000
AGXX40 KNHC 251717
MIMATS

MARINE WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
120 PM EDT TUE APR 25 2006

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

UPPER LEVELS...
RATHER FLAT LONGWAVE TROUGH IS OVER THE EASTERN PART OF THE 
ATLANTIC AREA WITH BROAD RIDGE ELSEWHERE.  THE TROUGH WILL MOVE 
EAST OF 55W WEDNESDAY AND A LONGWAVE TROUGH WILL PUSH SOUTH OVER 
THE NORTHERN PART OF THE GULF OF MEXICO AREA WEDNESDAY.  THE 
LONGWAVE TROUGH WILL CONTINUE TO DEVELOP AND MOVE EAST WITH THE 
TROUGH CENTERED OVER FLORIDA MIDDAY THURSDAY WITH RIDGE EAST OF 
72W AND WEST OF 90W.  THE TROUGH WILL DEVELOP FURTHER WITH AN 
AXIS ALONG 72W MIDDAY FRIDAY AND A RIDGE EAST OF 60W AND WEST OF 
85W.  THE TROUGH WILL CHANGE LITTLE AND MOVE EAST AND BY MIDDAY 
SATURDAY THE TROUGH AXIS IS ALONG 68W WITH RIDGE EAST OF 58W AND 
A RIDGE WEST OF FLORIDA.  BY MIDDAY SUNDAY TROUGH WILL WEAKEN 
SOME AND MOVE EAST WITH AN AXIS ALONG 60W.  BROAD RIDGE IS OVER 
THE AREA SUNDAY WEST OF 65W.

SURFACE...
RIDGE IS ALONG 26N. RIDGE WILL WEAKEN FROM THE WEST AS A COLD 
FRONT MOVES OFF TEXAS COAST EARLY WEDNESDAY AND WILL MOVE EAST 
OF THE GULF OF MEXICO BY LATE THURSDAY.  WINDS OVER THE GULF OF 
MEXICO WILL BE MOSTLY LESS THAN 20 KT ASSOCIATED WITH THE 
FRONT.  THIS COLD FRONT WILL MOVE OFF THE GEORGIA COAST 
WEDNESDAY NIGHT AND BY MIDDAY THURSDAY BE THROUGH 31N77W TO 
CENTRAL FLORIDA. BY MIDDAY FRIDAY FRONT IS THROUGH 31N72W TO THE 
WINDWARD PASSAGE.  THE GFS DEVELOPS A LOW JUST NORTH OF THE AREA 
ALONG THE FRONT THURSDAY AND ALSO STRENGTHENS THE FRONTAL 
TROUGH. THIS INCREASES THE WIND OVER THE ATLANTIC ASSOCIATED 
WITH THE FRONT NORTH OF 25N FOR FRIDAY.  ON SATURDAY THE LOW 
MOVES NORTHEAST AND THE WINDS NEAR THE FRONT DECREASE SOME.  BY 
SUNDAY THE FRONT IS EAST OF THE AREA WITH HIGH CENTER NORTH OF 
THE ATLANTIC AREA.

THE TROPICAL ATLANTIC TRADES ARE SLIGHTLY LESS THAN NORMAL AND 
WILL CHANGE LITTLE THROUGH THE FORECAST PERIOD.  THE WINDS IN 
THE SOUTH PART OF THE CARIBBEAN WILL CONTINUE MODERATE TO STRONG 
THROUGH WEDNESDAY NIGHT THEN DECREASE SOME AS THE ABOVE 
MENTIONED FRONT MOVES NORTH OF THE AREA AND WEAKENS THE RIDGE.  
LIGHT TRADES WILL BE OVER THE CARIBBEAN BEGINNING THURSDAY AND 
CONTINUING THAT WAY THROUGH SUNDAY.

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL