000
AGXX40 KNHC 301757
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT THU JUL 30 2009

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

GULF OF MEXICO...
AN E TO W RIDGE WILL MEANDER ACROSS THE N WATERS THROUGH THE 
PERIOD. SLY RETURN FLOW WILL PULSE AT 15 TO 20 KT OVER THE W 
WATERS THROUGH TONIGHT THEN THE GRADIENT WILL RELAX SUPPORTING 
SE 10 TO 15 KT OVER THE W PART WHILE SLY WINDS WILL BECOME 
LIGHT...AND OCCASIONALLY LIGHT AND VARIABLE...OVER THE N WATERS 
ALONG THE RIDGE AXIS. EXPECTING THE NEAR SUNSET BACKING WIND 
SHIFT TO THE N AND NE AT 15 TO 20 KT ALONG THE NE YUCATAN 
PENINSULA EACH DAY. THE NEXT TROPICAL WAVE IN THE E CARIBBEAN 
HAS BEEN MOVING W AT 20 KT. ASSUMING THIS MOTION CONTINUES...THE 
WAVE WILL REACH THE FL STRAITS FRI NIGHT AND MOVE THROUGH THE 
YUCATAN CHANNEL SAT AND BAY OF CAMPECHE SAT NIGHT AND SUN.     

TROPICAL ATLC AND CARIBBEAN SEA...
STRONG ELY TRADES CONTINUE ACROSS THE CARIBBEAN WITH A MINIMAL 
GALE CURRENTLY OVER THE S CENTRAL PART...BUT EXPECTED TO 
DIMINISH TO JUST BELOW GALE BY MID AFTERNOON. A TROPICAL WAVE 
OVER THE E CARIBBEAN HAS BEEN PROGRESSING W AT 20 KT. THIS 
SHOULD PLACE THE WAVE AXIS ALONG 76W FRI...AND ALONG 86W SAT. 
THE NEXT WAVE ALONG 35W ATTM HAS BEEN MOVING W AT ABOUT 17 KT. 
THIS MOTION SHOULD MOVE THE WAVE TO ALONG 55W LATE SAT NIGHT AND 
INTO E CARIBBEAN LATE SUN NIGHT. SO EXPECT THE FRESH E TRADES TO 
CONTINUE MOST OF THE PERIOD EXCEPT GRADIENT RELAXING AND 
SUPPORTING MOSTLY E 10 TO 15 KT OVER THE WATERS E OF 64W SAT 
THROUGH MON...THEN INCREASING TO 15 TO 20 KT AGAIN MON NIGHT AND 
TUE. 
 
SW ATLC W OF 55W...
A RIDGE DISSECTS THE WATERS FROM JUST S OF BERMUDA ACROSS THE NW 
BAHAMAS TO CENTRAL FL AND EXPECTED TO CHANGE LITTLE THROUGH THE 
PERIOD. GENERALLY EXPECTING S TO SW WINDS AT 10 TO 15 KT OVER 
THE NW WATERS...AND SE TO S OVER THE NE WATERS. E TO SE WINDS AT 
10 TO 15 KT OVER THE AREA FROM 27N TO 23N. S OF 23N...EXPECTING 
E WINDS AT 15 TO 20 KT...BUT WINDS SHOULD RELAX TO E 15 KT SAT 
AND SUN THEN INCREASE AGAIN TO 15 TO 20 KT SE PORTION MON AND 
TUE.   

WARNINGS

ATLC...
.NONE. 

CARIBBEAN...
.SHORT TERM GALE WARNING AMZ084 AND AMZ086. 

GULF OF MEXICO...
.NONE.

$$
FORECASTER NELSON