000 AGXX40 KNHC 141827 MIMATS MARINE WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 110 PM EST MON DEC 14 2009 MARINE WEATHER DISCUSSION FOR GULF OF MEXICO...CARIBBEAN SEA AND SOUTHWEST NORTH ATLC S OF 31N W OF 55W UPPER LEVELS... BROAD ANTICYCLONE IS OVER THE AREA CENTERED OVER THE BAHAMAS AND NORTHERN GREATER ANTILLES. STRONG SHORTWAVE WILL APPROACH THE WESTERN GULF OF MEXICO WEDNESDAY. RIDGE WILL WEAKEN AS THE SHORTWAVE APPROACHES AND MOVES OVER THE WESTERN GULF. BY THURSDAY WEAK RIDGE WILL BE OVER THE CARIBBEAN CENTERED OVER NORTHERN SOUTH AMERICA. FRIDAY THE SHORTWAVE WILL BE OVER THE EASTERN GULF OF MEXICO WITH MODERATE TO STRONG WESTERLIES NORTH OF 20N. BY SATURDAY THE SHORTWAVE WILL BECOME ABSORBED BY THE WESTERLIES WITH STRONG WESTERLIES NORTH OF 25N AND MODERATE WESTERLIES NORTH OF 18N. SURFACE... WEAK RIDGE ALONG 26N/27N. COLD FRONT ASSOCIATED WITH THE STRONG SHORTWAVE WILL MOVE OFF THE TEXAS COAST TUESDAY WITH STRONG NORTHERLY WINDS IN THE 20 TO 30 KT RANGE NORTH OF THE FRONT. THE ASSOCIATED HIGH PRESSURE BEHIND THE FRONT WILL NOT PUSH SOUTH BUT WILL MOVE EAST ACROSS THE EASTERN UNITED STATES THEREFORE THE FRONT WILL NOT EXTEND VERY FAR SOUTH. THE COLD FRONT WILL MOVE OFF THE GEORGIA COAST TUESDAY NIGHT AND BY EARLY THURSDAY LIE ALONG 27N. IN THE WEST GULF A SURFACE TROUGH WILL DEVELOP WITH STRONG WINDS WEST AND NORTH OF THE TROUGH. A LOW WILL DEVELOP THURSDAY IN THE WEST GULF. GALES MAY BE NEEDED NEAR THE LOW THURSDAY. THE 12Z RUN HAS GALES AND IF SUBSEQUENT RUNS KEEP THE SAME PATTERN GALES WILL BE NEEDED. THE LOW TRACKS EAST AND CROSSES CENTRAL FLORIDA EARLY FRIDAY AND THE MODEL STRENGTHENS THE LOW FURTHER IN THE ATLANTIC WITH A LARGE AREA OF GALES NEAR THE LOW. THIS AREA OF GALES IS MORE EXTENSIVE AND STRONGER THAN IN THE GULF AND GALES WILL BE MENTIONED IN THE ATLANTIC AREA FRIDAY AND SATURDAY ASSOCIATED WITH THIS LOW. TRADES ARE ABOVE NORMAL WITH GALES IN THE SOUTH PART NEAR THE COAST OF COLOMBIA. THE WINDS SHOULD FALL TO LESS THAN GALE FORCE DURING TUESDAY BUT REMAIN UP TO 30 KNOTS THROUGH WEDNESDAY NIGHT. AS THE LOW FORMS NORTH OF THE AREA TRADES WILL DIMINISH FRIDAY AND SATURDAY. THE ASSOCIATED COLD FRONT WILL ENTER THE NORTHWEST PART OF THE CARIBBEAN FRIDAY AND BY LATE SATURDAY EXTEND FROM EAST CUBA TO WESTERN PANAMA. THE HIGH BEHIND THE FRONT IS FAIRLY WEAK AND BECAUSE OF THIS WINDS WILL NOT BE VERY STRONG BEHIND THE FRONT REMAINING 20 KNOTS OR LESS. WARNINGS... ATLC... NONE. CARIBBEAN... .AMZ084 AND AMZ086...GALE WARNING S OF 14N BETWEEN 72W AND 77W. GULF OF MEXICO... .NONE. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ FORECASTER LL