000
AGXX40 KNHC 301800
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
100 PM EST SAT DEC 30 2006

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

UPPER LEVELS...
TROUGH OVER THE ATLANTIC AREA EAST OF 65W WILL MOVE EAST AND BE 
EAST OF 55W TUESDAY.  ANTICYCLONE CENTERED OVER THE NORTHWEST 
CARIBBEAN WILL ALSO MOVE EAST AND BE CENTERED NEAR 22N68W 
TUESDAY WITH A RIDGE EXTENDING NORTHEAST AND ALSO WEST TO OVER 
NORTHERN CENTRAL AMERICA.  BY THURSDAY THE ANTICYCLONE WILL BE 
CENTERED OVER THE GREATER ANTILLES WITH A RIDGE ACROSS THE 
ENTIRE AREA ALONG 20N.

STRONG SHORTWAVE TROUGH OVER TEXAS WILL BRUSH PAST THE GULF OF 
MEXICO ON ITS WAY NORTHEASTWARD IN THE WESTERLIES NORTH OF THE 
AREA. BY THURSDAY THE NEXT SHORTWAVE WILL BE OVER WEST TEXAS.

SURFACE...
STRONG RIDGE OVER THE ATLANTIC NORTH OF THE AREA WILL WEAKEN 
SOME BUT THE ASSOCIATED PRESSURE GRADIENT WILL REMAIN OVER THE 
CARIBBEAN.  COLD FRONT ASSOCIATED WITH THE SHORTWAVE OVER THE 
WEST CENTRAL GULF OF MEXICO WILL MOVE EAST. THE FRONT WILL 
WEAKEN SOME AS THE SHORTWAVE MOVES NORTHEAST AWAY FROM THE AREA 
AND MOVE EAST OF THE GULF TUESDAY AND BY WEDNESDAY THE FRONT 
WILL BE BECOMING DIFFUSE OVER THE NORTHEAST PART OF THE ATLANTIC 
AREA WITH A RIDGE NORTH OF THE AREA WEST OF THE FRONT.  THIS 
RIDGE WILL CONTINUE THROUGH THURSDAY.  NEXT COLD FRONT WILL MOVE 
OFF TEXAS COAST EARLY THURSDAY.

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL