South America

Weather Underground Forecast for Tuesday, October 07, 2008. Perhaps the most active weather in Central America will come from a tropical disturbance in the eastern Pacific Ocean. This low pressure system will bring some moisture into southern Mexico and Guatemala that will in turn translate to scattered showers and thunderstorms in the area.

Elsewhere, considerable moisture in Central America will continue to instigated widespread showers and thunderstorms south of Guatemala.

No tropical development is expected through the Caribbean Sea, but areas of precipitation will remain. The heaviest precipitation is expected in the western Caribbean Sea south of Cuba. Precipitation in the eastern Caribbean Sea will not spread over a wide area. Scattered showers and thunderstorms are anticipated through the rest of the tropical Atlantic Ocean.

For South America, a high pressure system will track through Argentina and into the Atlantic Ocean. Dry conditions will accompany the high in Paraguay, Argentina, and Chile. The high will also push any remain showers out of Uruguay and into the Atlantic Ocean.

Some showers are possible in the Sao Paulo region.

Cold air will just penetrate into eastern Argentina and Uruguay.

Rio De Janeiro will rise into the mid-70s(F)/mid-20s(C), while Buenos Aires will see temperatures in the upper 50s(F)/mid-10s(C). Santiago, Chile will rise into the upper 70s(F)/mid-20s(C).