000
AGXX40 KNHC 311746
MIMATS

MARINE WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SUN AUG 31 2008

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

MAJOR HURRICANE GUSTAV NEAR 25.3N 86.0W AT 1500 UTC IS FORECAST 
TO CONTINUE ON A NW TRACK INTO THE SOUTHERN LA COAST TOMORROW 
AND MOVE INLAND TO 30.0N 91.5W MON EVENING. INTERESTS ON THE N 
CENTRAL GULF COAST SHOULD CLOSELY MONITOR THE PROGRESS OF 
GUSTAV. FOR THE OFFICIAL NHC FORECAST...PLEASE SEE THE WTNT22 
KNHC OR THE TCMAT2.

TROPICAL STORM HANNA CONTINUES TO CHURN IN THE ATLC NEAR 23.3N 
70.0W. THE MODELS DIVERGE SIGNIFICANTLY WITH THE TRACK OF HANNA 
AFTER 24 TO 36 HOURS...WITH THE UKMET STICKING TO ITS GUNS 
CARRYING THE SYSTEM WSW INTO CUBA. MEANWHILE...THE NAM AND 
NOGAPS CARRY THE SYSTEM OFF TO THE NW...ALLOWING THE UPPER LOW 
CURRENTLY PASSING SE THROUGH THE CANADIAN MARITIMES TO PICK UP 
HANNA. THE OFFICIAL FORECAST IS CLOSER TO THE MIDDLE-OF-THE-ROAD 
GFS AND 00Z ECMWF SOLUTIONS UNTIL WED WHEN THE GFS APPEARS TO 
HAVE SOME CONVECTIVE FEEDBACK ISSUES WHICH APPEAR TO ACCELERATE 
HANNA TO THE NE. OVERALL...THE ECMWF IS CLOSEST TO THE OFFICIAL 
FORECAST WHICH IS POSTED UNDER THE HEADER WTNT23 KNHC OR TCMAT3.

ELSEWHERE...A TROPICAL WAVE NEAR 50W IS EXPECTED TO SLOWLY MOVE 
NW TOWARD THE AMPLIFYING UPPER/MID LEVEL TROUGH BUILDING ALONG 
65W. NOON COORDINATION BETWEEN NHC AND HPC AGREED TO DROP THE 
TROPICAL WAVE BY WED.  A SECOND TROPICAL WAVE WITH AN EMBEDDED 
LOW NEAR 16N32W IS FORECAST TO MOVE WNW...CROSSING 55W ON THU.  
THIS SOLUTION IS CLOSEST TO THE 00Z ECMWF.

WARNINGS...
SUBJECT TO CHANGE BASED ON LATEST NHC ADVISORY

ATLANTIC...
TROPICAL STORM WARNING FROM 20N TO 27N BETWEEN 66W AND  
75W...AMZ080

CARIBBEAN...
NONE.

GULF OF MEXICO...
HURRICANE WARNING N OF 26N E OF 94W...GMZ080
HURRICANE WARNING N OF 23N...GMZ084
TROPICAL STORM WARNING N OF 23N W OF 83W...GMZ086

FORECASTER SCHAUER CLARK. TROPICAL PREDICTION CENTER.