Highlight: Soaking rains for Argentina Ahead. Last week: Excessive rainfall Mato Grosso Do Sul. Discussion: More than one foot of rain fell in central Mato Grosso Do Sul last week. Generally below normal to very dry conditions elsewhere. The wet pattern lead to cool temperatures from north-central South America to northeast Argentina. Week 2 Ahead: August 19-25, 2018 Comment: Stalled frontal system soaks northern Argentina. Week 3 Ahead: August 26-Sep. 1, 2018 Comment: Northern Argentina rains ease by mid-period. Week 4 Ahead: September 2-8, 2018 Comment: Using the ECMWF “weeklies” which offer a wet pattern change over northwest South America, an El Nino-look. Argentina reverses drier and warmer.