000
AGXX40 KNHC 191739
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
145 PM EDT SAT MAR 19 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...
HIGH PRES CENTERED OVER THE N CENTRAL WATERS THIS AFTERNOON WILL 
SHIFT NE OF AREA SUN LEAVING A RIDGE FROM NW FLORIDA TO SE 
TEXAS. EASTERLY WINDS AT 10 TO 15 KT WILL INCREASE TO 20 KT S OF 
THE RIDGE OVER THE FL STRAITS SUN...WITH THESE CONDITIONS 
SPREADING W TO THE S CENTRAL GULF SUN NIGHT...AND OVER THE W 
WATERS AT SE 15 TO 20 KT LATE MON. THE GRADIENT WILL RELAX WED 
AFTERNOON AS WEAK HIGH PRES FORMS OVER THE E GULF THROUGH THU.

SW N ATLC W OF 55W...
A RIDGE EXTENDING CURRENTLY W TO E ALONG 28N WILL WEAKEN AS A 
COLD FRONT RACES INTO THE NW PORTION TONIGHT...REACHING E TO W 
ALONG 24N SUN NIGHT. STRONG HIGH PRESSURE WILL BUILD IN WAKE OF 
THE FRONT WITH NE WINDS AT 20 TO 25 KT...EXCEPT 25 TO 30 KT 
BETWEEN 65W AND 55W. SEAS WILL BUILD TO 12 FT EXCEPT 13 TO 15 FT 
OVER WATERS SE OF BERMUDA EARLY MON. THE GRADIENT WILL RELAX 
OVER THE NW WATERS LATE MON WITH AN E TO W RIDGE SETTING UP 
ALONG 29N MON NIGHT...WITH THIS RIDGE SHIFTING S TO ALONG 27N 
TUE. WESTERLY WINDS WILL INCREASE N OF THE RIDGE TUE AS A SECOND 
DRY FRONT SWEEPS SE ACROSS THE E WATERS WED AND THU.
 
CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
TIGHT PRES GRADIENT BETWEEN HIGH PRES TO THE N OF THE AREA AND 
LOW PRES OVER COLOMBIA IS PRODUCING MODERATE TO STRONG NE TRADES 
ACROSS MUCH OF THE CARIBBEAN...WITH THE STRONGEST WINDS ALONG 
COAST OF COLOMBIA WHERE SEAS WILL BUILD TO 13 FT TONIGHT. THE 
GRADIENT WILL RELAX TUE NIGHT THROUGH THU. LIGHT NORTHERLY WINDS 
IN THE TROPICAL ATLC WATERS THIS AFTERNOON WILL INCREASE SUN 
NIGHT AS A DRY COLD FRONT RACES INTO THE NW PART AND WASHES OUT 
WITH STRONG HIGH PRES BUILDING IN ITS WAKE... RESULTING IN NE 20 
TO 25 KT OVER THE WATERS NE OF THE VIRGIN ISLANDS. SEAS WILL 
INCREASE TO 8 TO 11 FT IN N SWELL REACHING THE NE CARIBBEAN 
PASSAGES TUE. THESE NORTHERLY SWELLS WILL PASS S ACROSS THE 
WATERS E OF THE CARIBBEAN TUE REACHING THE COAST OF S AMERICA 
THU.   

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER NELSON