000
AGXX40 KNHC 201800
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
100 PM EST SUN DEC 20 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: BLEND OF GFS/WW3 GUIDANCE WITH PREVIOUS FCST.
HIGH CONFIDENCE.

HIGH PRESSURE PREVAILS OVER THE FORECAST AREA. LATEST SATELLITE
DERIVED WINDS AND SEAS ALONG WITH SHIP...BUOY...AND CMAN DATA
DEPICT FRESH TO STRONG WINDS OVER SE WATERS WITH MODERATE TO
FRESH WINDS OVER THE WESTERN WATERS. SEAS ARE IN THE 6-9 FT
RANGE OVER SE WATERS AND 4-7 FT ELSEWHERE. HIGH PRESSURE WILL
PREVAIL OVER THE REGION THROUGH FRIDAY. SE RETURN FLOW WILL
SPREAD EASTWARD TO COVER THE ENTIRE GULF WATERS BY MON. A COLD
FRONT WILL APPROACH THE NW WATERS TUE BUT IS EXPECTED TO STALL
AND DISSIPATE BEFORE IT CAN ENTER THE FORECAST AREA.

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

MODEL PREFERENCE: BLEND OF GFS/WW3 GUIDANCE WITH PREVIOUS FCST.
HIGH CONFIDENCE.

STRONG HIGH PRESSURE N OF THE AREA. LATEST SATELLITE DERIVED
WINDS AND SEAS ALONG WITH SHIP...BUOY...AND CMAN DATA DEPICT
GALE FORCE WINDS OFF THE COAST OF COLOMBIA WITH FRESH TO NEAR
GALE WINDS OVER SOUTHERN WATERS W OF 68W. FRESH TO STRONG WINDS
PREVAIL ELSEWHERE OVER MOST OF THE CARIBBEAN AND TROPICAL N ATLC
WATERS. SEAS ARE 9-13 FT IN THE SOUTH CENTRAL CARIBBEAN AND 6-9
FT ELSEWHERE. STRONG BROAD RIDGE OF HIGH PRESSURE WILL CONTINUE
N OF THE FORECAST AREA THROUGH FRI. WINDS WILL PULSE TO GALE
FORCE DURING MOST HOURS OFF THE COAST OF COLOMBIA EACH DAY...
EXCEPT BETWEEN 1800 UTC AND 0000 UTC. FRESH TO STRONG TRADES
WILL PREVAIL OVER THE REMAINDER OF THE CARIBBEAN AND EXTEND
EASTWARD INTO THE TROPICAL N ATLC. SEAS WILL BUILD TO 15-16 FT
IN THE SOUTH CENTRAL CARIBBEAN WITH THE CONTINUED LONG FETCH OF
STRONG TO NEAR GALE FORCE WINDS DURING THE NEXT SEVERAL DAYS.

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

MODEL PREFERENCE: BLEND OF GFS/WW3 GUIDANCE WITH PREVIOUS FCST.
HIGH CONFIDENCE.

A SHEAR LINE EXTENDS ACROSS THE AREA FROM 27N65W TO CENTRAL
CUBA. LATEST SATELLITE DERIVED WINDS AND SEAS ALONG WITH
SHIP...BUOY...AND CMAN DATA DEPICT FRESH TO STRONG WINDS S OF
28N W OF THE SHEAR LINE AND MODERATE TO FRESH WINDS ELSEWHERE.
SEAS ARE 7-9 FT W OF THE SHEAR LINE OUTSIDE THE BAHAMAS...6-7 FT
SE OF THE BOUNDARY...AND 2-4 FT W OF THE BAHAMAS. THE SHEAR LINE
WILL SHIFT E OF THE AREA THROUGH MON. STRONG HIGH PRESSURE RIDGE
WILL PREVAIL N OF 30N THROUGH FRI...AND SUPPORT FRESH TO STRONG
TRADES ACROSS THE REGION FOR SEVERAL MORE DAYS.

$$

.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...
.AMZ031...CARIBBEAN FROM 11N TO 15N BETWEEN 72W AND 80W
INCLUDING COLOMBIA BASIN...
     GALE WARNING THIS AFTERNOON INTO TUE. 
     GALE CONDITIONS POSSIBLE TUE NIGHT INTO FRI NIGHT.

.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 MUNDELL. NATIONAL HURRICANE CENTER.