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Tropical Storm Dorian as a tropical wave just north of Puerto Rico on July 29, 2013.. A tropical wave (also called easterly wave, tropical easterly wave, and African easterly wave), in and around the Atlantic Ocean, is a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which moves from east to west across the tropics, causing areas of ...
The term "tropical wave" is one that comes up time and time again during the Atlantic and Pacific hurricane seasons. Tropical waves happen most often over the ocean, but the term "wave" is ...
A tropical cyclone is the generic term for a warm-cored, non-frontal synoptic-scale low-pressure system over tropical or subtropical waters around the world. [4] [5] The systems generally have a well-defined center which is surrounded by deep atmospheric convection and a closed wind circulation at the surface. [4]
For systems below tropical cyclone strength there are various terms used, including Tropical Disturbance, Tropical Low and Tropical Depression. [28] A tropical disturbance is defined as being a non-frontal system of synoptic scale originating over the tropics, with persistent enhanced convection or some indication of a circulation. [ 28 ]
A tropical wave causing showers and storms in the Caribbean islands over Puerto Rico and moving west at roughly 17 mph stands a 70% chance of development in either the eastern Gulf of Mexico or ...
Tropical wave 1: A tropical wave in the central Atlantic contains scattered showers. It's moving west at 11 mph. Tropical wave 2: A tropical wave in the western Caribbean extends from the ...
An announcement that tropical storm conditions (sustained winds of 39 to 73 mph) are possible within the specified coastal area within 48 hours. [1] Tropical wave A trough or cyclonic curvature maximum in the trade-wind easterlies. The wave may reach maximum amplitude in the lower middle troposphere. [1] Tropical Weather Outlook (TWO)
As of the NHC’s 8 a.m. tropical advisory, the wave was located a few hundred miles southwest of the Cape Verde Islands interacting with the Intertropical Convergence Zone where weather systems