000
AGXX40 KNHC 241904
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
215 PM EST SAT NOV 24 2012

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 COLD FRONT STRETCHING FROM NORTHERN FLORIDA TO SRN TEXAS WILL 
PUSH FURTHER S INTO THE SOUTH-CENTRAL GULF THROUGH SUN AND 
WEAKEN. EXPECT FRESH NE WINDS AND BUILDING SEAS TO 4-5 FT N OF 
THE FRONT THROUGH TONIGHT. S OF FRONT...GENTLE TO MODERATE WINDS 
AND SEAS OF 2-3 FT WILL PREVAIL. ANOTHER COLD FRONT IS FORECAST 
TO ENTER THE NW GULF WATERS EARLY TUE MORNING. THIS FRONT WILL 
INDUCE FRESH SOUTHERLY RETURN FLOW W OF 95W MON AND MON NIGHT. 
THE SECOND FRONT WILL REACH FROM MISSISSIPPI TO NE MEXICO TUE 
EVENING...THEN WEAKEN WED. HIGH PRES IN THE WAKE OF THE FRONT 
WILL BUILD IN PRODUCING MAINLY MODERATE NE TO E WINDS.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
HIGH PRES DOMINATES THE NW CARIBBEAN. PRES GRADIENT BETWEEN THIS 
FEATURE AND A WEAK TROUGH OVER SW CARIBBEAN IS RESULTING IN 
FRESH NLY WINDS S OF 15N W OF 78W. SCATTEROMETER DATA CONFIRMED 
THE PRESENCE OF THESE WINDS WHILE AN ALTIMETER PASS INDICATED 
SEA HEIGHTS OF NEAR 8 FT. AS HIGH PRES BUILDS N OF AREA...EXPECT 
AN INCREASE IN WINDS AND SEAS...PARTICULARLY ACROSS THE CENTRAL 
CARIBBEAN MON THROUGH WED. MARINE GUIDANCE SUGGESTS WINDS OF 
20-30 KT AND BUILDING SEAS OF 8-11 FT...WITH THE STRONGEST WINDS 
AND HIGHEST SEAS NEAR THE COAST OF COLOMBIA. MODERATE TRADE 
WINDS WILL PERSIST ACROSS THE TROPICAL N ATLC WITH SEAS OF 5-6 
FT IN MIXED E AND N SWELL THOUGH SUN. WINDS WILL INCREASE TO 20 
KT WITH SEAS IN THE 8-9 FT RANGE PRIMARILY IN NE SWELL MON 
THROUGH WED.

SW N ATLC W OF 55W...
A COLD FRONT EXTENDS FROM A 990 MB EXTRATROPICAL CYCLONE LOCATED 
N OF AREA TO 31N57W TO EASTERN CUBA NEAR 21N75W. FRESH TO STRONG 
WINDS OF 20 TO 30 KT ARE NOTED ON EITHER SIDE OF THE FRONT PER 
SCATTEROMETER...SHIP AND BUOY DATA. A JASON PASS INDICATED SEA 
HEIGHTS OF 15 FT JUST W OF FRONT WHICH WILL DISSIPATE ACROSS THE 
SE WATERS THROUGH SUN. A SECOND COLD FRONT HAS ENTERED THE NW 
WATERS FOLLOWED BY FRESH NLY WINDS. THE FRONT WILL REACH FROM 
30N65W TO SOUTH FLORIDA SUN MORNING...THEN STALL AND DISSIPATE 
FROM 26N65W TO THE STRAITS OF FLORIDA MON. DEEP LAYER TROUGH 
SUPPORTING THE FRONT WILL LIFT NE TODAY...ALLOWING THE FRONT TO 
WEAKEN AND WINDS TO DIMINISH. HIGH PRES WILL BUILD INTO REGION 
MON WITH MAINLY GENTLE TO MODERATE E BREEZE EXPECTED THROUGH WED 
ACROSS MOST OF THE BASIN. THE EXCEPTION WILL BE S OF 22N WHERE 
WINDS LIKELY INCREASE TO 20 KT.   

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

GULF OF MEXICO...
.NONE.

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

SW N ATLANTIC...
.NONE.
  
FOR ADDITIONAL INFORMATION PLEASE VISIT
WWW.HURRICANES.GOV/MARINE

$$
FORECASTER GR