A whirling mass of cool, dry air that generally brings fair weather and light winds. When viewed from above, winds spiral out of a high-pressured center in a clockwise rotation in the Northern Hemisphere. These bring sunny skies. A high pressure system is represented as a big, red, H.
A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena outside the tropics. In surface weather analyses, fronts are depicted using various colored triangles and half-circles, depending on the type of front.
Air masses can control the weather for a relatively long time period: from a period of days, to months. Most weather occurs along the periphery of these air masses at boundaries called fronts. Fronts. Front is the transition zone between air masses with distinctly different properties.
Deecnding air can not make clouds and rain, and the diverging wind patter does not bring together air masses ( and so no fronts are formed) Describe the characteristics of an easterly wave An easterly wave is a migrating, weak low pressure disturbance in the tropics the generally produces a band of small thunderstorms.