000 ABNT20 KNHC 281727 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Sat Oct 28 2017 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on newly formed Tropical Depression Eighteen, located over the northwestern Caribbean Sea near the Isle of Youth, Cuba. A non-tropical low pressure system is expected to form during the next few days over the east-central Atlantic Ocean. Some subtropical or tropical development of this low is possible by the middle of next week while it meanders well to the southwest of the Azores. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...30 percent. && Public Advisories on Tropical Depression Eighteen are issued under WMO header WTNT33 KNHC and under AWIPS header MIATCPAT3. Forecast/Advisories on Tropical Depression Cyclone Eighteen are issued under WMO header WTNT23 KNHC and under AWIPS header MIATCMAT3. $$ Forecaster Stewart