Tropical Depression 15 Forms in Location That’s Rare This Time in the Hurricane Season

FLORIDA, United States, Monday October 14, 2019 – The National Hurricane Centre (NHC) in Miami says a tropical depression has formed in a part of the Atlantic where development is rare this late into the hurricane season.

Tropical depression 15, with maximum sustained winds near 35 miles per hour, formed Monday evening from a large area of low pressure located just off the western coast of Africa – about 235 miles east-southeast of the Cabo Verde Islands.

“Slight strengthening is possible during the next day or so,and the depression is forecast to become a tropical storm on Tuesday. Weakening is forecast to begin by Wednesday morning when the cyclone will be moving away from the Cabo Verde Islands,” the NHC said at the time.

But by Tuesday morning, it remained poorly organized.

“Little change in strength is forecast during the next 24 hours. Weakening is expected to begin on Wednesday, and the system is forecast to become a remnant low by Wednesday night or Thursday,” the NHC said today.

No tropical storms have formed this far east in the tropical Atlantic Ocean so late in the season since satellites started tracking them in 1966.

According to, the reason this part of the Atlantic becomes less favourable for development late in the hurricane season is that tropical waves – one of the seeds for tropical storm development – become less defined as they move off Africa. Winds in the upper atmosphere also become less favourable for tropical storm formation.

Meantime, there is a tropical wave accompanied by a small low pressure system located about 750 miles east of the southern Windward Islands. But chances of further development are low.

“Upper-level winds are expected to become increasingly hostile over the system, and significant development of this system appears unlikely while the disturbance moves westward at 15 to 20 mph,” the NHC said Tuesday morning.

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