South America Jet Stream
(Click on the map for current conditions and forecasts.)
Updated: 6:00 AM GMT on November 22, 2009
Countries in South America:
Weather Summary
Weather Underground Forecast for Sunday, November 22, 2009.
Tropical storm activity is not expected over the Caribbean or Tropical Atlantic on Sunday. However, a strong low pressure system spinning over the Gulf states will continue kicking up wet weather with periods of heavy rain. A front will extend southward from this system and pick up moisture form the Gulf of Mexico. This front will stretch over eastern Mexico and over the Yucatan Peninsula, and bring light and scattered showers to these areas. Behind this system high pressure will build over central and northern Mexico, allowing for mostly sunny skies with mild conditions.
To the south, onshore breeze from the Caribbean Sea will continue over Central America. Thus, light and scattered coastal showers will persist over Panama and Costa Rica, extending northward into Nicaragua and Honduras on Sunday. Meanwhile, the Lesser Antilles will see another day with scattered afternoon showers. Expect the Greater Antilles to remain warm and pleasant with mostly sunny skies.
In South America, usual wet weather will continue over the northeastern countries. Onshore flow from the Pacific will trigger strong storms over Colombia, while lighter showers and thunderstorms will reach into western Brazil and down the coast into Ecuador and Peru. Meanwhile in the south, a strong low pressure system will continue spinning over Paraguay, Uruguay, and southern Brazil. Strong storm development is anticipated as this system is associated with ample moisture. Another low pressure system tracking past the southern tip of the continent will bring periods of heavy rainfall to southern Chile, while most of central and northern Chile and Argentina will remain dry and sunny. Sao Paulo will see lighter showers with highs in the mid-80(F)/ upper 20s(C), while Santiago will be mostly sunny with highs near 80(F)/ 26(C).
