000
AGXX40 KNHC 111828
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
245 PM EDT TUE SEP 11 2012

MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO...CARIBBEAN SEA 
AND TROPICAL N ATLC...AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W.

GULF OF MEXICO...
STATIONARY FRONTAL BOUNDARY EXTENDS FROM SOUTH FLORIDA TO A WEAK 
1013 MB LOW PRES LOCATED NEAR 27N94W THEN SW TO NEAR 24N97W. THE 
FRONT WILL LINGER ACROSS THE GULF WATERS THIS AFTERNOON THEN 
DRIFT NW AND INLAND ACROSS TEXAS LATE TONIGHT AND GRADUALLY 
DISSIPATE. AS HIGH PRESSURE STRENGTHENS OVER THE MID ATLANTIC 
STATES...EXPECT INCREASING WINDS AND BUILDING SEAS OVER THE NE 
CORNER OF THE GULF. MARINE GUIDANCE INDICATES WINDS IN THE 15 TO 
20 KT RANGE WITH SEAS OF 4 TO 6 FT. WINDS ARE ALSO EXPECTED TO 
INCREASE TO 20 KT NEAR THE COAST OF YUCATAN AT NIGHT DUE TO 
LOCAL EFFECTS. CURRENTLY...WINDS AND SEAS WILL BE HIGHER NEAR 
SCATTERED SHOWERS AND TSTMS ALONG THE FRONTAL BOUNDARY MAINLY N 
OF 26N W OF 90W. 

SOUTHWEST NORTH ATLC S OF 31N W OF 55W...
A COLD FRONT STRETCHES FROM 30N62W TO SOUTH FLORIDA NEAR 26N80W. 
THE FRONT WILL MOVE SLOWLY SE E OF 70W AND WILL BECOME NEARLY 
STATIONARY ALONG 24N OR 25N W OF 70W...THEN WILL GRADUALLY 
DISSIPATE THROUGH THU. HIGH PRES WILL BUILD IN ACROSS THE AREA 
BEHIND THE FRONT AND WILL PRODUCE FRESH NE TO E WINDS MAINLY E 
OF 70W WED AND THU WITH BUILDING SEAS TO AROUND 9 FT. A WEAK 
RIDGE DOMINATES THE SOUTH WATERS PRODUCING MAINLY LIGHT WINDS. 
T.D. FOURTEEN HAS FORMED IN THE CENTRAL TROPICAL ATLC. THIS 
SYSTEM WILL MOVE IN A GENERAL NW THEN N TRACK AND WELL E OF THE 
FORECAST AREA DURING THE REMAINDER OF THE WORK WEEK. SWELLS 
ASSOCIATED WITH THIS TROPICAL CYCLONE WILL AFFECT ZONE AMZ127 
WED NIGHT TO FRI NIGHT. NOAA WAVE WATCH III GUIDANCE INDICATES 
THAT SEAS WILL BUILD TO 10 OR 12 FT. EXPECT ALSO BUILDING SEAS E 
OF 70W FRI NIGHT AND SAT.    

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
HIGH PRES N OF THE AREA WILL MAINTAIN MODERATE TO FRESH TRADE 
WINDS ACROSS THE S CENTRAL CARIBBEAN WATERS...AND LIGHT TO 
MODERATE TRADE WINDS ELSEWHERE THROUGH THU. THE BROAD LOW PRES 
LOCATED ACROSS THE CENTRAL ATLC WAS UPGRADED TO TROPICAL 
DEPRESSION FOURTEEN AT 11/1500 UTC. THIS SYSTEM IS FORECAST TO 
MOVE NW THROUGH THU AND WILL REMAIN JUST NE OF THE AREA... 
ALTHOUGH ASSOCIATED SWELLS WILL IMPACT THE TROPICAL N ATLC THU 
THROUGH SAT. BASED ON THE NHC INTENSITY FORECAST...THE 
DEPRESSION COULD BECOME A TROPICAL STORM LATER TODAY OR TONIGHT 
AND IS EXPECTED TO INTENSIFY INTO A HURRICANE IN ABOUT 72 HOURS. 
PRES GRADIENT BETWEEN T.D. FOURTEEN AND HIGH PRES TO THE N IS 
RESULTING IN A LARGE AREA OF 20 TO 25 KT WINDS ACROSS THE 
CENTRAL ATLC PARTICULARLY FROM 16N TO 24N BETWEEN 35W AND 46W. 
SCATTEROMETER DATA CONFIRMED THE PRESENCE OF THESE WIND SPEEDS.

NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE

GULF OF MEXICO...
.NONE.

CARIBBEAN SEA AND TROPICAL N ATLC...
.NONE.

SW N ATLANTIC...
.NONE.
  
FOR ADDITIONAL INFORMATION PLEASE VISIT
WWW.HURRICANES.GOV/MARINE

$$
FORECASTER GR