000
AGXX40 KNHC 271746
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
145 PM EDT WED JUN 27 2007

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

UPPER LEVELS...
STUBBORN UPPER LEVEL CYCLONIC VORTEX REFUSES TO BUDGE OUT OF 
AREA AND CONTINUES TO SPIN NEAR 21N86W INCREASING DIFFLUENT FLOW 
OVER TRPCL WAVE CREST NOW APPROACHING STRAITS OF FLORIDA.  
ENHANCED CONVECTION HAS SPREAD OVER BAHAMA ISLAND CHIN AND ERN 
CUBA AS WELL AS MAIN AXIS OF TRPCL WAVE ALONG 77W.  VORTEX HAS 
UPPER LEVEL TROUGH ELONGATED NE TO 31N76W AND SW ACROSS 
GUATEMALA INTO E PAC.  WEAK JET CORE FEEDS TROPICAL MOISTURE 
FROM SOUTH AMERICA NE ACROSS WRN CARIBBEAN INTO CONVECTION AREA 
EXACERBATING IT.  

SURFACE...
CENTRAL ATLC RIDGE JUST N OF AREA DRIFT SE TO 30N FRI AND 28N 
SAT AND 27N SUN AS WEAK FRONTAL SURFACE MOVES OFF ERN SEABOARD 
LATE SUN.  SW N ATLC ELY WINDS EXPECTED TO LESSEN WITHIN NEXT 
36-48 HRS BACKING TO SE AND S AS RIDGE MOVES.   

SIMILARLY CARIBBEAN SEA STRONG TRADES EXPECTED TO WEAKEN AND 
DECREASE IN COVERAGE WITHIN NEXT 48 HRS REMAINING STRONG ONLY IN 
VICINITY OF COLOMBIAN COAST.  

GULF OF MEXICO WILL REMAIN WITH LIGHT WINDS AS EXTENSION OF ATLC 
RIDGE SITS OVER CENTRAL GULF WITH A WEAK PRES GRADIENT ACROSS 
MOST OF BASIN. 

WARNINGS...
ATLANTIC...NONE.

CARIBBEAN...NONE.

GULF OF MEXICO...NONE.

FORECASTER  WALLY BARNES