000
AGXX40 KNHC 251715
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 PM EDT WED JUN 25 2008

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

UPPER LEVELS...
TROUGH ALOFT CROSSES SW N ATLC FROM 25N65W TO NW HAITI WITH VERY 
DRY AIR MASS WITHIN 4 DEG NW OF AXIS.  NARROW RIDGE UPSTREAM 
BRINGS ABUNDANT TRPCL MOISTURE FROM E PAC INTO GLFMEX AND 
FLORIDA PENINSULA.  SECOND TROUGH FROM CYCLONIC VORTEX AT 31N88W 
TO 25N92W CAUSING DIFFLUENT FLOW OVER ERN GLFMEX JUST OVER TRPCL 
WAVE CREST NOW ALONG 82W WITH DEEP CONVECTION RAPIDLY DEVELOPING 
AND DRIFTING OVER SW FLORIDA.  

ELSEWHERE...BROAD ANTICYCLONIC CIRCULATION CENTERED AT 12N55W 
HAS RIDGE EXTEND W OVER ERN CARIBBEAN WITH DEEP TROUGH FROM SW 
N ATLC EXTENDING FROM WINDWARD PASSAGE TO PANAMA OVER WRN 
CARIBBEAN.  ABUNDANT MOISTURE ADVECTED FROM CONTINENTAL TROPICS 
INTO ERN HALF OF BASIN WHILE WRN HALF REMAINS DRY.

SURFACE...
RIDGE OVER ATLANTIC AREA ALONG 30N EXTENDS INTO NRN GLFMEX. 
LIGHT TO MODERATE E-SE FLOW S OF RIDGE WITH VERY LIGHT WIND 
CLOSE TO RIDGE AXIS THROUGH MON.  STEADY E FLOW S OF 25N 
STRENGTHENS THROUGH FORECAST PERIOD. 

WEAK LOW PRES 1008 MB OVER NWRN COLOMBIA TIGHTENS PRES GRADIENT 
WITH ATLC RIDGE PRODUCING STRONG AND GUSTY E TRADES ACROSS 
ENTIRE CARIBBEAN BASIN THROUGH FORECAST PERIOD.  

WARNINGS...

ATLANTIC...
NONE. 

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

.FORECASTER WALLY BARNES. TROPICAL PREDICTION CENTER.