000 ABNT20 KNHC 202331 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT SAT AUG 20 2016 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Tropical Storm Fiona, located about 875 miles east-northeast of the Leeward Islands. A broad area of low pressure, associated with a tropical wave, is located about midway between the west coast of Africa and the Lesser Antilles. The associated shower activity remains disorganized, and any development of this system during the next couple of days should be slow to occur due to its large size and proximity to dry air. Environmental conditions are forecast to be more conducive for development beyond a couple of days, and a tropical depression could form by the middle of next week while the system moves westward and then west-northwestward at 15 to 20 mph across the tropical Atlantic Ocean, through the eastern Caribbean Sea, and then near the Greater Antilles. * Formation chance through 48 hours...low...10 percent * Formation chance through 5 days...medium...60 percent A weak area of low pressure, associated with another tropical wave, is moving off the coast of Senegal in western Africa while producing a large area of cloudiness and thunderstorms. Environmental conditions appear conducive for gradual development, and a tropical depression is likely to form in a few days while the system moves westward and then northwestward over the eastern tropical Atlantic Ocean. * Formation chance through 48 hours...low...30 percent * Formation chance through 5 days...high...70 percent $$ Forecaster Berg