South America

Weather Underground Forecast for Saturday, November 07, 2009.

Tropical storm activity will continue over the Tropical Atlantic and Caribbean on Saturday. Tropical Storm Ida will maintain its strength as it continues tracking northward and up the eastern coast of the Yucatan Peninsula. The system will continue to pour heavy showers and thunderstorms over the region due to abundant moisture fed from the Caribbean Sea. Expect tropical storm strength winds with gusts up to 73 mph and wave heights near 15 feet. Periods of intense rainfall is expected over the Yucatan with total between 1-2 inches. Meanwhile, another area of low pressure has not yet strengthened into tropical storm strength but will remain under close watch due to favorable atmospheric conditions. The system has medium potential for tropical storm development.

Sandwiched in between these two systems, Central America will get pounded by scattered showers and thunderstorms from the Yucatan to Panama. Mexico will see drier conditions building in from the northwest. Thus, most of the north and central regions will remain warm and mild weather.

The Greater Antilles may see light showers, as wet conditions develop over the Lesser Antilles due to a tropical wave moving in from the approaches the east.

In South America, usual scattered showers and thunderstorms will persist over the northern countries and stretch into western and central Brazil. In the west, strong storms will track through Ecuador and Peru, which will move southeastward into Bolivia throughout the day. A strong front will develop over southern Brazil, Paraguay, and Uruguay and create strong storms. Sao Paulo may see lingering clouds with highs in the mid-80s(F)/ upper 20s(C). Further south, onshore flow will continue kicking up light and scattered showers over southern and central Chile. Expect mostly sunny skies in Santiago with highs near 70(F)/ 21(C).