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Marine Weather Discussion (Text)



000
AGXX40 KNHC 280507
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
107 AM EDT Sun May 28 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... 

A thermal trough will develop late each afternoon over the 
Yucatan Peninsula, and shift w across the southwestern gulf 
waters, generally to s of 24N between 90W and 93W, during the 
overnight and early daylight hours, and gradually lose identity 
along about 94W by late each morning. Expect a ne-e-se 15-20 kt 
wind shift along the trough axis, except 20 to 25 kt along the n 
coast of the Yucatan Peninsula this evening and on Mon evening, 
with guidance hinting that these brief strong conditions will 
not develop again till Fri evening. Expect seas to build briefly 
to 6 ft just w of the strong winds.

A surface high will meander over the far ne gulf waters through 
Thu night with fresh moderate southerly return flow over the 
waters w of 88W, increasing to fresh breeze each evening, with 3 
to 5 ft seas throughout the period. Light and variable winds 
will surround the high center, with light to moderate 
anticyclonic flow forecast e of 88W through Thu night, except 
becoming a fresh breeze across the Fl Straights during the 
evenings. Widespread fog observed over the nw gulf this morning 
will be carried in weather grids ahead of convection.  

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

Atlc high pressure will support fresh e trades, with 5-8 ft 
seas, across the central Caribbean through Tue morning, with 
strong nocturnal trades within about 90 nm of the nw coast of 
Colombia and across the Gulf of Venezuela. The pressure gradient 
will tighten on Tue, with strong e winds expanding n from the 
Colombian coast to along 15N between about 70W and 77W on Wed, 
and expanding further n and further w on Thu with seas building 
to 11 ft near 13N75W. Strong nocturnal e to se trades forecast 
across the Gulf of Honduras through Thu night. Tropical waves 
over the e Caribbean and over the tropical waters e of the 
Windwards, will continue westward accompanied by a moderate to 
fresh ne-e-se wind shift and only a slight enhancement of 
convection. 

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

A weakening cold front extending sw from 31N60W to the central 
Bahamas will dissipate today. A ridge will extend e to w along 
27N later today where it will meander through Tue, then shift n 
to along 28N on Wed and along 29N on Thu. Moderate to fresh 
easterlies are expected s of 23N, except becoming a strong e 
breeze along the n coast of Hispaniola during the evenings 
beginning on Mon. Moderate sw flow forecast n of 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:
www.nhc.noaa.gov/abouttafbprod.shtml#OWF

Note: gridded marine forecasts are available in the National
Digital Forecast Database (NDFD) at:
www.nhc.noaa.gov/marine/grids.php

For additional information, please visit:
http://www.nhc.noaa.gov/marine

$$

.Forecaster Nelson. National Hurricane Center.

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Page last modified: Sunday, 28-May-2017 05:08:06 UTC