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GEOG 2110L (50)
Lecture

MIDLATITUDE WAVE CYCLONES.docx

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Department
Geography
Course
GEOG 2110L
Professor
David Stanley
Semester
Spring

Description
MID-LATITUDE WAVE CYCLONE *** a low pressure cell that forms & moves along a (cold and warm) front. Counter- clockwise circulation (NH) around the cyclone tends to produce the wavelike deformation of the front. High pressure has no fronts Stages of the Wave Cyclone Life Cycle: (lifespan of 3-5 days) Stage 1: 2 air masses, (a cold & a warm), are set-up along a front & move parallel to it Stage 2: a wave forms & warm air starts to move poleward while cold air moves equatorward Stage 3: cyclonic (counter-clockwise) circulation develops, with general convergence at the surface and uplifting; warm overrides the cold air (frontal wedging); Cold Front & Warm Front established Stage 4: Cold front moving faster than the warm front and begins to overtake it; occulsion begins , forming an Occluded Front Stage 5: full development of an Occluded Front & maximum intensity of the wave cyclone; steep pressure gradient & strong winds Stage 6: pressure gradient weakens, energy exhausted & system dissipates Your textbook describes 4 stages: Cyclogenesis: basicall
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