000
AGXX40 KNHC 180623
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
220 AM FRI AUG 18 2006

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

GULF OF MEXICO...
AN EVENING QUIKSCAT PASS SHOWED AN OPEN TROUGH OVER THE CENTRAL 
GULF HINTING THAT THE LOW PRES CENTER IN THE AREA DISSIPATED 
YESTERDAY. THE REMNANT TROUGH WILL MOVE SLOWLY EAST REACHING THE 
TX COAST BY SAT NIGHT. WATER VAPOR IMAGERY SHOWS ASSOCIATED 
UPPER LOW MOVING INTO THE WRN GULF WITH MINIMAL CONVECTION. ATLC 
RIDGE WILL BUILD W OVER THE GULF THROUGH SUN AND MON. LOOKING 
AHEAD...GFS AND NOGAPS INDICATE A WEAK LOW MOVING INTO THE S 
CENTRAL GULF NEXT TUE BRINGING INCREASING SE FLOW TO THE ERN 
GULF. 

SW N ATLC...
ATLC RIDGE AXIS IS SITUATED ALONG ROUGHLY 28N. 00Z ANALYSIS 
CARRIES A WEAK TROUGH ALONG 75W NE OF THE BAHAMAS. SEVERAL SHIP 
OBSERVATIONS ALONG WITH QUIKSCAT IMAGERY SHOW UP TO 20 KT E WIND 
S OF THE RIDGE AND N OF HISPANIOLA NEAR TURKS AND CAICOS. EXPECT 
WINDS AND SEAS TO DIMINISH IN THIS AREA AS TROUGH DAMPENS OUT 
AND THE GRADIENT LOOSENS. OTHERWISE...GFS SHOWS A SERIES OF WEAK 
IMPULSES MOVING NW AROUND THE RIDGE OVER THE NEXT SEVERAL 
DAYS...BUT WITH LITTLE IMPACT ON WINDS AND SEAS.

CARIBBEAN AND TROPICAL N ATLC...
BUOY 42058 IS BACK IN SERVICE IN THE CNTRL CARIBBEAN...AND HAS 
BEEN REPORTING GENERALLY E WINDS AT 15 KT FOR SEVERAL HOURS. 
HOWEVER...QUIKSCAT IMAGERY FROM LATE AFTERNOON YESTERDAY AND 
SHIP OBSERVATIONS OFF WRN VENEZUELAN COAST SHOW GENERALLY 20 KT 
FLOW IN PLACE OVER MUCH OF THE CNTRL CARIB AND IS EXPECTED TO 
PERSIST THROUGH THE WEEKEND. GFS AND NOGAPS SPIN UP A LOW OFF 
CARIB COAST OF PANAMA THIS WEEKEND AND MIGRATE IT UP THE E 
CENTAM COAST THROUGH TUE. THIS MAY INCREASE WINDS AND SHIFT 
STRONGEST WINDS W TO COLOMBIAN COAST EARLY NEXT WEEK. WINDS ARE 
PROGGED TO INCREASE OVER TROP ATLC WATERS BY LATE WEEKEND IN 
ADVANCE OF NEXT TROP WAVE APPROACH FROM THE E. 

NO MAJOR CHANGES TO FORECASTS ATTM.

.WARNINGS,

ATLC...NONE.
CARIBBEAN...NONE.
GULF OF MEXICO...NONE.

FORECASTER CHRISTENSEN