000
AGXX40 KNHC 170703
MIMATS

MARINE WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 AM EST SUN FEB 17 2013

MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN 
SEA AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 
55W.

GULF OF MEXICO...
A FAST MOVING COLD FRONT IS PUSHING SE OF THE REGION. FRESH TO 
NEAR-GALE FORCE WINDS ARE EXPECTED BEHIND THE FRONT THROUGH 
TONIGHT. ASCAT SCATTEROMETER PASS AT 0340 UTC SHOWED FRESH TO 
STRONG NORTHERLY WINDS OVER MOST OF THE EASTERN AND SOUTHERN 
GULF. WINDS WILL CONTINUE TO DIMINISH FROM W TO E THIS MORNING 
AS HIGH PRES BUILDS IN THE WAKE OF THE FRONT. SLY RETURN FLOW 
WILL SET UP OVER THE WESTERN GULF LATER TODAY AND GRADUALLY 
SPREAD E...INCREASING TO 20-25 KT MON. A WEAKER COLD FRONT WILL 
REACH THE NW GULF TUE...THEN STALL AND DISSIPATE OVER NORTHERN 
WATERS WED. 

CARIBBEAN SEA AND TROPICAL N ATLC S OF 22N W OF 55W...
A STRONG COLD FRONT IS RACING ACROSS THE YUCATAN CHANNEL INTO 
THE NW CARIBBEAN. SURFACE OBSERVATIONS SHOW STRONG TO NEAR-GALE 
N-NW WINDS IN THE YUCATAN CHANNEL N OF THE FRONT...AND SEAS TO 
12 FT. THE FRONT WILL REACH FROM THE WINDWARD PASSAGE TO NE 
NICARAGUA LATER THIS MORNING THEN STALL AND TRANSITION TO A 
SHEAR LINE A OVER THE WEST-CENTRAL CARIBBEAN TONIGHT. STRONG 
HIGH PRES WILL BUILD N OF THE AREA THROUGH MON. FRESH TO STRONG 
NE TO E WINDS WILL SPREAD EASTWARD ACROSS THE REMAINDER OF THE 
AREA MON NIGHT AND TUE...THEN DIMINISH IN THE NW CARIBBEAN WED 
AS THE PRES GRADIENT RELAXES.

SW N ATLC S OF 31N W OF 55W...
A STRONG COLD FRONT RACING ACROSS THE REGION EXTENDS FROM 31N73W
TO NORTHERN CUBA. ASCAT SCATTEROMETER PASS AT 0200 UTC SHOWED 
SMALL AREA OF GALE-FORCE WINDS NEAR 30N78W. THE FRONT WILL REACH 
FROM 31N66W TO WINDWARD PASSAGE LATER THIS MORNING...FROM 24N65W 
TO HISPANIOLA EARLY MON...THEN STALL AND TRANSITION TO A SHEAR 
LINE THROUGH MON NIGHT. GALE FORCE WINDS ARE EXPECTED N OF 28N W 
OF THE FRONT SPREADING EASTWARD TO 65W THROUGH THIS EVENING. GALE
WARNING IN EFFECT FOR ZONES AMZ111...AMZ113 AND AMZ115. LARGE NW 
SWELL TO 16 FT ALONG 31N WILL FOLLOW THE FRONT...SLOWLY SUBSIDING
EARLY NEXT WEEK. HIGH PRES WILL BUILD W OF THE FRONT SUN NIGHT...
AND WINDS WILL DIMINISH ACROSS MOST OF THE WATERS. FRESH TO 
STRONG NE-E WINDS WILL DEVELOP S OF 24N MON THROUGH WED WHERE 
THE PRES GRADIENT WILL BE TIGHT. A WEAK COLD FRONT WILL REACH THE
NW PORTION WED.

NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE

WARNINGS...

GULF OF MEXICO...
.NONE. 

CARIBBEAN SEA AND TROPICAL N ATLC...
.NONE.

SW N ATLC...
.GALE WARNING...AMZ111-113-115.

FOR ADDITIONAL INFORMATION PLEASE VISIT
WWW.HURRICANES.GOV/MARINE

$$
FORECASTER MUNDELL