000 AGXX40 KNHC 121944 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 300 PM EDT SUN JUL 12 2009 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... RIDGE ACROSS THE NORTHERN GULF OF MEXICO WITH A RATHER WEAK PRES PATTERN ACROSS THE AREA AND LIGHT TO MODERATE WINDS. WINDS INCREASE SOME OVER THE FAR NORTHERN GULF MON NIGHT THROUGH TUE NIGHT...AND THEN GULF WIDE INTO WED...AS LOW PRES DEVELOPS OVER THE SOUTHERN PLAINS. THE LOW MOVES NE AND THE GRADIENT WEAKENS WITH DECREASING WINDS TOWARD THE END OF THE WEEK. OTHERWISE MOSTLY MILD WINDS THROUGH THE FORECAST PERIOD. ATLANTIC... W OF 65W...HIGH PRES RIDGE ACROSS THE SW N ATLC ALONG 28N/29N WILL PERSIST THROUGH THE END OF THE WEEK. S OF 22N ELY TRADES ARE IN THE 15-20 KT RANGE OTHERWISE MOSTLY LIGHT WINDS ACROSS THE AREA. SW WINDS INCREASE TO AROUND 15 KT OVER THE FAR N PORTION OF THE AREA LATE TUE INTO THU AS AN AREA OF LOW PRES MOVES TO THE N OF THE ZONE. SEAS WILL REMAIN 2-4 FT N OF 22N AND 4-6 FT S OF 22N THROUGH THE WED. E OF 65W...HIGH PRES RIDGE ACROSS SUB TROPICAL AND TROPICAL ATLC WILL STRENGTHEN NEXT SEVERAL DAYS AND INCREASE WINDS AND SEAS ACROSS ATLC E OF 65W THROUGH THE WEEK. BROAD INVERTED SFC TROUGH MOVING ACROSS NE CARIB AND ADJACENT ATLC BRINGING BROAD SWATH OF 20 KT WINDS AND MODEST INCREASE IN SEAS. BIG CHANGE OCCURS WHEN LARGE WIND SURGE BUILDS IN BEHIND TROPICAL WAVE ALONG 57/58W ATTM...AND ACCELERATES WAVE TO 20-25 KT FORWARD MOTION...WITH ELONGATED FETCH OF E TO NE 20-25 KT WINDS AND 6-8 FT SEAS...WITH FEW POSSIBLE SMALL AREAS TO 9 FT E OF 60W BY MD WEEK. THIS TO BE ACCOMPANIED BY BROAD AREA OF SAHARAN AIR AND STABLE HAZY CONDITIONS. CARIBBEAN... WITH THE ATLC RIDGE SET IN PLACE AND LOWER PRES OVER NORTHERN S AMERICA COMBINING TO PRODUCE STRONG TRADES IN THE CARIBBEAN... MAINLY NEAR THE COAST OF COLOMBIA AND WESTERN VENEZUELA. QSCAT WINDS AND SHIP REPORTS INDICATE WINDS OF 25-30 KT FROM 11N-13N BETWEEN 73W-77W. THIS PATTERN SHOULD HOLD THROUGH THE REMAINDER OF THE WEEK. WARNINGS ATLC... .NONE. CARIBBEAN... .NONE. GULF OF MEXICO... .NONE. FORECASTER DGS. TROPICAL PREDICTION CENTER.