000
AGXX40 KNHC 031750
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
105 PM EDT THU APR 3 2008

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

SURFACE...
STRONG 1030 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 30N52W 
WITH A STRONG ASSOCIATED PRESSURE GRADIENT SOUTH OF 24N. THE 
HIGH WILL WEAKEN SLOWLY THROUGH MONDAY AND WILL DRIFT W TO NEAR 
26N64W WITH 1021 MB BY MONDAY MORNING. THE ASSOCIATED PRESSURE 
GRADIENT WILL CHANGE LITTLE THROUGH SATURDAY THEN WEAKEN SUNDAY. 
THIS PRESSURE GRADIENT WILL KEEP THE TRADES IN THE ATLC AND THE 
CARIBBEAN EAST OF 75W ABOVE NORMAL THROUGH THE PERIOD.

RIDGE WILL BUILD WEST ALONG 30N INTO THE GULF OF MEXICO THIS 
AFTERNOON AND TONIGHT WITH INCREASING SOUTHERLY RETURN FLOW. 
COLD FRONT ASSOCIATED WITH A SHORTWAVE WILL MOVE OFF TEXAS 
COAST FRIDAY AFTERNOON. FRONT WILL WEAKEN SATURDAY AND BE ALONG 
A LINE FROM FLORIDA PANHANDLE TO BAY OF CAMPECHE MIDDAY 
SATURDAY. FRONT WILL STALL AND BEGIN TO MOVE BACK NORTH SATURDAY 
NIGHT AND BY LATE SUNDAY BECOME DIFFUSE OVER THE NORTHWEST PART 
OF THE GULF.  EXPECT CONVECTION ALONG THE FRONT ONCE THE FRONT 
GOES E OF 90W INTO FLORIDA.  

UPPER LEVELS...
RIDGE IS OVER THE GULF OF MEXICO WITH A SMALL TROUGH OVER THE W 
ATLANTIC BETWEEN 70W AND 80W.  WESTERLIES ARE E OF 70W.  A 
STRONG SHORTWAVE WILL MOVE OFF THE UPPER TEXAS COAST FRIDAY 
NIGHT AND MOVE EAST ALONG THE NORTH GULF COAST AND WEAKEN. ON 
SUNDAY BROAD TROUGH OVER THE GULF OF MEXICO N OF 22N AND BROAD 
RIDGE ELSEWHERE. 

WARNINGS...

ATLC...
NONE. 

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER FORMOSA