000
AGXX40 KNHC 231742
MIMATS

MARINE WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SAT APR 23 2011

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

GULF OF MEXICO...
NO MAJOR CHANGE IS EXPECTED ACROSS THE GULF OF MEXICO OVER THE 
NEXT SEVERAL DAYS AS HIGH PRES REMAINS IN CONTROL OF THE WEATHER 
PATTERN ACROSS THE REGION. THE PRES GRADIENT BETWEEN THIS HIGH 
PRES AND LOWER PRES OVER THE PLAINS AND NE MEXICO WILL RESULT IN 
20 TO 25 KT SLY RETURN FLOW OVER THE GULF THROUGH TUE AHEAD OF A 
COLD FRONT MOVING OFF THE TEXAS COAST LATE WED. THE COLD FRONT 
WILL MOVE RAPIDLY E AND EXTEND FROM THE FLORIDA BIG BEND TO THE 
BAY OF CAMPECHE THU. NLY WINDS BRIEFLY INCREASE TO 20-25 KT.

SOUTHWEST N ATLC...
LOW PRES LOCATED NEAR 24N65W WITH TROUGH SW TO THE DOMINICAN 
REPUBLIC COMBINED WITH A STRONG RIDGE ACROSS THE REMAINDER OF 
THE AREA IS PRODUCING 20-30 KT NE WINDS OVER THE EASTERN PORTION 
OF THE AREA. DISORGANIZED SHOWER ACTIVITY IS ASSOCIATED WITH 
THIS LOW. THE LOW IS FORECAST TO MOVE SW TO 22N67W THIS 
EVENING THEN WEAKEN INTO A TROUGH ON SUN AS IT MOVES WWD ACROSS 
THE SE BAHAMAS. THE TROUGH IS FORECAST TO REACH THE NW BAHAMAS 
MON EVENING AND MOVE ACROSS S FLORIDA MON NIGHT INTO TUE. ONCE 
AGAIN A RIDGE WILL DOMINATE MOST OF THE AREA BY WED. SLY WINDS 
WILL INCREASE ACROSS THE NW CORNER OF THE ZONE LATE WED AS A 
COLD FRONT APPROACHES SE U.S. COAST THU.

CARIBBEAN SEA AND TROPICAL ATLC W OF 55W...
STRONG HIGH PRES N OF AREA WILL PRODUCE AN AREA OF NE WINDS TO 
20 KT JUST S OF CUBA AND ACROSS THE WINDWARD PASSAGE. ELY WINDS 
OF 20 KT ARE ALSO BLOWING IN THE GULF OF HONDURAS. THESE 
CONDITIONS ARE EXPECTED TO DIMINISH BY SUN AS THE PRES GRADIENT 
RELAXES OVER THE NORTHERN CARIBBEAN AND A TROUGH MOVES ACROSS 
THE SE BAHAMAS. OTHERWISE RATHER TRANQUIL CONDITIONS PERSIST 
ACROSS THE REMAINDER OF THE BASIN WITH THE EXCEPTION OF NEAR THE 
COAST OF COLOMBIA WHERE NE TO E WINDS OF 20 KT ARE EXPECTED.

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER DGS