000
AGXX40 KNHC 110645
MIMATS

MARINE WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
230 AM EDT SAT OCT 11 2008

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

UPPER LEVELS...
STATIONARY CUT-OFF CYCLONE JUST OFF NW CORNER OF SW N ATLC HAS 
DEEP LAYER TROUGH DIG S TO CENTRAL CUBA.  CYCLONE START TO DRIFT 
SW TO YUCATAN PENINSULA AS BROAD RIDGE BUILDS OVER SE CONUS.   
STRONG MID LATITUDE TROUGH N OF AREA OVER N CENTRAL ATLC DIGS S 
INTO NE PART OF SW N ATLANTIC SUN AND BY TUE COVER ENTIRE BASIN 
PLUS CARIBBEAN E OF 75W.  RIDGE OVER SE CONUS EXPANDS OVER 
ENTIRE GULF OF MEXICO BY WED MAINTAINING DRY AND STABLE AIR MASS.

SURFACE...
LARGE HIGH PRES 1022 MB CENTERED AT 34N63W FORCING STRONG E-NE 
FLOW ACROSS SW N ATLC.  RIDGE STRENGTHEN THROUGH SUN NIGHT THEN 
HOLD STEADY MON THEN WEAKEN TUE AND WED.  NWW3 GUIDANCE SOLUTION 
RISING SEAS TO 11 FT ON MON NIGHT AND TUE SUSPECT OF BEING 
SLIGHTLY HIGHER THAN REALLY EXPECTED IF FETCH IS LIMITED.

CARIBBEAN EASTERLY WINDS REMAIN UNDER CLIMATOLOGICAL MEAN AS 
WEAK PRES GRADIENT IS INTERRUPTED BY TROPICAL WAVE ALONG 62W AND 
86W.  SMALL AREAS OF WINDS UP TO 20 KT WITH SEAS LESS THAN 8 FT 
EXPECTED ALONG WAVES.  

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER WALLY BARNES. TROPICAL PREDICTION CENTER.