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Surface and 500-mb
Weather Associated with a Cold Wave
qSurface high begins its
southward movement as the ridge
intensifies.
q The movement of surface cyclone from the central to eastern United States contributes to the intensification of the midwestern trough.
qAs the cyclone moves northwestward and occludes, the surface high moves southeastward.
qThe progression occurs
over a period of only two to
three days.