000 ABNT20 KNHC 162327 TWOAT TROPICAL WEATHER OUTLOOK NWS NATIONAL HURRICANE CENTER MIAMI FL 800 PM EDT WED SEP 16 2015 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Tropical Depression Nine, located in the central tropical Atlantic. Shower activity associated with a broad area of low pressure located about 500 miles southwest of the Cape Verde Islands continues to show signs of organization. Environmental conditions are expected to be conducive for the formation of a tropical depression during the next day or two while this system moves west-northwestward at 10 to 15 mph over the central tropical Atlantic. * Formation chance through 48 hours...high...70 percent * Formation chance through 5 days...high...80 percent A large area of disturbed weather, extending from the southeastern Gulf of Mexico northeastward across Florida, is associated with a broad trough of low pressure. This system is expected to move northeastward and spread heavy rains over portions of the Florida peninsula during the next day or two. Upper-level winds are not favorable for tropical cyclone formation at this time, but conditions could become a little more conducive for tropical or subtropical development during the weekend when the system reaches the western Atlantic. * Formation chance through 48 hours...low...0 percent * Formation chance through 5 days...low...20 percent && Public Advisories on Tropical Depression Nine are issued under WMO header WTNT34 KNHC and under AWIPS header MIATCPAT4. Forecast/Advisories on Tropical Depression Nine are issued under WMO header WTNT24 KNHC and under AWIPS header MIATCMAT4. $$ Forecaster Avila