Westerlies - Interaction With Tropical Cyclones

Interaction With Tropical Cyclones

See also: Tropical cyclone

When a tropical cyclone crosses the subtropical ridge axis, normally through a break in the high-pressure area caused by a system traversing the Westerlies, its general track around the high-pressure area is deflected significantly by winds moving towards the general low-pressure area to its north. When the cyclone track becomes strongly poleward with an easterly component, the cyclone has begun recurvature, entering the Westerlies. A typhoon moving through the Pacific Ocean towards Asia, for example, will recurve offshore of Japan to the north, and then to the northeast, if the typhoon encounters southwesterly winds (blowing northeastward) around a low-pressure system passing over China or Siberia. Many tropical cyclones are eventually forced toward the northeast by extratropical cyclones in this manner, which move from west to east to the north of the subtropical ridge. An example of a tropical cyclone in recurvature was Typhoon Ioke in 2006, which took a similar trajectory.

Read more about this topic:  Westerlies

Famous quotes containing the words interaction with, interaction and/or tropical:

    “The act of putting into your mouth what the earth has grown is perhaps your most direct interaction with the earth.”
    —Frances Moore Lappé (b. 1944)

    “Recent studies that have investigated maternal satisfaction have found this to be a better prediction of mother-child interaction than work status alone. More important for the overall quality of interaction with their children than simply whether the mother works or not, these studies suggest, is how satisfied the mother is with her role as worker or homemaker. Satisfied women are consistently more warm, involved, playful, stimulating and effective with their children than unsatisfied women.”
    —Alison Clarke-Stewart (20th century)

    “Then the bowsprit got mixed with the rudder sometimes:
    A thing, as the Bellman remarked,
    That frequently happens in tropical climes
    When a vessel is, so to speak, “snarked.””
    —Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)