of the Westerlies increases, which has the effect of warming the midlatitudes. This occurs when the Arctic Oscillation is positive, and during winter low pressure near the poles is stronger thank it would be during the summer. When it is negative pressures are highert over the poles, blowing from teh direction of the poles towards the equator, which brings cold air into the mid-latitudes. Three large atmosphere circulation cells-Hadley cell, a Ferrel cell, and a Polar cells-existin each hemisphere. Air circulation within and between, cell powered by uneven solar heating and influenced by the Coriolis effect, generates predictable long-term patterns of winds. The westerlies, surface winds of the Ferrel cells centered at about 45 degrees North and 45 degrees South latitude, flow between the horse latitude and the boundaries of the polar cells in each hemisphere.