000
AGXX40 KNHC 011807
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT TUE JULY 1 2008

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

SFC FRONTAL TROUGH ACROSS THE NORTHERN GULF OF MEXICO WILL 
WEAKEN OVERNIGHT TONIGHT AS ITS SUPPORTING UPPER TROUGH LIFTS 
NORTHWARD.  WINDS WILL BE LIGHT AND VARIABLE ACROSS THE NORTHERN 
GULF OF MEXICO THROUGH WED AS A RESULT.  SFC RIDGE WILL BUILD 
ACROSS THE REGION ALONG 28N THROUGH THE REMAINDER OF THE 
PERIOD.  EXPECT E TO SE FLOW TO BUILD AS THE RIDGE MOVES IN.

IN THE SW N ATL...ONCE THE WEAKENING FRONTAL TROUGH ALONG THE 
EAST COAST DISSIPATES TOMORROW...HIGH PRESSURE AT THE SFC WILL 
CONTINUE BUILD THROUGH THE REGION...WITH THE RIDGE AXIS BUILDING 
NORTHWARD PASSING THROUGH 70W AT 30N TONIGHT AND LIFTING TO 33N 
BY SAT.  WINDS WILL BE OUT OF THE E TO SE AT 10 TO 15 KT THROUGH 
THE PERIOD.  

ACROSS THE CARIBBEAN...STRONG EASTERLY TRADE WINDS ARE EXPECTED 
THROUGH WED BEFORE SLACKENING TO 10 TO 15 KT AS THE ATLC RIDGE 
RETREATS N.  TWO TROPICAL WAVES BOTH S OF 15N...ONE CURRENTLY 
ALONG 69W AND THE OTHER ALONG 54W...SHOULD CONTINUE TO PROCEED W 
AROUND 15 KT THROUGH THE CARIBBEAN ALONG THE SOUTHERN PERIPHERY 
OF THE ATLC RIDGE.  THE WESTERN-MOST WAVE WILL PASS THROUGH THE 
WESTERN CARIBBEAN BY SUN.  LOOK FOR THIS WAVE TO PASS THROUGH A 
REGION OF UPPER LEVEL DIFFLUENCE ON THU THAT SHOULD HELP ENHANCE 
CONVECTION AS IT MOVES THROUGH CENTRAL AMERICA.  THE 
EASTERN-MOST WAVE WILL MOVE INTO THE CARIBBEAN BY WED AFTERNOON.

IN THE EXTENDED RANGE...A POTENTIAL LOW PRESSURE SYSTEM 
DEVELOPING WELL E OF THE AREA IS EXPECTED TO MOVE NORTHWEST 
APPROACHING 55W AND COULD SHIFT THE WINDS NORTHEASTERLY AND 
INCREASE THE STRENGTH OF THE FLOW OVER THE ATLC ON TROPICAL N 
ATLC BASIN FRI TO SUN.

ATLANTIC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

.FORECASTER SCHAUER CLARK. TROPICAL PREDICTION CENTER.