NWS National Hurricane Center Miami FL
For the North Atlantic…Caribbean Sea and the Gulf of Mexico:
The National Hurricane Center is issuing advisories on Hurricane Irma, located a couple hundred miles east of the Leeward Islands.
1. Showers and thunderstorms associated with an area of low pressure located about 1000 miles west-southwest of the Cabo Verde Islands are gradually becoming better organized. Conditions appear conducive for continued development of this system. There is a high likelihood that a tropical depression or tropical storm will form within the next day or two while the disturbance moves west-northwestward at 10 to 15 mph over the tropical Atlantic Ocean.
* Formation chance through 48 hours…high…80 percent.
* Formation chance through 5 days…high…90 percent.
2. A trough of low pressure located over the southwestern Gulf of Mexico is producing numerous showers and thunderstorms. Environmental conditions are conducive for gradual development, and this system is likely to become a tropical depression during the next couple of days while it meanders over the southwestern Gulf of Mexico. Regardless of development, heavy rains associated with this disturbance are likely over portions of eastern Mexico during the remainder of the week.
* Formation chance through 48 hours…medium…60 percent.
* Formation chance through 5 days…high…70 percent.
Source: The Daily Herald https://www.thedailyherald.sx/islands/69219-tropical-weather-outlook-800-am-edt-tue-sep-5-2017