For the North Atlantic, Caribbean Sea and the Gulf of Mexico
The National Hurricane Center is issuing advisories on newly-upgraded tropical storm Harvey located about 155 miles East of Roatan Honduras.
1. A large tropical wave located about 800 miles east of the Lesser Antilles continues to show signs of organization. Environmental conditions are expected to gradually become more conducive for development as the disturbance approaches the Lesser Antilles Saturday night and Sunday. This system has a medium chance - 40 percent of becoming a tropical cyclone during the next 48 hours as it moves generally westward at 20 mph.
2. A broad low pressure system is gradually becoming better defined about 175 miles southeast of the Cape Verde Islands. The low is producing a large area of showers and thunderstorms and upper-level winds are forecast to remain conducive for some development as the disturbance moves west-northwestward or northwestward at 10 to 15 mph. This system has a medium chance – 50 percent of becoming a tropical cyclone during the next 48 hours. Regardless of development locally heavy rain and strong gusty winds are possible in the Cape Verde Islands tonight through Saturday.
Elsewhere tropical cyclone formation is not expected during the next 48 hours.
www.nhc.noaa.gov/
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