These dates conventionally delimit the period of each year when almost all tropical cyclones form in the northeastern Pacific Ocean.

These dates conventionally delimit the period during which most tropical cyclones form in the northeastern Pacific Ocean.

These dates limit the time period when most tropical cyclones form in the northeastern Pacific Ocean.

The wave entered the northeastern Pacific Ocean on June 16, where it generated an area of increased cloudiness.

The system moved across the Atlantic and entered into the northeastern Pacific Ocean.

The system became better organized as it moved into the northeastern Pacific Ocean.

The wave moved across Central America into the northeastern Pacific Ocean on July 15.

While Fran dissipated shortly after that, the tropical wave progressed into the northeastern Pacific Ocean.

The wave moved across Central America and into the northeastern Pacific Ocean, on August 29.

The wave entered the northeastern Pacific Ocean and began to show signs of organized thunderstorm development.