Over the next few weeks, a climate pattern change featuring departing low pressure across Canada departing and being replaced by high pressure while low pressure tendency increases in the subtropical latitudes. The beginning of that pattern appears in the week 2-4 outlook. During the outlook, the U.S. loses the tendency for unusually warm weather and turns wetter while Canada shifts milder.

The outlook for week-2 ahead features heavy rain across much of Central Brazil to Northwest Argentina while Southeast Brazil is dry and hot. The wet weather moves into Northeast Brazil late month. In early May, Brazil shifts drier while wet weather regenerates in Argentina.