000
AGXX40 KNHC 181753
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SUN SEP 18 2011

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 RIDGE ACROSS THE NORTHERN GULF...AS A WEAK TROUGH 
CURRENTLY ACROSS THE YUCATAN PENINSULA WILL MOVE INTO THE 
EASTERN BAY OF CAMPECHE MON. THE TROUGH WILL MOVE INTO THE 
CENTRAL BAY OF CAMPECHE TUE THEN DISSIPATING WED. A TIGHTENED 
PRES GRADIENT ACROSS THE NE GULF WITH WITH ELY AROUND 15 KT N OF 
27N E OF 88W THROUGH MON THEN DIMINISH TUE. OTHERWISE MOSTLY 
LIGHT WIND ACROSS THE REMAINDER OF THE AREA THROUGH THE END OF 
THE WEEK.

SW N ATLC S OF 31N W OF 55W...
WEAKENING STATIONARY FRONT IN FAR NW PART OF ZONE OFF NE 
FLORIDA  WILL DISSIPATE LATER TODAY WITH RIDGE BUILDING IN ITS 
WAKE. WEAK TROUGH ACROSS THE NORTHERN BAHAMAS FROM 29N76W TO 
24N77W DRIFT W ACROSS BAHAMAS TODAY AND REACH COAST OF FLORIDA 
MON. NO SIGNIFICANT WIND ASSOCIATED WITH THE TROUGH HOWEVER A 
FEW SHOWERS ARE ALONG THE TROUGH AXIS. EXPECT WINDS TO BE 15 KT 
OR LESS THROUGH THE END OF THE WEEK.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
UPPER LEVEL DIVERGENCE CAUSED BY AN UPPER LEVEL CYCLONE JUST E 
OF PUERTO RICO ENHANCES CONVECTION OVER WINDWARD ISLANDS. 
SURFACE TROUGH E OF PUERTO RICO ALONG 65W WILL CONTINUE TO DRIFT 
W. THE TROUGH WILL MOVE ACROSS THE CENTRAL CARIBBEAN MON AND TUE 
THEN INTO THE W CARIBBEAN WED AND THU. A LOW PRES CENTER 1009 
WELL E OF THE AREA NEAR 11N36W IS FORECAST TO APPROACH THE 
TROPICAL N ATLC ZONE LATE INTO FORECAST PERIOD WITH WINDS 
INCREASE TO 20-25 KT AND SEAS BUILDING TO 12 FT.



WARNINGS...

GULF OF MEXICO...
.NONE.

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

SW N ATLC...
.NONE.
          
FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER DGS