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ESS124
Prof.
Jin-Yi Yu
Life Cycle of Extratropical Cyclone
•Extratropical cyclones form and intensify
quickly, typically reaching
maximum intensity (lowest central pressure) within 36 to 48 hours of formation. è development (cyclogenesis) phase
•The storms can sometime maintain a peak
intensity for one to two
days. è
mature phase
•Dissipation of a cyclone to a point where
its clouds and circulations
are no longer coherent can take several more days to over a week. è occlusion phase.