000
AGXX40 KNHC 120609
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
205 AM EST TUE DEC 12 2006

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

UPPER LEVELS...
SHORTWAVE TROUGH OVER WEST TEXAS EXTENDS EAST TO OVER THE 
NORTHWEST PART OF THE GULF OF MEXICO.  SHORTWAVE WILL MOVE EAST 
AND WEAKEN AND PASS JUST NORTH OF THE AREA THROUGH WEDNESDAY. 
NEXT SHORTWAVE MOVES TO EAST TEXAS THURSDAY TO OVER THE EAST 
GULF FRIDAY AND THE SOUTHWEST NORTH ATLANTIC SATURDAY.  
OTHERWISE BROAD RIDGE IS OVER THE AREA WITH A MEAN CENTER OVER 
THE WESTERN CARIBBEAN.

SURFACE...
FIRST SHORTWAVE WILL HAVE AN ASSOCIATED COLD FRONT BUT WINDS 
WILL BE 15 KNOTS OR LESS ASSOCIATED WITH THIS FRONT. MAIN EFFECT 
WILL JUST BE TO TURN THE WINDS NORTHERLY FOR A BRIEF WHILE.
SECOND COLD FRONT WILL BE SLIGHTLY STRONGER.  WITH BRIEF 20 KT 
WINDS ASSOCIATED WITH THE WIND SHIFT.  GFS MODEL DEVELOPS LOW 
OVER FLORIDA FRIDAY ASSOCIATED WITH THE SHORTWAVE.  THE MODEL 
DEVELOPS A GALE AS THE LOW MOVES OVER THE NORTH ATLANTIC ALONG 
28N/29N SATURDAY.  WILL HAVE TO KEEP WATCH FOR THIS AS THERE IS 
NOTHING IN THE FORECAST ABOUT THIS DEVELOPMENT.  IF THE FEATURE 
PERSISTS THROUGH SEVERAL MODEL RUNS LATER PERIODS WILL HAVE TO 
BE REVISED.

CARIBBEAN AND TROPICAL ATLANTIC WINDS NEAR NORMAL WILL BECOME 
LESS THAN NORMAL FRIDAY AND SATURDAY AS THE LOW DEVELOPMENT 
NORTH OF THE AREA WEAKENS THE PRESSURE GRADIENT OVER THIS 
AREA.     
  
WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL