000
AGXX40 KNHC 311759
MIMATS

MARINE WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT TUE JUL 31 2012

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

GULF OF MEXICO...
THE WESTERN EXTENSION OF ATLC RIDGE CONTINUES FROM CENTRAL 
FLORIDA TO S TEXAS COAST. LIGHT TO MODERATE BREEZE PREVAILS 
ACROSS THE ENTIRE BASIN WITH SEAS GENERALLY 3 FT OR LESS. A 
TROPICAL WAVE...CURRENTLY IN THE FAR WESTERN CARIBBEAN WILL MOVE 
ACROSS THE SOUTHERN PORTION OF THE GULF OF MEXICO THROUGH FRI. 

SW N ATLC S OF 31N W OF 55W...
A RIDGE OF HIGH PRESSURE PREVAILS ACROSS THE NORTHERN PART OF 
THE FORECAST AREA. LIGHT TO MODERATE WINDS WITH SEAS GENERALLY 4 
FT OR LESS WILL PREVAIL ACROSS MUCH OF THE FORECAST AREA. FRESH 
TO STRONG WINDS WITH SEAS TO 9 FT WILL PREVAIL OVER THE SOUTHERN 
PART OF THE AREA DUE TO THE NORTHERN EXTENT OF A TROPICAL WAVE 
MOVING THROUGH THE CARIBBEAN WATERS. A SURFACE TROUGH PASSING 
JUST NW OF THE BASIN WILL FRESHEN WINDS OVER THE NW CORNER OF 
THE BASIN THU AND FRI.  

CARIBBEAN SEA AND TROPICAL ATLC W OF 55W...
A TROPICAL WAVE OVER THE FAR WESTERN CARIBBEAN WATERS WILL SHIFT 
W OF THE AREA TONIGHT. A STRONGER TROPICAL WAVE OVER THE CENTRAL 
CARIBBEAN WATERS IS PRODUCING FRESH WINDS WITHIN 210 NM OF ITS 
AXIS. THIS WAVE WILL CONTINUE TO SHIFT WESTWARD THROUGH THE 
CENTRAL CARIBBEAN THROUGH WED...AND THE WESTERN WATERS THU AND 
FRI BEFORE MOVING W OF THE AREA BY SAT. A THIRD TROPICAL 
WAVE...WITH ASSOCIATED SURFACE LOW PRESSURE NEAR 10N40W WILL 
CONTINUE TO SHIFT WESTWARD THROUGH THE FORECAST PERIOD. THIS 
FEATURE IS EXPECTED TO REACH THE TROPICAL N ATLC WATERS ON 
FRIDAY AND REACH THE FAR E CARIBBEAN WATERS LATE SAT. 

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

GULF OF MEXICO...
.NONE.

CARIBBEAN SEA...
.NONE.

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

$$
FORECASTER AL