000
AGXX40 KNHC 140626
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
230 AM EDT FRI SEP 14 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...
HIGH PRES CENTER OVER THE SOUTHEASTERN UNITED STATES IS 
RESULTING IN ANTICYCLONIC FLOW ACROSS THE GULF WATERS. LATEST 
SCATTEROMETER...SHIP...AND BUOY OBSERVATIONS DEPICT LIGHT TO 
MODERATE WINDS WITH SEAS 2 TO 4 FT PREVAIL ACROSS THE MAJORITY 
OF THE GULF WATERS. LATEST MODEL GUIDANCE IN AGREEMENT THAT AN 
UPPER LEVEL TROUGH APPROACHING FROM THE WEST WILL HELP INDUCE A 
SURFACE TROUGH...WITH A SURFACE LOW OVER THE WESTERN GULF WATERS 
BY SUN NIGHT. THE SURFACE LOW IS EXPECTED TO TRACK INTO THE 
SOUTHEASTERN UNITED STATES ON MONDAY...THEN CONTINUING TO SHIFT 
INTO THE NORTHEAST UNITED STATES ON TUE. THIS SURFACE LOW 
PRESSURE CENTER WILL HELP FOR A COLD FRONT TO MOVE INTO THE NW 
GULF WATERS ON TUE. 

SOUTHWEST NORTH ATLC S OF 31N W OF 55W...
A SURFACE TROUGH EXTENDS FROM 31N65W TO THE SW BAHAMAS. RECENT 
SCATTEROMETER...SHIP...AND BUOY DATA INDICATE LIGHT TO MODERATE 
WINDS PREVAIL ACROSS MUCH OF THE AREA. SEAS ARE GENERALLY 4 TO 6 
FT OVER THE WESTERN HALF OF THE FORECAST AREA...EXCEPT 3 FT OR 
LESS W OF THE BAHAMAS...AND 5 TO 8 FT OVER THE EASTERN PART OF 
THE AREA. SWELLS FROM TROPICAL STORM NADINE ARE MOVING ACROSS 
THE AREA E OF 60W...WITH COMBINED SEAS TO 13 FT NOTED OVER THIS 
AREA. TROPICAL STORM NADINE IS CURRENTLY FORECAST TO REACH 
HURRICANE INTENSITY SATURDAY MORNING...BUT IS EXPECTED TO REMAIN 
E OF THE SW N ATLC OFFSHORE WATER ZONES. SWELLS ASSOCIATED WITH 
NADINE ARE EXPECTED TO MOVE THROUGH THE EASTERN PORTION OF THE 
OFFSHORE WATER ZONES THROUGH THE WEEKEND. THE SURFACE TROUGH IS 
FORECAST TO DISSIPATE BY SUN NIGHT WITH HIGH PRESSURE BUILDING 
IN ITS WAKE. 

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
LATEST SCATTEROMETER...SHIP...AND BUOY OBSERVATIONS DEPICT LIGHT 
TO MODERATE TRADE WINDS PREVAIL ACROSS THE CARIBBEAN WATERS AND 
THE TROPICAL N ATLC WATERS. TROPICAL STORM NADINE IS CURRENTLY N 
OF THE TROPICAL N ATLC ZONE...HOWEVER ASSOCIATED SWELLS ARE 
AFFECTING THE FAR N PART OF THE TROPICAL N ATLC WATERS. THIS 
SWELL WILL MOVE THROUGH THIS AREA THROUGH SAT. HIGH PRESSURE 
WILL SLOWLY BUILD BACK INTO THE SW N ATLC WATERS SUN...THIS WILL 
FRESHEN THE TRADEWINDS OVER THE CENTRAL CARIBBEAN WATERS. 

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 AL