000
AGXX40 KNHC 180729
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
330 AM EDT THU JUN 18 2009

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

GULF OF MEXICO...
HIGH PRES ANCHORED OVER N-CENTRAL GULF WATERS MAINTAINS CONTROL OF  
MOST OF GULF N OF 25N.  LIGHT TO GENTLE BREEZE OBSERVED ACROSS MOST 
OF BASIN AND MODERATE BREEZE N OF 25N W OF 95W.  WEAK TROPICAL WAVE 
ALONG 92W S OF 20N MOVE ACROSS BAY OF CAMPECHE TODAY EXPECTED TO BE 
OUT OF AREA TONIGHT.  FRESH SE BREEZE E OF WAVE AXIS HAS NO FETCH OR 
DURATION TO BUILD SEAS ABOVE 6 FT.  WINDS AND SEAS EXPECTED TO 
DIMINISH ONCE WAVE MOVES W OUT OF BASIN.  WEAK COLD FRONT MOVE INTO  
NE WATERS THU AND DISSIPATE FRI.  LIGHT WINDS BRIEFLY SHIFT NW IN 
WAKE OF FRONT. 

CARIBBEAN AND TROPICAL N ATLC W OF 55W...
TRADE WINDS INCREASE JUST OFFSHORE COAST OF COLOMBIA IN RESPONSE TO 
TIGHTENING PRES GRADIENT BETWEEN CENTRAL ATLC RIDGE N OF AREA AND 
LOW PRES 1009 MB OVER SOUTH AMERICA.  SEAS BUILD ABOVE 8 FT ALONG 
COAST W OF 70W.  CONDITIONS EXPECTED TO PERSIST THROUGH SUN.  
TROPICAL WAVE PRESENTLY ALONG 42W S OF 08N FORECAST TO APPROACH 
TROPICAL N ATLC SAT AND SUN.    

SUBTROPICAL ATLC W OF 65W...
SFC LOW PRES DEVELOPED JUST OFF GEORGIA COAST AND FORECAST TO MOVE 
EWD TO NEAR 32N74W THIS MORNING INCREASING SW FLOW OVER N WATERS FRI 
AND SAT AS IT MOVES NE ACROSS ATLC OCEAN.  ATTENDANT TROUGH EXTEND 
SW TO MOVE ACROSS N WATERS THIS AFTERNOON REACHING FROM 31N75W TO 
28N77W.  TROUGH DISSIPATES ACROSS AREA TONIGHT.  ELSEWHERE...E TO W 
RIDGE ALONG 26N DOMINATE AREA THROUGH SUN.  

WARNINGS
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

FORECASTER WALLY BARNES. TROPICAL PREDICTION CENTER.