000
AGXX40 KNHC 200457
MIMATS

MARINE WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
100 AM EDT SAT SEP 20 2008

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

UPPER LEVELS...
WEAK TROUGH OVER THE GULF OF MEXICO AND A RIDGE OVER THE 
SOUTHWEST NORTH ATLANTIC WILL CHANGE LITTLE THROUGH SUNDAY. 
TROUGH WILL THEN WEAKEN AND BROAD RIDGE WILL BUILD ACROSS THE 
AREA MONDAY AND TUESDAY. WEDNESDAY THE RIDGE WILL WEAKEN SOME AS 
A WEAK TROUGH DEVELOPS ALONG 80W.

SURFACE...
BROAD TROUGH OVER NORTHERN SOUTH AMERICA AND THE CARIBBEAN
THROUGH WEDNESDAY. RIDGE NORTH OF THE AREA THROUGH MONDAY.
THE RIDGE WILL STRENGTHEN AND SHIFT SOUTH SOME TUESDAY AND 
WEDNESDAY TIGHTENING THE PRESSURE GRADIENT OVER THE NORTHERN 
PART OF THE AREA.
 
WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL. TROPICAL PREDICTION CENTER.