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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
800 AM EDT Mon Sep 4 2017

For the North Atlantic…Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Hurricane
Irma, located several hundred miles east of the Leeward Islands.

1. An elongated area of low pressure located several hundred miles
southwest of the Cabo Verde Islands continues to produce
disorganized showers and thunderstorms. Environmental conditions
are expected to be conducive for gradual development, and a tropical
depression is likely form later this week while the system moves
west-northwestward at 10 to 15 mph over the tropical Atlantic Ocean.
* Formation chance through 48 hours…low…30 percent.
* Formation chance through 5 days…high…70 percent.

2. A trough of low pressure located over the southwestern Gulf of
Mexico is producing disorganized showers and thunderstorms.
Environmental conditions are marginally conducive for some
slow development of this system while it drifts west-northwestward
and remains over the southwestern Gulf of Mexico during the next
few days.
* Formation chance through 48 hours…low…20 percent.
* Formation chance through 5 days…medium…40 percent.

Forecaster Roberts

Source: Graphical Tropical Weather Outlooks