South America

Weather Underground Forecast for Friday, November 06, 2009.

Tropical storm activity has returned to the Tropical Atlantic on Friday. An area of low pressure in the southwestern Caribbean Sea has developed into Tropical Storm Ida and will track northward over Nicaragua and Honduras on Friday. The system is expected to lose much of its strength as it moves over land, but will continue to pour heavy showers and thunderstorms over the region due to abundant moisture. The system will decrease to a tropical depression with winds up to 39 mph and wave heights near 12 feet.

Meanwhile, to the west, another area of low pressure will remain under close supervision as it has low potential for tropical storm development. Flow around this system will continue picking up ample moisture from the Pacific Ocean and will spread wet weather over Costa Rica and Panama. Expect wet weather to stretch well into southern Mexico as a trough hovers over the region. Scattered showers and thunderstorms are expected to develop over eastern Mexico, with scattered showers developing again over the Yucatan Peninsula.

To the east, the Greater Antilles will see light showers as the tail end of a front hovers over the region. The Lesser Antilles, however, may see more significant rainfall as a tropical wave approaches from the Mid-Atlantic.

In South America, wet weather with scattered showers and thunderstorms will persist over the northern countries as well as western and central Brazil. In the west, strong storms will track through Ecuador and Peru, which will move southeastward into Bolivia throughout the day. Strongest storms over the continent will develop over southern Brazil, Paraguay, and Uruguay as a strong and moist trough lingers over the region. Sao Paulo may remain clear with mostly sunny skies and highs near 80(F)/ 26(C). Further south, onshore flow will persist over Chile as a low pressure system hovers off the west coast. Expect only a few clouds in Santiago with highs near 70(F)/ 21(C).