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AGXX40 KNHC 250737
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Marine Weather Discussion
NWS National Hurricane Center Miami FL
337 AM EDT Tue Apr 25 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...

1012 mb high pressure is building over the central Gulf of Mexico this morning following a cold front that moved southeast of the basin yesterday. Moderate to fresh southerly return flow is noted over the far northwest Gulf off the coast of Texas, between the high pressure and troughing over the southern Plains. These winds will increase to fresh to strong southerly flow by Wednesday ahead of an approaching front. The front will move off the Texas coast late Wednesday, then make slow progress eastward, before stalling from the north central Gulf to the central Bay of Campeche late Thursday. The front will lift north into early Friday ahead of a broad area of moderate to fresh southerly flow. Winds and seas will increase Saturday across much of the western Gulf ahead of a deeper lower pressure moving through Texas.


...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W...

A weak cold front reaches from the Isle of Youth off western Cuba to Cozumel off the eastern coast of Yucatan. The front will dissipate through today. Relatively weak ridging north of the area is maintaining gentle to moderate winds across the western Caribbean. Stronger ridging over the north central Atlantic is supporting moderate to fresh trade winds over the eastern Caribbean and tropical north Atlantic waters west of 55W. Little change is expected through the remainder of the week, except for brief pulses of fresh to strong winds mainly during overnight hours in the Gulf of Honduras and off Colombia starting Wednesday night. Additional pulses will occur south of Hispaniola and in the Gulf of Venezuela Friday night into Saturday.


...SW N ATLANTIC INCLUDING THE BAHAMAS...

Having moved from southeast Gulf through south Florida over the past couple of days, deep low pressure is now north of the area off the Carolina coast. A trailing cold front reaches from the low pressure to western Cuba. Winds to minimal gale force ahead of the front north of 28N have diminished, as noted in a recent scatterometer pass. A pre-frontal trough is noted 31N73w through the southern Bahamas to eastern Cuba. Ship and buoy observations farther east are still showing strong southerly winds and 8 to 10 ft seas ahead of the trough, north of 27N between 67W and 72W. A large cluster of showers and thunderstorms is noted within 120 nm of 24N69W. The front will continue slowly east through late today, then dissipate through tonight. Ridging will build across the region along 27N/28N in the wake of the front, allowing gentle to moderate winds and slightly seas through Saturday.

$$


.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.

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