Marine Interpretation Message
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
000
AGXX40 KNHC 251707
MIMATS

Marine Weather Discussion
NWS National Hurricane Center Miami FL
107 PM EDT Sun Jun 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...

A 1019 mb surface high is analyzed over the NE gulf waters with
a ridge extending W-NW to NE Tx. The high will shift NW along
the ridge to over the MS Delta late this afternoon, re-
orientating the ridge SE to Fl Bay on Mon. A weak cold front
will rotate around the ridge, and dip into the NE gulf waters on
Mon night, and continue slowly S, eventually washing out
across the e and Central waters along 27N on Tue into Wed.

An inverted thermal trough will develop over the Yucatan
Peninsula during the late afternoons into the early evening
hours, and move W-NW during the overnight hours, and dissipate
over the SW Gulf by late each morning. Expect a moderate to
locally fresh NE-E-E wind shift along the trough through Wed. An
inverted trough is setting up from near BRO Tx to the western
Bay of Campeche where it is expected to meander through late
Tue. Expect light northerly winds to SW of the trough.
Otherwise, light winds forecast near the surface high and along
the ridge axis, and light to moderate return flow elsewhere
through Wed. The pressure gradient will tighten on Wed, with
moderate to fresh SE return flow developing over the W gulf on
Wed night through Thu night, with strong E winds along the N
coast of the Yucatan Peninsula on Thu evening.

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

A tropical wave along 75W will continue W across the western
Caribbean through late Mon night accompanied by a brief NE-E
fresh wind shift. A second tropical wave will move into the E
Caribbean late this afternoon accompanied by SCT RW/ISOL RW.
Strong E trades, and seas to 11 ft, are expected across most of
the Central Caribbean through tonight, with a band of these
strong E winds then spreading W across the waters from 13N to
16N to the Caribbean coast of Nicaragua on Wed, all to the N of
the monsoon trough that will extend across the SW Caribbean
by mid week.

A tropical wave is analyzed E of the area to the S of 16N
between 35W-40W. This wave should reach the Windwards on Mon
night into Tue. The wave is preceded by a large area of dust
that is expected to reduce the surface VSBY to 3 to 5 nm, and
thus is reflected in the weather grids.

..SW N ATLANTIC INCLUDING THE BAHAMAS...

An E to W ridge extending from 31N55W to Port Canaveral, Fl will
retract E on Mon allowing a weak cold front to move off the SE
CONUS. The weak front will stall briefly from 31N79W to 29N80W
on Mon evening, and then move E again on Tue, reaching from
31N75W to Ft. Pierce Fl on Tue night, then stall from just W of
Bermuda to the NW Bahamas on Wed into Thu, and dissipate on Thu
night into Fri. Light to moderate southerly flow expected ahead
of the front, and light to locally moderate northerly winds are
forecast behind the front. Light to locally moderate SE return
flow expected everywhere to the N of 23N on Thu night. Moderate
to fresh easterly trades expected to the S of the ridge, except
increasing to a strong breeze along the N coast of Hispaniola
and the Atlc approach to the Windward Passage this afternoon
into early this evening, with this pattern repeating again on
Mon afternoon and evening.

$$

.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 Nelson. National Hurricane Center.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.