000 AGXX40 KNHC 280728 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 230 AM EST TUE NOV 28 2006 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... 1024 MB SURFACE HIGH PRES OFF THE CAROLINA COAST IS MAINTAINING MODERATE ELY WINDS ACROSS THE GULF. UPPER RIDGE IS IN PLACE...WITH A FAIRLY DRY AIRMASS OVER THE REGION. WATER VAPOR IMAGERY SHOWS AN UPPER TROUGH DIGGING INTO THE SOUTHERN ROCKIES...WITH A STRONGER REINFORCING SHORT WAVE PUSHING INTO THE INTERMOUNTAIN WEST. THE UPPER RIDGE WILL SHIFT E INTO THE WESTERN ATLC BY WED AS THE UPPER TROUGH COME INTO PHASE OVER THE SOUTHERN ROCKIES. HOWEVER...THE TROUGH WILL LIFT OUT THROUGH THE CENTRAL PLAINS THU/FRI...LEAVING THE UPPER RIDGE AXIS IN PLACE ACROSS THE GULF. A SURFACE FRONT WILL MOVE INTO THE NW GULF WATERS LATE THU...THEN SLOW AND BECOME QUASI-STATIONARY FROM THE FLORIDA BIG BEND AREA TO THE BAY OF CAMPECHE BY EARLY SAT. E TO SE FLOW WILL INCREASE SLIGHTLY AHEAD OF THE FRONT THROUGH MIDWEEK... FOLLOWED BY NW FLOW TO GALE FORCE BEHIND THE FRONT OVER THE WESTERN GULF THU INTO FRI. BLOCKING RIDGE WILL KEEP EASTERN GULF WINDS AND SEAS LOWER. CARIBBEAN AND TROP N ATLC... MORNING OBSERVATIONS AND SATELLITE IMAGERY INDICATE THE STATIONARY FRONT SW OF HAITI HAS DISSIPATED. A WEAK TROUGH N OF PANAMA IS THE REMNANT OF A WEAK CIRCULATION IN THE AREA OVER THE WEEKEND. FRESH TO STRONG NE WINDS PREVAIL OVER THE NW CARIBBEAN...SUPPORTED BY THE TROUGH TO THE S AND HIGH PRES TO THE N. OVER THE NEXT SEVERAL DAYS HIGH PRES N OF THE AREA WILL BUILD AHEAD OF AN UPPER TROUGH DIGGING THROUGH THE ROCKIES. THIS WILL RESULT IN INCREASED WINDS AND SEAS ACROSS MOST OF THE CENTRAL AND WESTERN CARIBBEAN WATERS BY MIDWEEK... PERSISTING INTO THE WEEKEND. GENERALLY LIGHT TO MODERATE WINDS ALONG WITH MODERATE TO LARGE ELY SWELL WILL PERSIST OVER THE TROP N ATLC FOR ANOTHER DAY. HIGH PRES BUILDING TO THE N WILL ALLOW NE FLOW TO INCREASE OVER WATERS E OF PUERTO RICO WED THROUGH SAT. SW N ATLC... FRONT EXTENDING FROM 24N55W TO NEAR PUERTO RICO WILL SLOWLY WEAKEN. SHIP OBSERVATIONS SHOW FRESH NE FLOW ACROSS THE AREA...WITH LARGE NE SWELLS GENERATED NW OF THE FRONT. HIGH PRES WILL SHIFT E AHEAD OF THE APPROACHING UPPER TROUGH INTO THE WATERS N OF THE FORECAST AREA. THIS WILL ALLOW WINDS AND SEAS TO INCREASE S OF 28N PERSISTING INTO NEXT WEEK. ELY SWELL WILL PROPAGATE INTO THE BAHAMIAN WATERS AS WELL. WARNINGS... ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER MUNDELL