On July 17 a tropical wave exited the coast of Africa, and moved westward.

A tropical wave exited Africa on August 24, and quickly developed a low-level circulation.

On October 10, the wave exited the coast, and it continued generally westward without development due to strong wind shear.

On August 31, a second tropical wave exited the coast of Africa at a faster speed than its predecessor.

A tropical wave exited the west coast of Africa on August 4.

A tropical wave exited Africa on September 18 with an area of organized deep convection.

On September 14, a well-defined tropical wave exited the coast of Africa.

A tropical wave exited the west coast of Africa on September 29.

A westward-moving tropical wave exited the coast of Africa on July 17.

Late on September 13, 1998, a tropical wave exited the west coast of Africa.