000
AGXX40 KNHC 301756
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM 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...
A DEEP LAYERED TROUGH OVER THE EASTERN 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. A RIDGE AXIS EXTENDING FROM CUBA NORTHWARD ALONG THE 
EAST COAST OF THE U.S. IS FORECAST TO REMAIN IN PLACE THROUGH 
FRI THEN WILL SLOWLY MOVE EWD ACROSS THE SOUTHWEST NORTH ATLC. 

SURFACE...
TROUGH ASSOCIATED WITH MIDDLE LEVEL ATLANTIC TROUGH EXTENDS FROM 
A 1008 MB SFC LOW NEAR 32N59W TO HISPANIOLA. TROUGH WILL MOVE TO 
PUERTO RICO LATE TODAY AND LINGER IN THE AREA FOR A COUPLE OF 
DAYS BECOMING DIFFUSE FRIDAY.

THE MORE INTERESTING FEATURE IS ANOTHER TROUGH THAT LIES ALONG 
87W FROM 15N TO 22 N. THIS FEATURE IS GENERATING AN AREA OF 
SHOWERS WITH EMBEDDED TSTMS OVER THE NW CARIBBEAN...BUT MAINLY 
JUST SOUTH OF WESTERN CUBA. THIS TROUGH WILL SLOWLY MOVE WWD 
INTO THE SE GULF ON FRI BRINGING AN INCREASE IN WINDS AND SEAS.  
A SFC LOW PRES IS FORECAST BY THE COMPUTER MODELS TO FORM IN THE 
SOUTHEAST GULF AND YUCATAN PENINSULA AREA DURING THE WEEKEND. 
THIS LOW WILL MOVE NORTHEAST REACHING NORTH FLORIDA EARLY 
SUNDAY. WILL WRITE THE FORECAST KEEPING THE WINDS IN THE 20 TO 
25 KNOT RANGE THU NIGHT AND FRI. SEAS ARE EXPECTED TO BUILD TO 
11 FT. CURRENTLY...THE TIGHTENED PRES GRADIENT BETWEEN THIS 
TROUGH AND HIGH PRES LOCATED OVER THE SE U.S. IS PICKING UP ELY 
WINDS TO 20-25 KT ACROSS THE STRAITS OF FLORIDA. 

TRADE WINDS ON THE ORDER OF 15 TO 20 KT ARE BLOWING ACROSS MUCH 
OF THE CARIBBEAN BASIN...BUT ESPECIALLY ACROSS THE NW PORTION OF 
THE AREA. 

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

GR