000
AGXX40 KNHC 121805
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
205 PM EDT SUN JUL 12 2015

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: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL
FORECAST. TAFB NWPS USED FOR WAVE HEIGHTS AND PRIMARY WAVE PERIOD.
HIGH CONFIDENCE.

MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL
FORECAST. TAFB NWPS USED FOR WAVE HEIGHTS AND PRIMARY WAVE
PERIOD. HIGH CONFIDENCE.

HIGH PRESSURE OVER THE N CENTRAL GULF WILL SLIDE W TO
THE NW GULF TODAY. A RIDGE AXIS WILL REMAIN ACROSS THE NORTHERN
GULF THROUGH MID WEEK WITH GENERALLY TRANQUIL CONDITIONS. A TROUGH
WILL PULSE FROM THE YUCATAN TO THE SW GULF EACH NIGHT...INCREASING
WINDS AND SEAS SLIGHTLY. BUOY DATA INDICATE SEAS OF 1 TO 2 FT IN
THE NORTHERN GULF...AND 2 TO 4 FT OVER THE SOUTHERN GULF.
    
...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 
55W AND 64W...

MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL
FORECAST. TAFB NWPS USED FOR WAVE HEIGHTS AND PRIMARY WAVE
PERIOD. HIGH CONFIDENCE.

ATLC RIDGE N OF THE AREA COMBINED WITH LOW PRESSURE OVER NW
COLOMBIA WILL CONTINUE TO SUPPORT FRESH-STRONG TRADES PRIMARILY
OVER THE S CENTRAL CARIBBEAN. THE ATLC RIDGE WILL SHIFT SW WITH
THE ASSOCIATED GRADIENT RELAXING SOME...AND EFFECTIVELY SHRINKING
THE AREA OF AFFECTED STRONG TRADES FROM TONIGHT THROUGH
MID WEEK...WITH GUIDANCE SUGGESTING THAT THE GRADIENT WILL
TIGHTEN AGAIN ON THU WITH FRESH-STRONG E WINDS ACROSS THE
CARIBBEAN BETWEEN 70-80W...AND ACROSS THE GULF OF HONDURAS AS
WELL.
  
...SW N ATLANTIC INCLUDING THE BAHAMAS...

MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS OFFICIAL
FORECAST. TAFB NWPS USED FOR WAVE HEIGHTS AND PRIMARY WAVE
PERIOD. HIGH CONFIDENCE INTO TUE THEN MEDIUM CONFIDENCE.

MODERATE SW FLOW IS NOTED N OF 30N W OF 77W...BETWEEN THE
SUBTROPICAL RIDGE EXTENDING FROM THE CENTRAL ATLC ALONG ROUGHLY
25N AND TROUGHING OVER THE SOUTHEAST UNITED STATES. ELSEWHERE THE
RIDGE IS MAINTAINING LIGHT TO GENTLE BREEZES N OF 25N AND
MODERATE E FLOW S OF 25N. TRADE WINDS S OF 22N WILL INCREASE
SLIGHTLY TODAY AS THE RIDGE BUILDS TO THE NORTH...ESPECIALLY N OF
HISPANIOLA EACH NIGHT THROUGH MID WEEK. OTHERWISE LITTLE CHANGE IS
EXPECTED THROUGH TUE.

$$

.WARNINGS...ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE
COORDINATED THROUGH AWIPS 12 PLANET 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.HURRICANE WARNINGS.GOV/MARINE

$$

.FORECASTER DGS. NATIONAL HURRICANE CENTER.