marine weather discussion NWS National Hurricane Center Miami FL 211 am EDT Sat Jun 23 2018
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...
A weak ridge extending from the southeast Gulf to the coast of Texas is maintaining calm to light breezes over the eastern Gulf with 1 to 3 ft seas, and gentle to moderate se flow across the western Gulf with 2 to 4 ft seas. A few showers and thunderstorms are active over the Bay of Campeche due to divergent flow aloft. The ridge will persist through early next week. Se return flow will increase over the western Gulf between the ridge and weak low pressure over northern Mexico starting tonight. An additional increase in winds to 20 to 25 kt can be expected overnight just north and west of the Yucatan Peninsula as a diurnal surface trough that develops each day over the Yucatan Peninsula moves over that region each night.
...Caribbean Sea and tropical N Atlantic from 07n to 19n between 55w and 64w...
A series of weak tropical waves will migrate across the tropical Atlantic and the Caribbean basin through early next week, affecting little change in sensible weather. The main driver will continue to be ridging north of the area across the western Atlantic, supporting fresh to strong trade winds over the south central Caribbean. The areal extent of the fresh to strong trade winds will expand today across most of the central and eastern Caribbean and the tropical North Atlantic west of 55w into early next week as the high pressure builds north of the area. Trade winds will reach near gale force off Colombia by tonight. In addition, moderate to fresh easterly winds over the Gulf of Honduras will pulse to fresh to strong during the overnight hours through early next week.
...SW N Atlantic including the Bahamas...
Ridging extends from the central Atlantic through the northern Bahamas, supporting gentle to moderate winds north of 22n and fresh south of 22n, pulsing to strong off the north coast of Hispaniola at night. The ridge will build westward by late sun, allowing the area of moderate to fresh E to se winds to expand, covering an area from the Leeward Islands to the southern Bahamas. Pulses off the northern coast of Hispaniola will be longer lasting at night, with seas building to 8 ft during the overnight hours, then diminishing through the early morning. Looking ahead, the ridge weakens and retreats eastward by mid week ahead of a weak frontal boundary drifting into the waters off northeast Florida.
.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.