Intertropical Convergence Zone it is sometimes referred to as a monsoon trough, a usage more common in Australia and parts of Asia. In the seamen's speech, the zone is referred to as the doldrums because of its erratic (monotonous) weather patterns with stagnant calms and violent thunderstorms. The ITCZ appears as a band of clouds, usually thunderstorms, that encircle the globe near the Equator. In the Northern Hemisphere, the trade winds move in a southwestward direction from the northeast, while in the Southern Hemisphere, they move northwestward from the southeast. When the ITCZ is positioned north or south of the Equator, these directions
Mohawk–Hudson convergence Mohawk–Hudson convergence Mohawk–Hudson convergence (MHC) is a mesoscale meteorology phenomenon occurring over the Capital District region of upstate New York, United States. The small convergence zone forms within specific weather conditions sometimes found in the wake of extratropical cyclones shifting east of the area. Given air pressure decreasing with both longitude and latitude, as well as weak synoptic low-level flow, winds are channeled east along the Mohawk Valley and south through the Hudson Valley, converging over Albany. With sufficient moisture in the lower atmosphere, a localized area of precipitation may form where the valleys meet, extending for several miles around