000
AGXX40 KNHC 120621
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
130 AM EST SAT MAR 12 2011

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...
HIGH PRES IS CENTERED OVER THE NORTHERN GULF WATERS. LATEST 
ASCAT PASS INDICATES MODERATE WINDS PREVAIL ACROSS THE CENTRAL 
AND E GULF...WITH BUOY OBS INDICATING FRESH RETURN FLOW OVER THE 
FAR W GULF. THE SURFACE HIGH WILL WILL SHIFT E OF THE AREA SAT 
NIGHT WITH ASSOCIATED RIDGE EXTENDING WESTWARD ALONG THE 
NORTHERN GULF THROUGH THE FORECAST PERIOD. 

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
A COLD FRONT EXTENDING FROM EASTERN CUBA TO E HONDURAS HAS 
STALLED AND WILL GRADUALLY DISSIPATE THROUGH SUN. LATEST ASCAT 
PASS INDICATES FRESH WINDS W OF THE FRONT...AND NEAR THE COAST 
OF COLOMBIA...WITH MODERATE BREEZE PREVAILING OVER THE REMAINDER 
OF THE CARIBBEAN. HIGH PRES BUILDING N OF THE AREA WILL BRING AN 
INCREASE TO THE TRADE WINDS PRIMARILY OVER THE N CENTRAL 
CARIBBEAN SUN THROUGH TUE...AND ALONG THE COAST OF COLOMBIA. 

SW N ATLC...
A COLD FRONT FROM 31N70W TO EASTERN CUBA WILL REACH FROM 28N65W 
TO E CUBA SAT EVENING WHERE IT WILL STALL AND DISSIPATE THROUGH 
MON. LATEST ASCAT PASS INDICATES FRESH WINDS BEHIND THE FRONT. 
THESE WINDS WILL WILL DIMINISH THROUGH LATE SAT AS THE FRONT 
WEAKENS. HIGH PRES WILL SHIFT E ACROSS N FLORIDA AND INTO THE SW 
N ATLC SAT NIGHT THROUGH TUE. NE SWELL WITH HEIGHTS OF 8 TO 10 
FT AND PERIODS TO 12 SECOND WILL MIX WITH SHORTER PERIOD NW 
SWELL AND WIND WAVES OVER THE WATERS NE OF THE BAHAMAS THROUGH 
THE WEEKEND...AND SUBSIDE FROM N TO S OVER THE REGION THROUGH 
LATE MON. A WEAK COLD FRONT WILL DIP INTO THE WATERS BETWEEN N 
FLORIDA AND BERMUDA LATE TUE...FOLLOWED BY N WINDS TO 20 KT. 

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER AL