Marine Interpretation Message
Issued by NWS
AGXX40 KNHC 290740 CCA
Marine Weather Discussion...CORRECTED
NWS National Hurricane Center Miami FL
340 AM EDT Sat Apr 29 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...
Recent scatterometer data and buoy observations indicate fresh to
strong southeast flow from the Straits of Florida to the central
Gulf to the northwest Gulf. Seas are not fully developed as yet,
with buoys and altimeter data showing mainly 5 to 8 ft, but will
build to 12 ft over much of the northwest and north central Gulf
through tonight given the long duration of strong southeast winds.
These stronger winds result from a tighter gradient between
ridging in the western Atlantic and low pressure developing over
west Texas. The low pressure will move into the central Plains
through tonight, with a trailing cold front moving off the Texas
coast early Sunday. Strong to near gale force winds will follow
the front along the coast of Mexico through Sunday, likely
reaching minimal gale force for brief periods off Tamaulipas and
Veracruz late Sunday with seas to 10 ft. The low pressure will
lift farther north of the area through Sunday, allowing winds and
seas to diminish through early Monday. The front will stall from
the western Panhandle to the southwest Gulf early Monday and
lift through late Monday. High pressure will build across the
northern Gulf allowing moderate to fresh southerly to return
across the Gulf into mid week. Looking ahead, another cold front
may move off the Texas coast late Wednesday night.
...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 64W...
Ridging from the western Atlantic through Cuba is supporting
overnight pulses of fresh to strong southeast winds near the Gulf
of Honduras, and easterly trade winds off Colombia and northwest
Venezuela and a smaller area south of Cabo Beata in southern
Dominican Republic. These pulses will persist tonight and Sunday
night, along with fresh trade winds and seas 6 to 8 ft over the
central Caribbean through late Sunday as high pressure builds
north of the area. Similarly, fresh northeast winds are likely
into the Windward Passage by late Sunday. Winds and seas diminish
from Monday through the middle of next week as the high pressure
weakens and shifts east.
...SW N ATLANTIC INCLUDING THE BAHAMAS...
Ridging extends along roughly 30N, supporting fresh to strong
southeast flow from the north coast of Hispaniola through the
southern Bahamas to the Straits of Florida. The pattern will
persist through late Sunday, with fresh to strong winds likely
near the approaches to the Windward passage. Generally gentle to
moderate east to southeast winds will persist elsewhere, with 4
to 6 ft seas. Southeast to south return flow will increase off
the coast of northeast Florida through late Monday as a weakening
cold front approaches the area from the eastern Gulf of Mexico.
The front will stall along the Florida coast by early Tuesday
then become diffuse. Winds and seas diminish late Tuesday through
Wednesday as weak high pressure builds west along roughly 28N.
.WARNINGS...Any changes impacting coastal NWS offices will be
coordinated through AWIPS II Collaboration Chat, or by
.GULF OF MEXICO...
.GMZ017...W CENTRAL GULF FROM 22N TO 26N W OF 94W...
Gale Warning Sun.
.GMZ023...SW GULF S OF 22N W OF 94W...
Gale Warning Sun into Sun night.
.CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 64W...
.SW N ATLANTIC INCLUDING THE BAHAMAS...
*For detailed zone descriptions, please visit:
Note: gridded marine forecasts are available in the National
Digital Forecast Database (NDFD) at:
For additional information, please visit:
.Forecaster Christensen. National Hurricane Center.