000
AGXX40 KNHC 040649
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
230 AM TUE JUL 04 2006

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

ATLC...UPPER LEVEL CYCLONIC VORTEX AT 28N77W BRINGS DRY AIR MASS 
OVER FLORIDA PENINSULA AND SW N ATLC W OF 77W WITH A STRONG 
CONFLUENT FLOW COMBINED WITH UPSTREAM UPPER LEVEL RIDGE OVER SE 
STATES.  UPPER LEVEL DIFFLUENCE SE OF VORTEX ENHANCING NUMEROUS 
TSTMS OVER CENTRAL AND SE BAHAMAS AND GREATER ANTILLES ISLANDS 
AS WEAK NARROW RIDGE COVER SW CARIBBEAN. 

AT THE SURFACE...LARGE WELL ANCHORED RIDGE ALONG 31N PROVIDE 
HEALTHY E-SE FLOW ACROSS ENTIRE SW N ATLC...EXCEPT W OF 77W 
WHERE SURFACE TROUGH BACKS WINDS NE.  WINDS VEER AND WEAKEN AS 
RIDGE MOVES E BY LATE TUE...ONLY TO BEGIN REBUILDING SOUTHWEST 
BY THU AND FRI.  WINDS INCREASE ALONG SRN PERIPHERY OF RIDGE 
WHILE S-SW WIND N OF 27N REMAIN LIGHT.  

CARIBBEAN...STRONG E WINDS ALONG COAST OF COLOMBIA GET TEMPORARY 
RESPITE AS ATLC RIDGE MOVES E BUT COME BACK WITH A VENGEANCE AS 
RIDGE REBUILD AND TIGHTENS GRADIENT WITH PERSISTENT LOW PRES 
1008 MB OVER COLOMBIA.  LIKELIHOOD OF NEAR GALE FORCE WIND 
CONDITIONS E AND CENTRAL CARIBBEAN BY FRI NOT DISCARDED.

GULF OF MEXICO...WEAK PRESSURE PATTERN OVER E AND CENTRAL GULF 
OF MEXICO BECOMING WEAKER AS ATLC RIDGE MOVES E.  WEAK LOW PRES 
OVER MEXICO AND TEXAS MIGHT BREAK OTHERWISE TRANQUIL WIND FLOW 
WITH MODERATE RETURN FLOW W OF 95W THU AND FRI.  NO OTHER MAJOR 
CHANGES FORESEEN THROUGH NEXT SEVERAL DAYS.

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER WALLY BARNES