WeatherExtreme Forecast Discussion 8/22/2017 0445Z

A deep 946 mb low passes south of South America on Tuesday. A cold front trailing behind it weakens as it interacts with the Andes and remains almost stationary. Wednesday brings another, weaker cold front to the west coast, bringing northerly winds ahead of it. Another cold front moves in overnight Wednesday and early Thursday, bringing light snow to El Calafate. Clearing and winds turning westerly Thursday afternoon. Still another storm brings rain or snow late Friday.

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