000
AGXX40 KNHC 260554
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
154 AM EDT SAT SEP 26 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 FORECAST.
LATEST MWW3 BLENDED WITH PREVIOUS/OFFICIAL FORECAST FOR WAVE
PARAMETERS.

SURFACE TROUGH EXTENDING ACROSS CENTRAL GULF FROM NEAR 26N87.5W
TO YUCATAN PENINSULA ALONG 18N WILL DRIFT SLIGHTLY W AND INTO THE
W CENTRAL GULF THROUGH SUN. A BROAD AREA OF LOW PRES WILL FORM
ACROSS THE YUCATAN SUN THEN MOVE NORTHWARD THROUGH THE CENTRAL
GULF THROUGH TUE. THIS SYSTEM IS EXPECTED TO BRING A SIGNIFICANT
INCREASE IN WINDS AND SEAS MAINLY ACROSS THE EASTERN
GULF...INCLUDING THE YUCATAN CHANNEL.

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

MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS FORECAST WITH
HAND EDITS FOR WINDS. LATEST MWW3 BLENDED WITH PREVIOUS/OFFICIAL
FORECAST FOR WAVE PARAMETERS. 

A WEAK SUBTROPICAL RIDGE PERSISTS N OF THE AREA RESULTING IN
FRESH TO OCCASIONALLY STRONG TRADES NEAR THE COAST OF COLOMBIA
AND GENTLE TO MODERATE WINDS ACROSS THE REMAINDER OF THE BASIN.
OVER THE NEXT COUPLE OF DAYS...EXPECT PULSING WINDS IN THE 20-25
KT RANGE NEAR THE COAST OF COLOMBIA WITH BUILDING SEAS TO AROUND
8 FT. GENTLE TO MODERATE WINDS ARE EXPECTED OVER THE REMAINDER
OF THE CARIBBEAN AND MUCH OF THE TROPICAL N ATLC THROUGH MID
WEEK.

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

MODEL PREFERENCE: LATEST GFS BLENDED WITH PREVIOUS FORECAST WITH
HAND EDITS FOR WINDS. LATEST MWW3 BLENDED WITH PREVIOUS/OFFICIAL
FORECAST FOR WAVE PARAMETERS. 

WEAK AND NARROW RIDGE WILL PERSIST ALONG ABOUT 30N TODAY...THEN
WILL BE REINFORCED BY A STRONGER HIGH PRES BUILDING ACROSS THE
CENTRAL ATLC EARLY NEXT WEEK AS A COLD FRONT SINKS S INTO THE
AREA. THIS WILL ALLOW A LARGE AREA OF FRESH TO STRONG E WINDS TO
THE EAST OF THE FORECAST REGION. SWELLS OF 8 TO 10 FT IN
ASSOCIATION WITH THE FRONTAL SYSTEM WILL INVADE THE NE PART OF
AREA SUN THROUGH MON.

$$

.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.