000
AGXX40 KNHC 131902
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
300 PM EDT THU SEP 13 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...
WEAK TROUGH WITH SCATTERED STRONG CONVECTION OVER SW GULF 
MEXICAN COAST MOVES INLAND THIS AFTERNOON.  LINGERING MOISTURE 
LEFT BY DISSIPATED STATIONARY FRONT STILL POPS SCATTERED 
MODERATE CONVECTION OVER NORTHERN GULF AND STRAITS OF FLORIDA.  
ELSEWHERE...HIGH PRES CENTER OVER SOUTHEASTERN STATES PROMPTS 
FRESH NE TO E BREEZE ACROSS BASIN.  HIGH PRES MOVES FURTHER E 
RELAXING GRADIENT AND ALLOWING WIND TO DIMINISH TO A GENTLE 
BREEZE AND SEAS TO SUBSIDE TO 2-4 FT ACROSS GULF THROUGH WEEKEND.

SOUTHWEST NORTH ATLC S OF 31N W OF 55W...
WEAK LOW PRES CENTER 1016 MB FORMED AT 29N67W WITH STATIONARY 
FRONT TO 25N70W THEN TO STRAITS OF FLORIDA.  FRESH TO STRONG NE 
TO E BREEZE ALONG STRETCH N OF STATIONARY FRONT DIMINISHES AS 
FRONT DISSIPATES FRI.  LOW PRES DRIFT NE ALLOWING HIGH PRES OVER 
SE STATES TO MOVE OFFSHORE BLOCKING FURTHER WESTWARD INTRUSION 
BY NADINE.  WINDS DIMINISH THROUGHOUT BASIN SAT AND SUN BUT 
LARGE E SWELLS FROM NADINE PROPAGATE EASTWARD ACROSS 65W FRI AND 
SAT BUT QUICKLY SUBSIDE AS NADINE TURNS EAST.  

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
MODERATE TO FRESH TRADE WINDS ACROSS CARIBBEAN EXPECTED TO 
DIMINISH AS NADINE MOVES AWAY FROM REGION AND ATLC RIDGE TO THE 
E RELAXES PRESSURE GRADIENT FRI THROUGH TUE.  NADINE EXPECTED TO 
REMAIN E OF 55W BUT ASSOCIATED SWELL WILL IMPACT N PORTIONS 
TROPICAL ATLC WATERS LATER THIS AFTERNOON THROUGH FRI.

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 WALLY BARNES