000
AGXX40 KNHC 040638
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
230 AM WED OCT 04 2006

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

UPPER LEVELS...
DEEP LAYER TROUGH ACROSS SW N ATLC REMAINS ALMOST INTACT FOR 
LAST 24 HRS WITH CUT OFF CYCLONIC VORTEX FORMING NEAR ITS BASE 
OVER CUBA.  NARROW UPPER LEVEL RIDGE OVER GULF OF MEXICO BEING 
FORCED S AND E BY SECOND DEEP TROUGH COMING OFF TEXAS COASTAL 
WATERS.  ABUNDANT MOISTURE BEING ADVECTED INTO GULF OF MEXICO 
FROM E PAC ITCZ DEBRIS.  SEE INTERACTION WITH TROPICAL WAVE IN 
PARAGRAPH BELOW. 

OTHERWISE...ATLC TROUGH EXTENSION INTO CARIBBEAN BASIN FORMS 
CYCLONIC VORTEX NEAR CUBA/JAMAICA THEN DRIFT NE AND WEAKENS.  
WEAK RIDGE EVENTUALLY REPLACES VORTEX SAT AND SUN.

SURFACE...
TIGHT GRADIENT BETWEEN HIGH PRES 1027 MB COMING OFF N CAROLINA 
COAST AND ATLC TROUGH PRODUCING LONG STRETCH OF STRONG NE WIND 
ACROSS SW N ATLC...FLORIDA PENINSULA...GULF OF MEXICO INTO BAY 
OF CAMPECHE THROUGH THU NIGHT AND GRADUALLY DIMINISH FRI THROUGH 
SUN AS RIDGE MOVES AWAY FROM FORECAST WATERS.  COLD FRONT MOVES 
OFF SE COAST SAT AND EXTEND FROM 31N70W TO S CENTRAL FLORIDA 
SUN.  

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER WALLY BARNES