Three tropical cyclones are active in the Atlantic and Caribbean basins: IGOR, JULIA and KARL. Julia became the 11th named storm of the 2010 Atlantic hurricane season as it entered the period that historically has been the peak of the annual season, so there is more to come.
We have known this trio of storms for quite some time as they were mere tropical waves or areas of disturbed weather, emerging from equatorial Africa over the warm waters of the Atlantic to ride on Hurricane Alley as Igor and Julia have done or crossing into the Caribbean as just a blob of bad weather generating plenty of rain over the Virgin Islands and Puerto Rico and Hispaniola as what is now Tropical Storm Karl did. You can actually follow this storms from genesis to current stage through earlier postings on this site. All of these storms have been part of the “belt” of tropical activity we have highlighted and illustrated on this blog.
As we look eastward toward the Cape Verde Islands, the eastern Atlantic and equatorial Africa, there are more tropical waves being generated above the hot and humid tropical forests in Africa and moving west toward the Atlantic, which continues to be quite warm. What is noticeable already is how these tropical waves are being generated farther south and closer to the equator than say six weeks ago, a sign of the approaching change in seasons; as summer winds down and fall approaches the warmest Atlantic waters and coupled atmosphere are shifting southward.