000 AGXX40 KNHC 111837 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 245 PM EDT SAT SEP 11 2010 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... A WEAK RIDGE DOMINATES THE GULF OF MEXICO WITH MAINLY E TO SE WINDS OF AROUND 10 KT AND SEAS UNDER 3 FT. A WINDSAT PASS FROM THIS MORNING CAPTURED A FEW WIND BARBS OF 15 KT OVER THE NW AND SW PORTIONS OF THE GULF REGION. A SURFACE TROUGH WILL MOVE W ACROSS THE BAY OF CAMPECHE SUN THROUGH WED WITH BUILDING SEAS TO ROUND 4 FT. A COLD FRONT WILL CLIP THE FAR N GULF LATE SUN INTO MON WITH LITTLE CHANGE IN WINDS AND SEAS. SW N ATLC... A FRONTAL SYSTEM IS ALREADY BRUSHING THE FAR N WATERS. SW WINDS OF 15 KT ARE NOTED PER AN ASCAT PASS N OF 29N AND AHEAD OF THE FRONT WHICH WILL EXTEND FROM 31N65 TO 27N75W TONIGHT AND FROM 29N65W TO 27N76W SUN MORNING...THEN FROM 28N65W TO 26N74W SUN NIGHT AND DISSIPATE MON. A BELT OF ELY WINDS IN THE 10 TO 15 KT RANGE WILL PREVAIL S OF 25N WITH SEAS OF 4 TO 5 FT E OF THE BAHAMAS. WINDS AND SEAS ARE FORECAST TO GRADUALLY INCREASE OVER SE PORTION WED AHEAD OF TROPICAL CYCLONE IGOR...EXPECTED TO BE A MAJOR HURRICANE. CARIBBEAN SEA AND TROPICAL N ATLC... THE REMNANT TROUGH OF GASTON IS FROM 18N82W TO THE SW CARIBBEAN NEAR 10N79W AND WILL MOVE ACROSS THE W CARIBBEAN INTO CENTRAL AMERICA TONIGHT. MAINLY LIGHT WINDS ARE SEEN EITHER SIDE OF THE TROUGH AXIS. A LOW PRESSURE SYSTEM CURRENTLY LOCATED NEAR 14N64W WILL DRIFT WNW TO NEAR 15N68.5W SUN MORNING AND NEAR 16N73W MON MORNING. ENVIRONMENTAL CONDITIONS APPEAR FAVORABLE FOR DEVELOPMENT...AND A TROPICAL DEPRESSION COULD FORM AS THE SYSTEM MOVES WESTWARD INTO THE CENTRAL AND WESTERN CARIBBEAN SEA. THERE IS A HIGH CHANCE OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. SHOWERS AND THUNDERSTORMS HAVE CHANGED LITTLE IN ASSOCIATION WITH THIS AREA OF LOW PRESSURE AND ARE CONCENTRATED TO THE N REACHING THE COASTAL WATERS OF PUERTO RICO. TROPICAL STORM IGOR WELL E OF THE AREA IS FORECAST TO STRENGTHEN TO A HURRICANE TONIGHT AND APPROACH THE FAR E TROPICAL N ATLC WATERS LATE TUE INTO WED. ON THIS DAY... HURRICANE CONDITIONS ARE EXPECTED OVER THE NE PORTION OF THE AREA N OF 17N AND E OF 59W. WARNINGS... SW N ATLC... .NONE. CARIBBEAN... .NONE. TROPICAL N ATLC... .HURRICANE CONDITIONS EXPECTED N OF 17N E OF 59W WED. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER GR