000 AGXX40 KNHC 310546 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 146 AM EDT Tue Oct 31 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... High pressure over the NE Gulf is maintaining calm to light winds over the NE Gulf and gentle to moderate winds elsewhere, with 2 to 4 ft seas. The high pressure will shift into the Carolinas through Tue as weak low pressure stalls along a frontal boundary over central Texas. This will result in moderate to fresh SE return flow over the NW and W central Gulf through Thu with seas building to 4 to 5 ft. The winds and seas will diminish late in the week as the stalled frontal boundary becomes diffuse. Winds and seas will increase late in the week over the SE Gulf, including the Straits of Florida, as a trough over the western Atlantic advances westward through the Bahamas, tightening the pressure gradient. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... A stationary front reaching from the Windward Passage to eastern Honduras will dissipate through mid week. Fresh NE winds are ongoing within 60 nm of on the N side of the front, supporting seas to at least 7 ft near the boundary, and a few showers and thunderstorms. The fresh winds are occurring between high pressure N of the area an a broad trough over the SW Caribbean. The trough will drift W through mid week into Central America, as the high pressure over the Gulf of Mexico moves into the Carolinas. This will result in diminishing winds and seas over the NW Caribbean. A trough over the western Atlc will move W into the Bahamas allowing fresh NE winds in the lee of central Cuba and in the Windward Passage Wed into Thu. The winds will diminish over the Windward Passage and the central Caribbean Fri as the trough drifts farther W, with moderate to fresh NE winds over the NW Caribbean, and fresh trade winds over the SE Caribbean and tropical N Atlc W of 55W through late week. ...SW N ATLANTIC INCLUDING THE BAHAMAS... A stationary front reaches from Bermuda to the Windward Passage. Light to gentle breezes dominate the entire region, although northerly swell of 8 to 10 ft is still noted in buoy and altimeter satellite data N of 27N between 65W and 70W. The front will diminish to a trough through tonight and start to drift westward, reaching the northern Bahamas by late week. NE flow will increase between the trough and high pressure building over the SE United States, maintaining 4 to 6 ft seas in some of the open waters outside of the Bahamas. Looking ahead, there may be stronger NE winds off NE Florida by late Sat as the trough moves closer to the coastline into the ridge. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *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 Christensen. National Hurricane Center.