000
AGXX40 KNHC 221701
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
225 AM EDT TUE APR 22 2008

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

UPPER LEVELS...
TROUGH EAST OF 83W AND RIDGE WEST OF 83W. STRONG SHORTWAVE OVER 
THE NORTHWEST PART OF THE ATLANTIC AREA WILL MAINTAIN THE 
ATLANTIC TROUGH AND MOVE THROUGH THE TROUGH PASSING EAST OF 65W 
THURSDAY. TROUGH WILL THEN MOVE EAST AND WEAKEN AND BY SUNDAY 
PASS EAST OF 60W. THE RIDGE WEST OF THE TROUGH WILL SHIFT EAST 
WITH THE TROUGH AND BEGIN TO WEAKEN FRIDAY AND BY SUNDAY WEAK 
ZONAL FLOW WILL PREVAIL OVER THE AREA NORTH OF 20N.

SURFACE...
OCCASIONAL 20 KT SOUTHEAST RETURN FLOW WILL BE WEST OF 90W 
THROUGH THE PERIOD. OCCASIONAL EASTERLY 20 KT TRADES WILL BE OFF 
THE COASTS OF VENEZUELA AND COLOMBIA THROUGH THE PERIOD. BROAD 
LOW FORECAST FOR THE CENTRAL WATERS OF THE ATLANTIC AREA BUT 
MOST OF THE ASSOCIATED 20 KT WINDS WILL BE EAST OF 65W. 
NORTHEAST WINDS OF 20 KNOTS WILL BE OVER THE NORTHWEST PART OF 
THE ATLANTIC AREA WEDNESDAY THROUGH EARLY FRIDAY ASSOCIATED WITH 
THE PRESSURE GRADIENT BETWEEN THE BROAD LOW AND A RIDGE OVER THE 
SOUTHEASTERN UNITED STATES. OTHERWISE A WEAK PRESSURE PATTERN 
WILL BE OVER THE AREA.

WARNINGS...

ATLC...
NONE. 

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

.FORECASTER LL. TROPICAL PREDICTION CENTER.