000
AGXX40 KNHC 080639
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
240 AM EDT SUN JUL 08 2007

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

SW N ATLC...
STRENGTHENING WELL ANCHORED HIGH PRES RIDGE AXIS ALONG 28N 
MAINTAINS STEADY FLOW OF EASTERLY TRADES S OF 23N WITH LONG 
FETCH.  WEAK TROUGH ALONG FLORIDA PENINSULA ALLOWS SOME OF 
TROPICAL MOISTURE TO REACH N OF 25N W OF 75W WITH LINE OF TSTMS. 
MODEL GUIDANCE SHOWS STEADY ELY FLOW WITH 5-6 FT HEIGHTS WHEN 
SHIP REPORTS INDICATE DOUBLE THOSE FIGURES.  FCST RELIES MORE ON 
OBSERVATIONS THAN MODEL FOR SEAS.

CARIBBEAN AND TROPICAL N ATLC...
STRONG PRES GRADIENT OVER CARIBBEAN CONTINUES WITH WINDS TO 30 
KT OFF COLOMBIAN COAST AND SEAS RUNNING AS HIGH AS 15 FT.  AGAIN 
NWW3 UNDER DOES SEAS BUILDING TO 13 BY FRI WHEN PRESENT OBS 
INDICATE 15 FT ALREADY THERE...POSSIBLE LONG FETCH AGAIN NOT 
GETTING INTO NWW3...OR NOT ACCOUNTING FOR STRONGER WINDS 
ASSOCIATED WITH TRPCL WAVE ALONG 80W.  FCST WILL TAKE SHIP 
REPORTS AS TRUE BUT WILL NOT INCREASE IT ANY FURTHER DOWN FCST 
PERIOD.

GULF OF MEXICO...
TRANQUIL WEATHER THROUGH FCST PERIOD.  HIGH PRES 1018 MB OVER 
N/CENTRAL GULF MERGE WITH ATLC RIDGE SUN...THEN STATIONARY ALONG 
28N THROUGH THU.  WINDS REMAIN LIGHT NEAR RIDGE AXIS AND ELY 
OVER SRN HALF OF GULF. SEAS REMAIN BELOW 4 FT ENTIRE FCST PERIOD.

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER WALLY BARNES