000 AGXX40 KNHC 110017 AAA MIMATS MARINE WEATHER DISCUSSION...UPDATED NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 815 PM EDT TUE MAR 10 2009 ...UPDATED SW N ATLC AND TROPICAL N ATLC SECTIONS... MARINE WEATHER DISCUSSION FOR GULF OF MEXICO... CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... CURRENT BUOY OBSERVATIONS ACROSS THE GULF FROM THIS AFTERNOON ARE SHOWING SE WINDS OF 10-15 KT OVER THE MIDDLE AND EASTERN GULF...WITH STRONGER SE WINDS OF 20 KT OVER THE SOUTHERN WATERS OF THE WESTERN AND NW GULF DUE TO RETURN FLOW PATTERN SUSTAINED BY A RIDGE OF HIGH PRES THAT EXETNDS FROM THE WESTERN ATLC ACROSS THE NORTHERN GULF COAST. A QUIKSCAT PASS FROM JUST PASSED 12 UTC THIS MORNING ALSO SHOWED MOSTLY SE 20 KT IN THE WESTERN GULF WITH A FEW WIND BARBS OF 25 KT. BUOY 42002 IS SHOWING SEAS UP TO 7 FT DURING THE EARLY AFTERNOON. SEAS ARE MUCH LESS IN THE EASTERN GULF WITH MAXIMUM HEIGHTS OF 2 FT. THESE CONDITIONS SHOULD CHANGE LITTLE THROUGH THU OVER MUCH OF THE GULF AS THEN THE RIDGE SLOWLY MOVES E AS A COLD FRONT MAKES ITS WAY INTO THE NW GULF WED NIGHT INTO THU MORNING PER GFS/NAM 12 UTC MODEL SOLNS. THE UPPER LEVELS AS DEPICTED IN THE GLOBAL MODELS SUGGESTS THAT THE SUPPORTING UPPER TROUGH WILL SWING THROUGH NE TEXAS AND THE MIDDLE PORTION OF THE COUNTRY ON THU AS IT DAMPENS OUT. THIS WILL MEAN THAT SURFACE COLD FRONT WILL SLOW DOWN AND BECOME STATIONARY OVER THE WESTERN GULF THU THROUGH FRI BEFORE MOVING E AGAIN AS A WEAK COLD FRONT ON SAT AS ANOTHER PIECE OF UPPER ENERGY PASSES OVER EASTERN TEXAS. THE FRONT THEN WASHES OUT IN THE VICINITY OF SE LOUISIANA TO NEAR 25N95W ON SUN AS REAMING UPPER SUPPORT LIFTS WELL TO THE N...AND HIGH PRES BUILDS ALOFT. EXPECT WINDS TO SHIFT TO N-NE 15-20 KT BEHIND THE FRONT THU THROUGH FRI BEFORE WEAKENING TO N 5-10 KT AND NE-E 10 KT SUN. GENERALLY LIGHT WINDS WITH LOW SEAS WILL EXIST OVER THE GULF LATE SAT INTO SUN. CARIBBEAN SEA... AS THE PRES GRADIENT CONTINUES SURFACE HIGH PRES CONTINUES TO WEAKEN ACROSS THE SEA IN RESPONSE TO WEAKENING ATLC HIGH PRES TRADES WILL WEAKEN THROUGH SUN. WINDS MAY CONTINUE TO BE NE-E 20-25 KT NEAR THE COLOMBIAN COAST THROUGH SAT...THEN 20 KT SUN. EXPECT SEAS TO ALSO LOWER OVER MUCH OF THE AREA...EXCEPT REMAINING UP TO 7 FT NEAR COLOMBIAN COAST BY SUN. SW N ATLANTIC AND TROPICAL N ATLC...UPDATED THE TAIL END OF A CENTRAL ATLC COLD FRONT ENTERS THE EASTERN PORTION OF THE AREA THROUGH 29N65W AND EXTENDS NW TO 29N70W TO 31N76W. THIS FRONT IS QUICKLY MOVING SE...AND WILL SWEEP THROUGH THE REMAINDER OF THE E AND SE PORTIONS OF THE SW N ATLC OVERNIGHT INTO WED MORNING...THEN THROUGH THE NORTHERN AND CENTRAL SECTIONS OF THE TROPICAL N ATLC ZONE THU AND THU NIGHT AND WEAKEN JUST E OF THIS ZONE FRI. THIS COLD FRONT IS CONNECTED TO A GALE CENTER NE OF THE AREA...THAT IS FORECAST TO DIVE SOUTHEASTWARD OVER THE NEXT 24 HOURS PUSHING THIS COLD FRONT ACROSS THESE TWO ZONES. ALTHOUGH THE STRONG GALE FORCE WINDS WILL REMAIN ENE OF THE AREA...GLOBAL MODELS CONTINUE TO BE IN PRETTY GOOD AGREEMENT THAT ANOTHER SURGE OF N-NE WINDS IN THE 20-25 KT RANGE AND LARGE SEAS...POSSIBLY IN THE RANGE OF 10-14 FT PER LATEST NOAA WAVEWATCH MODEL GUIDANCE...WILL INVADE THE NORTHERN TROPICAL N ATLC ZONE WED THROUGH FRI. SEAS THEN SUBSIDE TO 8-9 FT ACROSS THIS ZONE LATE SAT INTO SUN AS HIGH PRES SETTLES IN OVER THE FAR EASTERN PORTION OF THE SW N ATLC ZONE NEAR 28N66W WITH A RIDGE WSW TO S FL. WINDS AND SEAS WILL BE ON THE LIGHT SIDE OVER THE SW N ATLC BY SUN...EXCEPT FOR THE FAR SE PORTION WHERE A TIGHTER PRES GRADIENT WILL ACCOUNT FOR A SMALL SWATH OF NE-E 15-20 KT WINDS WITH SEAS 6-9 FT IN AN E SWELL. ATLANTIC... NONE. CARIBBEAN... NONE. GULF OF MEXICO... NONE. FORECASTER AGUIRRE. TROPICAL PREDICTION CENTER.