South America

Weather Underground Forecast for Sunday, July 06, 2008.

Low pressure over Mexico will produce heavy rain and strong thunderstorms across most of the country on Sunday. A tropical wave extending from southern Mexico out into the Pacific Ocean will trigger heavy rain and storms over southern Mexico and Guatemala. An area of low pressure associated with the tropical wave has the potential to develop, although the conditions are not particularly favorable to development. A second tropical wave moving through Central America will produce stormy conditions across the region, as well as over the oceans off of both coasts. Tropical Depression Boris is located well out over the Pacific Ocean, and will move southwestward. Meanwhile, a tropical wave will trigger heavy rainfall over Hispaniola on Sunday. The Greater Antilles will see some strong afternoon thunderstorms, while the Lesser Antilles will also see afternoon showers and storms. Tropical Storm Bertha will continue to approach the Caribbean on Sunday, but will still not threaten any land.

Low pressure and a tropical wave moving through Venezuela will trigger stormy conditions across northern South America on Sunday. Eastern Brazil will see some coastal showers due to onshore flow throughout the day, while a weak trough will produce clouds and rain over Uruguay and Argentina. Strong onshore flow resulting from a low pressure system off of the coast of Chile will produce heavy rain over the southern coast of Chile, as well as into southern Argentina.