At a Glance

Tropical Storm Dorian has formed in the central Atlantic Ocean.It is several hundred miles east of the Lesser Antilles.It is forecast to reach the Lesser Antilles as a tropical storm by Tuesday.Its future after that is uncertain late in the week.

Tropical Storm Dorian has formed in the central Atlantic Ocean, and is forecast to reach the Lesser Antilles as a hurricane by Tuesday.

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Prime Time and a Prime Location

This system is located in the heart of the deep Atlantic tropics, also known as the . Tropical storms and hurricanes are most common in this region from late July into September as tropical waves move off Africa and into the Atlantic.

Such tropical waves emerging off the west coast of Africa are often referred to as because many of them pass near the Cabo Verde Islands.

These are the locations where tropical storms developed in the time frame of Aug. 21-31 during the years 1851-2015.

On average, the peak of hurricane season occurs in , according to the NHC.

Tropical storms and hurricanes are still possible all the way to the official end of the season (Nov. 30), and sometimes even beyond that point.