000 AGXX40 KNHC 220754 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 354 AM EDT Thu Jun 22 2017 Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea, and Tropical North Atlantic from 07N to 19N between 55W and 64W and the Southwest North Atlantic including the Bahamas ...GULF OF MEXICO... Tropical storm Cindy is located near 29.2N 93.6W or about 55 nm south-southwest of Lake Charles Louisiana and about 45 nm south- southeast of Port Arthur Texas moving north-northwest or 340 degrees at 6 kt, with maximum sustained winds of 40 kt gusts to 50 kt. The 03Z NHC forecast has Cindy on a weakening trend as it moves inland near the Lousiana-Texas border shortly. It is then forecast to track across western and northern Louisiana and into southeastern Arkansas tonight and early on Friday while eventually weakening to a post-tropical/remnant low. Winds and seas over the north-central and northwest will gradually decrease through early on Friday, with seas lowering to below 8 ft. Satellite imagery continues to reveal a north to south swath of moisture streaming northward from the Yucatan peninsula towards the far western Florida panhandle and westward to southeastern Louisiana. Scattered showers and isolated thunderstorms are observed within this moisture swath, and will continue to through at least early tonight. After Cindy moves inland, Atlantic high pressure will ridge westward across the northern Gulf waters through Sunday, and will be the feature that controls the wind regime during the next several days. A thermal trough will move off the Yucatan peninsula in the evenings and across the SW Gulf through the mornings beginning today. It will be followed by fresh to strong east to southeast today, but lesser winds in the moderate to fresh range after today. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A tropical wave along 77W, remnants of former Tropical Storm Bret, is moving westward at 13 kt. The wave is moving through an area of the Caribbean where the gradient remains rather tight between Atlantic high pressure and broad low pressure located over northern South America and the SW Caribbean Sea. The resultant east trades are within the range of fresh to strong south of 17.5N between 70W and 77W with seas of 8-12 ft. Moderate to fresh southeast to south winds are over the far northwest Caribbean north of 16N and west of 82W per latest Ascat data and buoy observations, while generally fresh to strong trades are elsewhere across the basin, and moderate to fresh northeast to east winds are over the tropical north Atlantic zones. Seas elsewhere are in the range of 7-9 ft, except 5-7 ft over the northwest Caribbean, and lower seas of 4-6 ft over the remainder of the Caribbean. Seas of 5-6 ft are the tropical north Atlantic. The tropical wave will move across the western Caribbean today through early Friday while dampening out. This will allow for the tight gradient in its wake to slacken. The 8-12 ft seas will subside to 8-9 ft this afternoon, and to less than 8 ft by early on Friday. Another tropical wave is approaching the Lesser Antilles this morning. This wave will move into the eastern Caribbean this afternoon and through Friday night and the central Caribbean Saturday through Sunday. A stronger tropical wave is forecast to quickly move through the tropical north Atlantic on Saturday, and the eastern Caribbean Sunday through early on Monday. It is expected to followed by some increase in winds and seas and accompanied by scattered showers and thunderstorms. ...SW N ATLANTIC INCLUDING THE BAHAMAS... High pressure ridging across the far northern portion of the area remains as the main feature dominating the wind regime across the basin. Latest satellite derived winds and seas along with ship, buoy, and CMAN data show moderate to fresh winds over the southern waters with light to gentle winds over the northern waters. East and northeast of the Bahamas, seas are in the 5-7 ft range over the southern waters, and 3-5 ft over the northern and central waters. Seas are lower, in the range of 1-3 ft, west and southwest of the Bahamas. The ridge axis will begin to shift southward today reaching near 28N Friday night as a weak cold front moves just offshore the SE United States. The ridge will change little through Monday. Fresh to locally strong winds will continue over the far southern waters through the next few days, with the locally strong winds mainly confined between the SE Bahamas and Hispaniola. These winds will occur mostly in a pulsing fashion in the evenings and at night. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... .GMZ011...NW GULF INCLUDING STETSON BANK... Tropical Storm Warning through early this morning. .GMZ013...N CENTRAL GULF INCLUDING FLOWER GARDEN BANKS MARINE SANCTUARY... Tropical Storm Warning N of 28N W of 90W through early this morning. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *For detailed zone descriptions, please visit: http://www.nhc.noaa.gov/abouttafbprod.shtml#OWF Note: gridded marine forecasts are available in the National Digital Forecast Database (NDFD) at: http://www.nhc.noaa.gov/marine/grids.php For additional information, please visit: http://www.nhc.noaa.gov/marine $$ .Forecaster Aguirre. National Hurricane Center.