000
AGXX40 KNHC 081810
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
210 PM EDT SUN SEP 8 2013

MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN
SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND
64W...AND THE SW N ATLANTIC INCLUDING THE BAHAMAS.

...GULF OF MEXICO...

MODEL PREFERENCE: GFS BLENDED WITH OFFICIAL FORECAST WITH HIGH
CONFIDENCE

RIDGE OF HIGH PRESSURE PREVAILS N OF THE AREA OVER THE GULF COAST
STATES WITH A TROUGH OVER THE SW GULF WATERS. LATEST SATELLITE
DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY AND CMAN DATA DEPICT
GENTLE TO MODERATE WINDS PREVAIL OVER THE FORECAST AREA WITH SEAS
IN THE 2 TO 4 FT RANGE. THE SURFACE RIDGE WILL CONTINUE TO
PREVAIL N OF THE AREA THROUGH THE FORECAST AREA WHILE THE TROUGH
DISSIPATES OVER THE NEXT 24 HOURS. A NEW SURFACE TROUGH MAY FORM
OVER THE SW GULF WATERS BY MID WEEK. THIS TROUGH WILL DRIFT
WESTWARD THROUGH FRI.

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

MODEL PREFERENCE: GFS BLENDED WITH OFFICIAL FORECAST WITH HIGH
CONFIDENCE

A TROPICAL WAVE IS MOVING THROUGH THE FAR WESTERN CARIBBEAN
WATERS AND WILL REACH THE YUCATAN PENINSULA THIS EVENING. BROAD
TROUGHING PREVAILS N OF THE AREA OVER THE SW N ATLC WATERS. THIS
IS MAINTAINING A WEAK PRESSURE GRADIENT OVER THE CARIBBEAN WATERS.
LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY AND
CMAN DATA DEPICT GENTLE TO MODERATE WINDS OVER THE TROPICAL N ATLC
WATERS AND THE EASTERN CARIBBEAN WITH LIGHT TO GENTLE WINDS OVER
THE CENTRAL AND WESTERN CARIBBEAN. SEAS ARE IN THE 4-6 FT RANGE
OVER THE TROPICAL N ATLC WATERS...3-5 FT OVER THE EASTERN
CARIBBEAN WATERS...AND IN THE 2-3 FT RANGE IN THE CENTRAL AND
WESTERN CARIBBEAN WATERS. A SURFACE RIDGE WILL BUILD OVER THE SW N
ATLC WATERS FROM THE EAST AS THE TROUGH AND LOW IN THE SW N ATLC
WATERS SHIFTS NORTHWARD EARLY THIS WEEK. THIS WILL TIGHTEN THE
PRESSURE GRADIENT SLIGHTLY OVER THE CENTRAL CARIBBEAN WATERS AND
FRESHEN THE TRADEWIND FLOW MON THROUGH FRI.


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

MODEL PREFERENCE: GFS BLENDED WITH OFFICIAL FORECAST WITH HIGH
CONFIDENCE

THE REMNANT LOW OF GABRIELLE IS CENTERED NEAR 25N69W WITH TROUGH
PREVAILING OVER THE EASTERN WATERS. LATEST SATELLITE DERIVED
WINDS AND SEAS ALONG WITH SHIP...BUOY AND CMAN DATA DEPICT FRESH
TO STRONG WINDS IN THE EAST SEMICIRCLE OF THE LOW AND MODERATE TO
FRESH WINDS OVER THE REMAINDER OF THE AREA EAST OF THE TROUGH
WHILE LIGHT TO GENTLE WINDS PREVAIL W OF THE TROUGH. SEAS ARE IN
THE 6-8 FT RANGE IN THE E SEMICIRCLE OF THE LOW...IN THE 5-6 FT
RANGE E OF THE TROUGH...4-5 FT W OF THE TROUGH...AND 1-3 FT W OF
THE BAHAMAS. A SURFACE RIDGE WILL BUILD IN FROM THE EAST AS THE
REMNANT LOW OF GABRIELLE AND ASSOCIATED TROUGH WILL SLOWLY LIFT
NORTHWARD MON THROUGH WED.
 
$$

.WARNINGS...ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE
COORDINATED THROUGH AWIPS 12 PLANET CHAT OR BY TELEPHONE:

.GULF OF MEXICO...
GMZ011...NONE.
GMZ013...NONE.
GMZ015...NONE.
GMZ017...NONE.
GMZ019...NONE.
GMZ021...NONE.
GMZ023...NONE.
GMZ025...NONE.

.CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN
55W AND 64W...
AMZ011...NONE.
AMZ013...NONE.
AMZ015...NONE.
AMZ017...NONE.
AMZ019...NONE.
AMZ021...NONE.
AMZ023...NONE.
AMZ025...NONE.
AMZ027...NONE.
AMZ029...NONE.
AMZ031...NONE.
AMZ033...NONE.
AMZ035...NONE.
AMZ037...NONE.
AMZ039...NONE.

.SW N ATLANTIC INCLUDING THE BAHAMAS...
AMZ111...NONE.
AMZ113...NONE.
AMZ115...NONE.
AMZ117...NONE.
AMZ119...NONE.
AMZ121...NONE.
AMZ123...NONE.
AMZ125...NONE.
AMZ127...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.HURRICANES.GOV/MARINE

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.