MCS Case StudyMean Upper Layer Divergence/Convergence

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Evaluation of the mean layer upper level flow shows the Bolivian High centered over Bolivia. This position supports a fairly strong subtropical flow that makes landfall nearly perpendicular to the Northern Andes of Chile… inducing lee-side perturbations.

Additionally, at 500-250 hPa, an area of divergence (blue) dominates northern Argentina-Paraguay.