000 AGXX40 KNHC 090505 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 130 AM EDT SUN APR 09 2006 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. A STRONG SHORTWAVE TROUGH IS DIGGING SE TONIGHT INTO THE NE GULF WITH A STRONG DIFFLUENT PATTERN AHEAD OF THE TROUGH. AN OPEN UPPER RIDGE EXTENDS FROM THE NE CARIB TO 40N50W AND A LARGE UPPER TROUGH COVERS THE ERN ATLC. ON THE SURFACE A COLD FRONT WAS OVER THE E CENTRAL GULF MOVING EWD. A LARGE HIGH WAS CENTERED NEAR 35N58W AND COVERS THE SW ATLC. FOR DAY 1 THE STRONG SHORTWAVE WILL TURN MORE EWD AS IT STARTS TO RIDE OVER THE CENTRAL ATLC RIDGE. THE COLD FRONT WILL MOVE TO 31N73W BACK ACROS CENTRAL FL WITH NE WINDS 20 KT BEHIND THE FRONT. THE ATLC RIDGE IS MAINLY E OF 70W DAY 1 AND CARIB WINDS MOSTLY LIGHT TO MODERATE. ENERGY SHEARS OFF DAY 2 MOVING NEWD OVER THE MID OCEAN RIDGE WHILE A WEAKER UPPER TROUGH HANGS BACK OVER THE BAHAMAS AND NW CARIB. UPPER RIDGING BUILDS OVER THE WRN GULF DAY 2 WHILE THE E ATLC TROUGH REMAINS E OF 50W. ON THE SURFACE THE COLD FRONT MOVES TO 31N70W BACK ACROSS THE NW BAHAMAS AND STALLS NEAR THE YUCATAN CHANNEL. WINDS REMAIN GUSTY NE 20 TO 25 KT OVER ATLC WATERS N OF THE FRONT AND OVER THE ERN GULF E OF 90W. REMAINDER OF THE AREA WINDS LIGHT TO MODERATE. OUTLOOK PERIOD... THE UPPER TROUGH OVER THE BAHAMAS APPEARS TO CUT IT SELF OFF DAY 3 FROM THE NRN STREAM OF WESTERLIES. THE RIDGE OVER THE WRN GULF EXTENDS NE OVER THE NE US..AND THE LARGE UPPER TROUGH OVER THE ERN ATLC REMAINS STATIONARY. THE COLD FRONT BECOMES STATIONARY DAY 3 OVER THE CENTRAL BAHAMAS. GUSTY E AND NE WINDS WILL CONTINUE NW OF THE FRONT AND TO A LESSER EXTENT OVER THE ERN GULF. CARIB WINDS MOSTLY MODERATE S OF 17N AND E OF 75W. DAY 4 FINDS THE UPPER TROUGH OVER THE BAHAMAS CLOSING OFF AND STATIONARY. THE STRONG RIDGE HOLDS OVER THE WRN GULF. THE NRN WESTERLIES BEGIN TO DROP SE OVER MID OCEAN AND WORK ON PUSHING THE ERN ATLC CLOSED LOW EWD. SURFACE TROUGHING REMAINS OVER THE WRN BAHAMAS DAY 4 BUT WEAKER. ATLC WINDS N OF 28N REMAIN 20 KT AND ERN GULF WINDS NE TO 20 KT. ATLC HIGH 1024 MB CENTERED NEAR 31N50W RE-ESTABLISHES ELY TRADES S OF 24N E OF 70W WITH MOSTLY MODERATE SPEEDS. THE BIG CONVEYOR BELT OF WESTERLIES REALLY CRANKS UP DAY 5 FROM OVER THE N CENTRAL US ESE ACROSS MID OCEAN AND INTO THE ERN ATLC EFFECTIVELY PUSHING THE LARGE CLOSED UPPER LOW EWD. THE OLD UPPER TROUGH OVER THE BAHAMAS BEGINS TO MOVE EWD SLOWLY WHILE THE CLOSED STRONG UPPER RIDGE OVER THE WRN GULF SHIFTS WWD OVER MEXICO. ON THE SURFACE WEAK TROUGHING CONTINUES OVER THE WRN BAHAMAS BUT WINDS DECREASE TO 10 KT. WEAK HIGH OVER THE GULF WILL INSURE LIGHT WINDS THERE. CARIB WINDS MOSTLY LIGHT. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER RRG