000
AGXX40 KNHC 230800
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
400 AM EDT SUN AUG 23 2009

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

GULF OF MEXICO...
WEAK COLD FRONT REACHES ACROSS NRN GULF WATERS FROM FLORIDA BIG 
BEND TO 27N89W TO GALVESTON TEXAS.  ATLC HIGH PRES RIDGE FORCED 
S ALONG 26N LEAVING LIGHT WESTERLY BREEZE N OF AXIS AND MODERATE 
E BREEZE S OF IT.  FRONTAL BOUNDARY BECOMES ILL DEFINED AS AIR 
MASS IS MODIFIED BY WARM GULF WATERS AND WEAK TROUGH DRIFT E 
OVER FLORIDA PENINSULA LATER TODAY AND TONIGHT.  

CARIBBEAN...
TROPICAL WAVE ALONG 67W MOVING W MARKS THE RETURN OF FRESH 
TRADES TO THE ERN CARIBBEAN.  MOST NOTED IS STRONG BREEZE ALONG 
COAST OF COLOMBIA AS ITS LOW PRES CENTER 1005 MB COMBINES WITH 
HIGH PRES RIDGE REBUILDING OVER SW N ATLC TO TIGHTEN GRADIENT.  
SEAS BUILD TO 11 FT JUST E OF WAVE WITHIN NEXT 24-36 HRS BUT 
SUBSIDE TO 8 FT AS TROPICAL WAVE MOVES W INTO CENTRAL AMERICA.  
HIGHER WIND AND SEAS ARE EXPECTED NEAR ACTIVE TSTMS ALONG WAVE 
AXIS S OF 13N.  

ATLANTIC W OF 55W...
HURCN BILL COMPLETELY OUT OF THE WIND FIELD PICTURE IN THIS 
FORECAST PACKAGE.  STILL SOME LARGE SWELL TO 10 FT REMAIN ALONG 
FLORIDA E COAST WITH LONG PERIODS AS HIGH AS 17 SEC.  SEAS HAVE 
PEAKED BY NOW AND GRADUAL SUBSIDING EXPECTED ALONG ALL LATITUDES 
THROUGH TODAY AND TONIGHT. 

NORTHERN PORTION OF TROPICAL WAVE ANALYZED NOW ALONG 48W BREAK 
OFF MAIN AXIS AND HEADS NW INTO SE CORNER OF BASIN BRINGING 
FRESH TO STRONG BREEZE AND SEAS TO 12-14 FT S OF 23N E OF 70W BY 
TUE AND WED.  WEAK TROUGH MOVES E FROM GULF OF MEXICO ACROSS SW 
N ATLC N OF 27N THROUGH WED. 

WARNINGS

ATLC...
NONE.

CARIBBEAN...
.NONE. 

GULF OF MEXICO...
.NONE

$$
FORECASTER WALLY BARNES