000
AGXX40 KNHC 300519
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
130 AM EDT WED MAY 30 2007

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

UPPER LEVELS...
STRONG SHORTWAVE OVER THE NORTHEAST PART OF THE ATLANTIC AREA 
WILL MOVE EAST AND BE EAST OF 60W FRIDAY.  TROUGH OVER THE 
WESTERN GULF OF MEXICO WILL STRENGTHEN AND MOVE TO THE CENTRAL 
GULF FRIDAY THEN WEAKEN AS IT MOVES TO THE EAST GULF AND FLORIDA 
SUNDAY.

SURFACE...
TROUGH ASSOCIATED WITH MIDDLE LEVEL ATLANTIC TROUGH IS OVER THE 
SOUTHEAST PART OF THE ATLANTIC AREA. TROUGH WILL MOVE TO PUERTO 
RICO LATE TODAY AND LINGER IN THE AREA FOR A COUPLE OF DAY 
BECOMING DIFFUSE FRIDAY.

THE MORE INTERESTING FEATURE IS THE LOW THAT DEVELOPS ASSOCIATED 
WITH THE GULF OF MEXICO TROUGH.  THE LOW FORMS IN THE SOUTHWEST 
GULF AND YUCATAN PENINSULA AREA THURSDAY AND MOVES NORTHEAST 
REACHING NORTH FLORIDA EARLY SUNDAY. THE GFS HAS A RATHER LARGE 
CIRCULATION ASSOCIATED WITH THE LOW AND ALSO PRESENTS AN UNUSUAL 
STRUCTURE.  A BROAD LOW WIND AREA IS NEAR THE CENTER OF THE LOW 
WITH A RING OF HIGH WINDS OUT AS FAR AS 200 NM.  ALMOST LIKE A 
WELL DEVELOPED TROPICAL CYCLONE ON STEROIDS.  WILL WRITE THE 
FORECAST AS IF LOW IS PRESENTED AS A MORE TRADITIONAL CYCLONE 
KEEPING THE WINDS IN THE 20 TO 25 KNOT RANGE.

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER LL