000 ABNT20 KNHC 182355 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 PM EDT Sun Jun 18 2017 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Potential Tropical Cyclone Two, located several hundred miles east-southeast of the southern Windward Islands. * Formation chance through 48 hours...high...90 percent. * Formation chance through 5 days...high...90 percent. A broad area of low pressure located near the east coast of the Yucatan Peninsula continues to produce a large area of disorganized showers and thunderstorms along with winds to gale force several hundred miles to the east and northeast of the center. Although surface pressures are falling over the northwestern Caribbean Sea, the low still lacks a well-defined center of circulation. However, gradual development of this is system is expected while it moves slowly north-northwestward across the Yucatan Peninsula overnight, and then over the southern or central Gulf of Mexico on Monday and Tuesday, where a tropical or subtropical cyclone is likely to form. Regardless of development, heavy rains are expected to continue over portions of Central America, the Yucatan Peninsula, Jamaica, the Cayman Islands, and western Cuba during the next few days. An Air Force Reserve Hurricane Hunter aircraft is scheduled to investigate this system on Monday, if necessary. For more information on this system, please see the High Seas Forecast issued by the Tropical Analysis and Forecast Branch. * Formation chance through 48 hours...high...80 percent. * Formation chance through 5 days...high...90 percent. && Public Advisories on Potential Tropical Cyclone Two are issued under WMO header WTNT32 KNHC and under AWIPS header MIATCPAT2. Forecast/Advisories on Potential Tropical Cyclone Two are issued under WMO header WTNT22 KNHC and under AWIPS header MIATCMAT2. High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and on the Web at http://www.opc.ncep.noaa.gov/shtml/NFDHSFAT1.shtml. $$ Forecaster Cangialosi/Stewart