Movement
Fronts are generally guided by winds aloft, but do not move as quickly. Cold fronts and occluded fronts in the Northern Hemisphere usually travel from the northwest to southeast, while warm fronts move more poleward with time. In the Northern Hemisphere a warm front moves from southwest to northeast. In the Southern Hemisphere, the reverse is true; a cold front usually moves from southwest to northeast, and a warm front moves from northwest to southeast. Movement is largely caused by the pressure gradient force (horizontal differences in atmospheric pressure) and the Coriolis effect, which is caused by Earth's spinning about its axis. Frontal zones can be slowed down by geographic features like mountains and large bodies of warm water.
Read more about this topic: Weather Front
Famous quotes containing the word movement:
“For what we call illusions are often, in truth, a wider vision of past and present realities—a willing movement of a man’s soul with the larger sweep of the world’s forces—a movement towards a more assured end than the chances of a single life.”
—George Eliot [Mary Ann (or Marian)
“... contemporary black women felt they were asked to choose between a black movement that primarily served the interests of black male patriarchs and a women’s movement which primarily served the interests of racist white women.”
—bell hooks (b. c. 1955)
“Our movement took a grip on cowardly Marxism and from it extracted the meaning of socialism. It also took from the cowardly middle-class parties their nationalism. Throwing both into the cauldron of our way of life there emerged, as clear as a crystal, the synthesis—German National Socialism.”
—Hermann Goering (1893–1946)