000
AGXX40 KNHC 191702
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
102 PM EDT MON MAY 19 2008

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

UPPER LEVELS...
LARGE DEEP LAYER RIDGE CENTERED JUST NORTH OF THE NORTHERN 
LEEWARD ISLANDS WITH AN AXIS EXTENDING TO THE SOUTH GULF OF 
MEXICO ALONG 20N. SOUTHWESTERLY TO WESTERLY FLOW IS NORTH OF 
25N.  RIDGE WILL GRADUALLY EXPEND WESTWARD AND COVER THE GULF OF 
MEXICO BY LATE WEDNESDAY. ON WEDNESDAY WESTERLY WINDS WILL BE 
NORTH OF 25N EAST OF 85W. SHORTWAVE WILL MOVE SOUTHEAST OFF THE 
U.S. MIDDLE ATLANTIC STATES WEDNESDAY NIGHT AND BY THURSDAY THE 
SOUTHERN PART OF A STRONG LOW PRESSURE LOCATED OVER THE 
NORTHEASTERN U.S. WILL EXTEND SOUTH OVER THE ATLANTIC AREA WITH 
WESTERLY FLOW NORTH OF 27N. THIS TROUGH WILL STRENGTHEN WITH A 
STRONG SHORTWAVE MOVING SOUTHWARD OVER THE ATLANTIC AREA 
SATURDAY AND BY LATE SATURDAY TROUGH WILL EXTEND OVER THE 
ATLANTIC AREA SOUTH TO 20N. RIDGE WILL CONTINUE OVER THE GULF 
OF MEXICO AND THE TROPICAL ATLANTIC AND CARIBBEAN THURSDAY 
THROUGH SATURDAY.

SURFACE...
WEAK RIDGE OVER THE AREA WITH AXIS NEAR 24N THROUGH THURSDAY 
WILL WEAKEN FURTHER FRIDAY AND SATURDAY. N OF 28N IN THE 
ATLANTIC AREA SOUTHWESTERLY WINDS OF 20 TO 25 KT WILL CONTINUE 
THROUGH FRIDAY. COLD FRONT WILL MOVE OFF THE SOUTHEAST U.S. 
COAST LATE THURSDAY AND BY FRIDAY EVENING EXTEND FROM NEAR 
BERMUDA TO SOUTH FLORIDA. HIGH PRESSURE BUILD OVER THE SOUTHEAST 
U.S. LATE FRIDAY THROUGH SATURDAY WITH INCREASING NORTH TO 
NORTHEAST WINDS OVER THE ATLANTIC NORTH OF THE FRONT.
 
LESS THAN NORMAL TRADES MOSTLY CONFINED TO SOUTH OF 15N WILL 
WEAKEN FURTHER FRIDAY AND SATURDAY.

RETURN FLOW IN THE WESTERN GULF BEGIN THURSDAY AND CONTINUE 
THROUGH SATURDAY. RETURN FLOW WINDS WILL BE NEAR 20 KNOTS.

WARNINGS...

ATLANTIC...
NONE. 

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

.FORECASTER LL. TROPICAL PREDICTION CENTER.