New tropical depression expected today or tomorrow


The National Hurricane Center has increased the chance for Invest 91, now identified as Potential Tropical Cyclone 9, to a 100 percent for further development. (image National Hurricane Center)

HOLT, Fla., Aug. 17, 2017–The National Hurricane Center has begun issuing advisories on Potential Tropical Cyclone Nine.

As of 2 p.m. EDT, the disturbance previously identified as Invest 91 is centered about 317 miles east of Barbados moving toward the west near 17 mph. Maximum sustained winds are near 35 mph with higher gusts.

This motion is expected to continue for the next couple of days.

On the forecast track, the disturbance should move through the Windward Islands and into the eastern Caribbean Sea Friday.

The system became better organized overnight and is expected to become a tropical depression later today or tonight, and could become Tropical Storm Harvey before reaching the Windward islands.

An Air Force Reserve Hurricane Hunter aircraft is investigating the system this afternoon.


Potential Tropical Cyclone 9 is expected to become a tropical storm before reaching the Windward Islands. (image NHC)

The system lined up behind PTC 9 also became a little better organized during the past 24 hours, according to the NHC.

Located about 1,200 miles east of the Lesser Antilles, this system could continue to gradually develop during the next couple of days while it moves west-northwest near 20 mph.

However, upper-level winds are expected to become less conducive for tropical depression formation when the disturbance moves north of the Leeward Islands this weekend.

The third tropical wave located over the far eastern Atlantic Ocean near the Cabo Verde Islands is producing disorganized showers and thunderstorms.

Gradual development of this system is possible during the next several days while it moves westward to west-northwestward at about 15 mph.

Formation chance through five days is 30 percent.

National Hurricane Center



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