000 AGXX40 KNHC 210527 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 127 AM EDT SAT MAR 21 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. UPPER LEVELS... LONGWAVE TROUGH OVER THE AREA EAST OF 90W WITH AN AXIS NEAR 72W. THE TROUGH WILL MOVE SLOWLY EAST TO EAST OF 75W WITH AN AXIS NEAR 60W BY WEDNESDAY. WEAK RIDGE WILL BE WEST OF THE TROUGH. SURFACE... FRONTAL TROUGH FROM NEAR BERMUDA TO HISPANIOLA WILL MOVE SLOW EAST PASSING EAST OF 60W MONDAY AND THEN WEAKENING OVER THE TROPICAL ATLANTIC AREA TUESDAY. TROUGH DEVELOP OVER TEXAS SUNDAY AND MONDAY THEN WEAKEN SOME TUESDAY AND WEDNESDAY. WEAK FRONTAL TROUGH OVER THE NORTHWEST GULF LATE TUESDAY WILL DISSIPATE WEDNESDAY. ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER LL. TROPICAL PREDICTION CENTER.