000
AGXX40 KNHC 281706
MIMATS

MARINE WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
130 AM EDT FRI APR 28 2006

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

UPPER LEVELS...
LONGWAVE TROUGH IS OVER THE ATLANTIC AREA WITH AN AXIS ALONG 
71W. A LONGWAVE RIDGE IS OVER THE GULF OF MEXICO WITH AN AXIS 
ALONG 93W. THE TROUGH WILL STRENGTHEN THROUGH SUNDAY AS A COUPLE 
OF SHORTWAVES DROP INTO THE TROUGH.  LATER ON SUNDAY AND MONDAY 
THE TROUGH WILL BEGIN TO MOVE EAST WITH LITTLE CHANGE IN 
STRENGTH.  BY TUESDAY THE TROUGH WILL HAVE ROTATED NORTHEAST OF 
THE AREA LEAVING BEHIND A NEAR ZONAL FLOW PATTERN OVER THE 
AREA.  THIS PATTERN WILL CHANGE LITTLE THROUGH WEDNESDAY.

SURFACE...
THE MAJOR SYSTEM IS A LOW PRESSURE OFF THE SOUTHEAST U.S. 
COAST.  THE LOW IS FORECAST TO REMAIN OVER THE NORTHEAST PART OF 
THE ATLANTIC AREA THROUGH MONDAY THEN...AS THE UPPER TROUGH 
ROTATES NORTHEAST...SO DOES THE SURFACE LOW.  GALE FORCE WINDS 
ARE EXPECTED WITH THE LOW BEGINNING TONIGHT AND ENDING LATE 
SATURDAY NIGHT.  THE LOW WILL SLOWLY WEAKEN THROUGH MONDAY BUT 
THE ASSOCIATED FLOW WILL CONTINUE TO AFFECT THE NORTHEAST PART 
OF THE ATLANTIC AREA THROUGH WEDNESDAY. 

ANOTHER LOW WILL DEVELOP OVER TEXAS TONIGHT AND SOUTHEAST TO 
SOUTH WINDS OVER THE GULF OF MEXICO WILL INCREASE TONIGHT IN 
RESPONSE TO THE DEVELOPMENT.  A CONTRIBUTING FACTOR IS A 
BUILDING RIDGE CENTERED OVER FLORIDA WITH STRONG SOUTHERLY FLOW 
OVER THE GULF THROUGH SUNDAY.  THE SOUTHERLY FLOW WILL DIMINISH 
SUNDAY.

TRADES ARE LESS THAN NORMAL AND WILL REMAIN THAT WAY THROUGH 
WEDNESDAY.  THE ONLY WINDS NEAR 20 KNOTS WILL BE ALONG THE COAST 
OF SOUTH AMERICA.

WARNINGS...

ATLANTIC...
GALE WARNING...AMZ080...N OF 28N BETWEEN 69W AND 74W.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL