000
AGXX40 KNHC 211749
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT TUE JUN 21 2011

GULF OF MEXICO...
HIGH PRES RIDGE WILL SHIFT N OF THE AREA TONIGHT. SE TO S RETURN 
FLOW WILL CONTINUE OVER THE FAR NW GULF WILL DECREASE BELOW 20 
KT THU. ATLC RIDGE STRENGTHENS SOME OVER THE WEEKEND...THIS 
COMBINED WITH LOWER PRES OVER MEXICO INCREASES THE ELY WINDS TO 
20-25 KT ACROSS THE SW GULF SAT AND SUN.

SW N ATLC...
HIGH PRES RIDGE WILL CONTINUE ALONG 27N FOR MUCH OF THE FORECAST 
PERIOD. SW WINDS HAVE INCREASED TO 15-20 KT OVER THE NE PORTION 
OF THE AREA DUE TO A TIGHTER PRESSURE GRADIENT BETWEEN THE RIDGE 
AND COLD FRONT N OF THE AREA. THE FRONT MOVES FURTHER TO THE NE 
AND WINDS DECREASE WED. OTHERWISE LIGHT TO MODERATE WINDS WILL 
CONTINUE OVER MUCH OF THE AREA THROUGH SAT. THE ONLY EXCEPTION 
WILL BE OVER THE FAR SR PART OF THE AREA WHERE WINDS WILL 
INCREASE TO 15-20 KT OVER THE WEEKEND AS A TROPICAL WAVE MOVES 
INTO THE CARIBBEAN SEA TIGHTENING THE PRES GRADIENT. 

CARIBBEAN AND TROPICAL N ATLC W OF 55W...
TROPICAL WAVE THAT WAS MOVING THROUGH THE EASTERN CARIBBEAN THE 
PAST COUPLE OF DAYS IS NOW ANALYZED OVER VENZUELA AND IS NO 
LONGER A FACTOR IN THE FORECAST. TROPICAL WAVE E OF THE AREA 
WILL MOVE INTO THE TROPICAL LATE N ATLC WED. THIS WAVE WILL MOVE 
INTO THE E CARIBBEAN THU AND THE CENTRAL CARIBBEAN FRI WHERE ITS 
WESTWARD PROGRESS WILL DECREASE AS IT STARTS TO INTERACT WITH 
THE MONSOON TROUGH OVER THE SW CARIBBEAN. ANOTHER TROPICAL WAVE 
WILL MOVE INTO THE TROPICAL N ATLC SAT AND INTO THE EASTERN 
CARIBBEAN SUN.

WARNINGS...

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS