000 AGXX40 KNHC 131833 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 245 PM EDT MON SEP 13 2010 MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W. GULF OF MEXICO... WEAK RIDGE DOMINATES THE GULF OF MEXICO WITH MAINLY NE TO E WINDS OF AROUND 10 KT AND SEAS GENERALLY UNDER 3 FT. A COLD FRONT HAS ENTERED THE N WATERS AND EXTENDS FROM A WEAK 1013 MB LOW PRES NEAR THE TAMPA BAY AREA TO 28N90W TO 29N95W. NE WINDS OF 10 TO 15 KT ARE NOTED BEHIND THE FRONT PER SURFACE DATA. HIGH PRES IN THE WAKE OF THE FRONT WILL MOVE FROM THE SOUTHERN U.S. PLAINS TO THE SE U.S. INCREASING WINDS TO 15 TO 20 KT OVER THE NE GULF TUE AND ACROSS MOST OF THE EASTERN GULF WED AND THU THEN DECREASE ON FRI. A LOW PRES SYSTEM LOCATED SOUTH OF JAMAICA IN THE CARIBBEAN SEA WILL MOVE INTO THE NW CARIBBEAN TUE MORNING APPROACHING THE COAST OF THE YUCATAN PENINSULA WED MORNING... AND INTO THE BAY OF CAMPECHE THU MORNING. SEAS ARE EXPECTED TO BUILD TO AROUND 8 FT IN THE EASTERN GULF BY THU AS THE PRES GRADIENT BETWEEN THE BROAD AREA OF LOW PRES OVER THE BAY OF CAMPECHE AND THE SURFACE HIGH OVER THE SE U.S. TIGHTENS. SW N ATLC... A FRONTAL TROUGH IS OVER THE NW CORNER OF THE FORECAST AREA AND WILL EXTEND FROM 31N73W TO 27N78W THIS AFTERNOON...FROM 31N72W TO 27N75W TONIGHT AND FROM 31N69W TO 27N72W TUE MORNING AND DISSIPATE WED. NE WINDS OF 10 TO 15 KT ARE BLOWING BEHIND THE FRONT. A BELT OF ELY WINDS IN THE 10 TO 15 KT RANGE WILL PERSIST S OF 25N WITH SEAS OF 4 TO 5 FT E OF THE BAHAMAS. WINDS AND SEAS WILL GRADUALLY INCREASE OVER THE E PORTION OF THE AREA WED THROUGH FRI AS HURRICANE IGOR PASS TO THE E OF THE AREA... HOWEVER TROPICAL STORM FORCE WINDS SHOULD REMAIN E OF THE FORECAST REGION. THE FORECAST SHOWS INCREASING WINDS IN THE 20 TO 30 KT RANGE AND BUILDING SEAS OF 12 TO 18 FT IN SE SWELL PARTICULARLY THU AND FRI. CARIBBEAN SEA AND TROPICAL N ATLC... STRONG HURRICANE IGOR E OF THE AREA IS FORECAST TO APPROACH THE NE TROPICAL N ATLC WATERS LATE TUE INTO WED AS A MAJOR HURRICANE. SO A HURRICANE WARNING WILL BE HEADLINED N OF 18N E OF 60W TUE NIGHT...AND HURRICANE CONDITIONS WILL CONTINUE THROUGH WED THEN AS THE HURRICANE MOVES TO THE N OF THE AREA TROPICAL STORM FORCE WINDS ARE EXPECTED TO LINGER N OF 20N E OF 60W INTO THU...WITH DECREASING WINDS AND SEAS FRI. OTHERWISE A BROAD AREA OF LOW PRES IN THE CENTRAL CARIBBEAN LOCATED NEAR 16N77W WILL MOVE TO NEAR 17N82W TUE MORNING AND NEAR 18.5N86W WED MORNING. THE LOW COULD POSSIBLY DEVELOP INTO A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. MARINE GUIDANCE IS ALREADY SHOWING SOME INCREASE IN WINDS AND SEAS OVER THE NW CARIBBEAN IN ABOUT 48 HOURS WHEN THE LOW PRES WILL BE APPROACHING THE YUCATAN PENINSULA. WARNINGS... SW N ATLC... .NONE. CARIBBEAN... .NONE. TROPICAL N ATLC... .HURRICANE WARNING N OF 18N E OF 60W TUE NIGHT AND WED. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER GR