Surface Front
How far north the front reaches will depend on the Bolivian High
- During Winter, when the High is weak, the polar front will easily cruise across Sao Paulo-Mato Grosso do Sul-Peruvian Jungle within 72 hrs after making landfall over southern Chile
- Then lag as a frontal shearline as it loses its temperature gradient…drifting across Rio de Janeiro-Minas Gerais.