615 AXNT20 KNHC 040005 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 805 PM EDT Mon Sep 3 2018 Tropical Weather Discussion for North America, Central America Gulf of Mexico, Caribbean Sea, northern sections of South America, and Atlantic Ocean to the African coast from the Equator to 32N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 1800 UTC surface analysis and satellite imagery through 2330 UTC. ...SPECIAL FEATURES... The center of Tropical Storm Gordon was centered near 26.2N 82.6W at 2100 UTC, or about 45 nm WSW of Fort Myers Florida, moving WNW at 15 knots. The estimated minimum central pressure is 1006 mb. Maximum sustained winds are 45 kt with gusts to 55 kt. Scattered moderate to strong rainshowers are within 150 nm of the center. Public Advisories on Gordon are issued under the WMO/AWIPS headers WTNT32 KNHC/MIATCPAT2. Forecast Advisories are issued under WMO/AWIPS headers WTNT22 KNHC/MIATCMAT2. The center of Tropical Storm Florence was centered near 18.6N 39.8W, or about 1250 nm ENE of the Lesser Antilles, moving W at 13 knots. The estimated minimum central pressure is 995 mb. The maximum sustained winds are 60 kt with gusts to 75 kt. Widely scattered moderate to isolated strong rainshowers are within 240 nm NE of the center. Public Advisories on Florence are issued under WMO/AWIPS headers WTNT31 KNHC/MIATCPAT1. Forecast Advisories are issued under the WMO/AWIPS headers WTNT21 KNHC/MIATCMAT1. ...TROPICAL WAVES... A Caribbean Sea tropical wave axis is south of 20N along 71W, moving west at 10-15 kt. Isolated moderate rainshowers are from 16N to 20N between 65W and 71W, across parts of western Puerto Rico and surrounding waters, in the Mona Passage, and in the coastal waters of the Dominican Republic. A tropical wave axis is south of 19N along 90W, moving across Central America into the eastern Pacific. Isolated moderate rainshowers are in the NW part of the Caribbean Sea, and in southern sections of Belize, and in Guatemala just to the south of Belize. ...MONSOON TROUGH/ITCZ... The monsoon trough passes through the coastal sections of Senegal and Guinea-Bissau near 12N17W, to 08N21W, to 09N27W, and from 12N39W to 08N42W and 07N46W. The ITCZ continues from 07N46W to 08N51W and 07N57W. Scattered to numerous strong rainshowers are from 09N to 11N between 17W and 19W, and from 07N to 09N between 20W and 24W. Scattered moderate isolated strong rainshowers are elsewhere from 04N to 14N east of 27W. Isolated moderate showers are from 12N southward between 40W and 60W. ...DISCUSSION... GULF OF MEXICO... Please read the special features section for details about Tropical Storm Gordon. An upper level cyclonic circulation center is just to the NW of the NW coast of Cuba, about 180 nm to the SW of Gordon. Gordon is forecast to have a NW trajectory during the next 48 hours. Upper level anticyclonic wind flow covers the rest of the Gulf of Mexico. An upper level cyclonic circulation center is inland in Mexico. Upper level cyclonic wind flow covers the area from 23N southward from the SW corner of the Gulf of Mexico to 103W in Mexico. CARIBBEAN SEA... An upper level trough extends from the NW Cuba cyclonic circulation center to the Gulf of Honduras/southern Belize. Isolated moderate to locally strong rainshowers cover the NW corner of the Caribbean Sea from 15N northward from 80W westward. A separate upper level cyclonic circulation center is in the Jamaica Channel. A tropical wave, that is moving across the Mona Passage, will pass through the western Caribbean Sea by mid week. Fresh to strong winds will continue near the coast of Colombia through tonight. A relatively weak ridge, that is to the north of the region, will maintain moderate to fresh trade winds across most of the region through the start of the weekend. ATLANTIC OCEAN... Please read the special features section for details about Tropical Storm Florence. It is possible that the path of Florence may bring strong winds, and seas to 9 ft, to AMZ127 east of 62W by Thursday. Please read the Offshore Waters Forecast, FZNT23 KNHC/MIAOFFNT3 for more details. An upper level cyclonic circulation center is near 27N59W. A comparatively smaller-size cyclonic circulation center is near 31N63W. Upper level cyclonic wind flow, with a broad trough, covers the Atlantic Ocean from 19N northward between 50W and 70W. Scattered moderate to isolated strong rainshowers are from 18N to 22N between 58W and 62W. Widely scattered moderate to isolated strong rainshowers are from 23N to 28N between 52W and 57W. Isolated moderate to locally strong rainshowers are elsewhere in the area of upper level cyclonic wind flow. For additional information please visit http://www.hurricanes.gov/marine $$ Mundell