000 AGXX40 KNHC 250612 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 215 AM EDT SAT JUL 25 2009 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... GENERALLY TRANQUIL MARINE CONDITIONS PREVAIL ACROSS MUCH OF THE GULF REGION TODAY THANKS TO THE INFLUENCE OF A SURFACE RIDGE WITH A WEAK 1016 MB HIGH LOCATED NEAR 28N85W. THIS FEATURE IS PRODUCING MAINLY LIGHT WINDS N OF 23N. FARTHER TO THE SOUTH...A TROPICAL WAVE PRESENTLY OVER THE YUCATAN PENINSULA ALONG 89W WILL TRAVERSE THE BAY OF CAMPECHE TODAY. SCATTERED SHOWERS AND TSTMS ARE NOTED AHEAD OF THE WAVE AXIS. THIS ACTIVITY IS BEEN ENHANCED BY A DIFFLUENT PATTERN ALOFT ASSOCIATED WITH AN UPPER- LEVEL RIDGE. A FEW SHOWERS AND ISOLATED TSTMS ARE NOTED OVER THE NORTH GULF WATERS N OF 28N AHEAD OF A STATIONARY FRONT LYING OVER THE N GULF STATES. THIS FRONTAL BOUNDARY IS EXPECTED TO BECOME ILL DEFINED LATER TODAY. HIGHEST WINDS AND SEAS ARE OCCURRING S OF 23N WITH E TO SE FLOW 10 TO 15 KT AND SEAS 2-3 FT...AND WITH TYPICAL EVENING NELY FLOW ALONG THE NW AND W COASTS OF THE YUCATAN AROUND 15-20 KT. THE WEAK RIDGE ACROSS THE N GULF WILL BUILD ALONG 27N TO 28N THROUGH TUE. SE FLOW WILL INCREASE ACROSS THE W GULF EARLY NEXT WEEK. CARIBBEAN... A TROPICAL WAVE IS OVER THE CENTRAL CARIBBEAN ALONG 77W MOVING RAPIDLY WWD NEAR 20-25 KT. THIS WAVE IS ACCOMPANIED BY FRESH TO STRONG TRADEWINDS AND SOME SHOWER ACTIVITY...AND WILL PASS THROUGH THE WESTERN CARIBBEAN TODAY AND TONIGHT REACHING THE YUCATAN PENINSULA SUN MORNING. A SECOND TROPICAL WAVE CURRENTLY ALONG 39W/40W WILL MOVE INTO THE TROPICAL N ATLC ZONE MON ENTERING THE EASTERN CARIBBEAN TUE...AND PASS INTO THE CENTRAL CARIBBEAN WED. THE STRONGEST WINDS AND HIGHEST SEAS CAN BE FOUND ALONG THE COAST OF COLOMBIA. NOAA WAVE WATCH III GUIDANCE INDICATES THAT WINDS WILL INCREASE TO 30 KT AND SEAS WILL BUILD TO 13 OR 14 FT THROUGH THE WEEKEND. A BELT OF MODERATE TO STRONG WINDS WILL COVER A LARGE AREA FROM 50W TO 80W LATE MON INTO TUE AS HIGH PRES OVER THE CENTRAL ATLC MOVES WWD AND STRENGTHENS. THESE WINDS WILL ALSO AFFECT THE SOUTH PORTION OF THE SW ATLC JUST N OF PUERTO RICO AND HISPANIOLA. ATLANTIC S OF 31N W OF 55W... SURFACE RIDGING FROM A 1028 MB HIGH CENTERED OVER THE AZORES DOMINATES THE FORECAST AREA. THE RIDGE AXIS EXTENDS FROM 30N65W TO SE FLORIDA MAKING SURFACE WINDS PREDOMINATELY E-SE 10-15 KT WITH SEAS IN THE 3-5 FT RANGE. NO MAJOR CHANGE IS EXPECTED IN THE WEATHER PATTERN DURING THE WEEKEND WITH AN INCREASE IN WINDS AND SEAS OVER THE SOUTH PORTION EARLY NEXT WEEK. EXPECT ELY WINDS OF 20 TO 25 KT AND SEAS TO 8 FT. WARNINGS ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. $$ FORECASTER GR