000 AGXX40 KNHC 090520 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 120 AM EDT THU JUL 09 2009 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. UPPER LEVELS... TROUGH IS OVER THE AREA WEST OF 78W WITH A WEAK RIDGE EAST OF 78W. THE TROUGH WILL WEAKEN FROM THE WEST AND BY SATURDAY BE A WEAK TROUGH ALONG THE EAST UNITED STATES COAST ACROSS FLORIDA AND THE EAST GULF OF MEXICO TO THE YUCATAN PENINSULA. TROUGH WILL MOVE TO THE WEST GULF MONDAY WITH A VERY WEAK RIDGE ELSEWHERE. SURFACE... WEAK RIDGE ALONG 26N WILL REMAIN WEAK AND DRIFT A LITTLE NORTH TO 28N SUNDAY AND MONDAY. TRADES IN CARIBBEAN NEAR TO SLIGHTLY ABOVE NORMAL AND TRADES IN ATLANTIC LESS THAN NORMAL. OTHERWISE WINDS WILL BE LIGHT OVER THE AREA. WARNINGS ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FORECASTER LL. TROPICAL PREDICTION CENTER.