000 AGXX40 KNHC 050623 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 230 AM EDT FRI JUN 05 2009 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... A DEEP LAYERED TROUGH DOMINATES THE GULF WITH ITS MEAN AXIS ALONG 88W ATTM...AND SHIFTING E WITH TIME...EXPECTED TO FILL MON AND TUE E OF THE AREA. A SURFACE COLD FRONT EXTENDS FROM EXTREME NW FL SE TO NEAR 27N97W WITH TCU/CB ENHANCED ALONG THE BOUNDARY N OF 26W...AND A NARROW LINE OF LOW LEVEL CU TO THE S OF 26N. A PRE-FRONTAL TROUGH CONTINUES N OF 25N BETWEEN 85W AND 83W...AND IS PRECEDED BY A LARGE AREA OF RAIN AND EMBEDDED HEAVY SHOWERS...WITH A NEW LINE OF TSTMS DEVELOPING ALONG THE BOUNDARY NEAR 25.3N84.8W PER LIGHTNING DATA. LOW PRES IS EXPECTED TO MEANDER NEAR 31N84W THROUGH THE WEEKEND WITH THE COLD FRONT CONTINUING E THROUGH TONIGHT STALLING FROM CEDAR KEY FL TO 23N91W SAT MORNING...THEN SLOWLY DISSIPATING SAT NIGHT INTO SUN. A RIDGE WILL BUILD E TO W ALONG 27N SUN NIGHT THROUGH THE MIDDLE OF NEXT WEEK WITH SLY RETURN FLOW SETTING UP OVER THE W GULF. CARIBBEAN AND TROPICAL ATLC W OF 55W... THE ATLC RIDGE N OF THE AREA COMBINED WITH BROAD LOW PRES OVER NORTHERN S AMERICA WILL CONTINUE TO SUPPORT FRESH TO STRONG ELY TRADE WINDS...PARTICULARLY ACROSS THE S CENTRAL CARIBBEAN WITH MAX SEAS OF 12 FT ALONG NW COAST OF COLOMBIA. WINDS AND SEAS SHOULD DIMINISH SLIGHTLY OVER THE WEEKEND AS THE ATLC RIDGE TO THE N WEAKENS. UNCERTAINTY REMAINS CONCERNING POSSIBLE DEVELOPMENT...PSN AND STRENGTH...OF A LOW LEVEL TROUGH OVER THE W CARIBBEAN VICINITY NICARAGUA/HONDURAS COASTS DURING THE NEXT FEW DAYS. WILL CONTINUE THE TREND OF BROAD LOW PRESSURE OVER THE W CARIBBEAN THROUGH SUN THROUGH TUE. A TROPICAL WAVE CURRENTLY ALONG 48W MOVING W 15 KT WILL REACH ALONG 55W FRI NIGHT...ENTER THE CARIBBEAN SAT NIGHT AND REACH ALONG 75W TUE. E TO SE WINDS 15 TO 20 KT...SEAS TO 9 FT...AND A LARGE AREA OF AFRICAN DUST FOLLOW THE WAVE. SUBTROPICAL ATLC W OF 55W... AN E TO W RIDGE FROM 30N65W TO 27N80W WILL SHIFT S TO PSN 29N65W TO FL STRAITS SAT AS LOW PRES DEVELOPS OVER THE SE CONUS. SLY WINDS 15 TO 20 KT WILL SET UP N OF RIDGE INTO SAT. THE LOW WILL GRADUALLY DISSIPATE LATE MON ALLOWING THE RIDGE TO SHIFT N ALONG 27N. WARNINGS ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FORECASTER NELSON. TROPICAL PREDICTION CENTER.