000 AGXX40 KNHC 260508 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 108 AM EDT THU JUN 26 2008 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. UPPER LEVELS... WEAK MIDDLE LEVEL TROUGH OVER THE WESTERN GULF OF MEXICO THROUGH MONDAY. ELSEWHERE MIDDLE LEVEL RIDGE WITH AXIS ALONG 27N THROUGH MONDAY. MODERATE UPPER TROUGH OVER THE GULF OF MEXICO AND WEAK UPPER TROUGH OVER THE ATLANTIC FROM 35N60W TO ACROSS HISPANIOLA TO THE SOUTHERN CARIBBEAN NEAR PANAMA. GULF OF MEXICO TROUGH WILL WEAKEN IN PLACE THROUGH MONDAY. ATLANTIC TROUGH WILL ALSO REMAIN IN PLACE AND CHANGE LITTLE THROUGH SATURDAY THEN STRENGTHEN SOME SUNDAY AND MONDAY. SURFACE... RIDGE ALONG 30N ACROSS THE AREA WILL DRIFT A LITTLE SOUTH TO 28N SATURDAY. THE RIDGE WILL WEAKEN ACROSS THE GULF OF MEXICO SUNDAY AND MONDAY WHILE CHANGING LITTLE IN THE ATLANTIC. TRADE WINDS IN THE CARIBBEAN MOSTLY SOUTH OF 20N AND THE ATLANTIC MOSTLY SOUTH OF 24N WILL CONTINUE TO BE IN THE 20 TO 25 KNOT RANGE. SOUTHERLY RETURN FLOW IN THE WESTERN GULF OF MEXICO DEVELOP FRIDAY NIGHT AND SATURDAY IN RESPONSE TO A TROUGH MOVING OVER TEXAS. SUNDAY AND MONDAY THE TROUGH WILL WEAKEN AND COUPLED WITH THE RIDGE WEAKENING THE SOUTHERLY FLOW WILL DIMINISH. ELSEWHERE WINDS WILL BE MOSTLY LESS THAN 15 KNOTS. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. .FORECASTER LL. TROPICAL PREDICTION CENTER.