000
AGXX40 KNHC 150622
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
230 AM EDT TUE MAR 15 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 RIDGING IS WEAKENING IN THE NE GULF AS A COLD FRONT 
HAS PUSHED INTO THE NW WATERS EXTENDING FROM NEAR NEW ORLEANS 
LOUISIANA TO BROWNSVILLE TEXAS. LIGHT AND VARIABLE 5-10 KT WINDS 
AND SEAS OF 2 FT OR LESS REMAIN RIGHT UNDER THE HIGH WITH E-SE 
10-15 KT OVER THE MAJORITY OF THE REMAINDER OF THE WATERS IN THE 
GULF E OF THE FRONT. RECENT BUOY OBSERVATIONS INDICATE N-NE 
10-15 KT WINDS BEHIND THE FRONT. LATEST RADAR AND SATELLITE DATA 
INDICATE ALMOST NIL PRECIPITATION ASSOCIATED WITH THE FRONT. THE 
FRONT WILL WEAKEN AS IT EXTENDS FROM APALACHEE BAY FLORIDA TO 
27N90W BY WED MORNING THEN WILL PUSH E OF THE AREA WED NIGHT 
WITH HIGH PRES REDEVELOPING OVER THE FAR NE GULF. HIGH PRES WILL 
THEN REMAIN NEARLY STATIONARY THROUGH SAT WITH SE 10-15 KT 
RETURN FLOW ONCE AGAIN DOMINATING ACROSS THE GULF. THE EXCEPTION 
WILL BE ALONG THE YUCATAN COAST WHERE A LOW LEVEL JET WILL 
SUPPORT 15-20 KT NE-E WINDS ALONG THE COAST DURING EVERY 
EVENING...WITH SIMILAR CONDITIONS ALONG AND JUST N OF THE W 
COAST OF CUBA DURING THE EVENINGS.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
NE WINDS OF 20-25 KT IN AND NEAR THE WINDWARD AND MONA PASSAGES 
AND IN THE LEE OF E CUBA CONTINUE AS SUPPORTED BY 0144Z AND 
0324Z ASCAT PASSES. SIMILAR WINDS ARE OCCURRING ACROSS THE 
CENTRAL CARIBBEAN AND ARE EXPECTED TO INCREASE TO 25-30 KT NEAR 
THE COAST OF COLOMBIA TONIGHT THROUGH THE PERIOD. OTHERWISE NE-E 
10-15 KT TRADES ARE PREVALENT ACROSS THE REMAINDER OF THE BASIN. 
TRADES WILL INCREASE TO AT LEAST 15-20 KT THROUGHOUT FRI AND SAT 
INCLUDING OVER THE TROPICAL N ATLC...EXCEPT S OF 15N...AS THE 
PRES GRADIENT BETWEEN STRENGTHENING LOW PRES OVER COLOMBIA AND 
HIGH PRES RIDGING N OF THE AREA TIGHTENS.

SW N ATLC W OF 55W...
1025 MB HIGH PRES IS CENTERED NEAR 30N75W WITH A RIDGE AXIS 
ORIENTED FROM JUST S OF BERMUDA THROUGH THE HIGH CENTER TO 
CENTRAL FLORIDA. LIGHT AND VARIABLE 5-10 KT WINDS PREVAIL NEAR 
AND UNDER THE RIDGE WITH NE 10-15 KT FLOW ELSEWHERE...EXCEPT 
15-20 KT OVER THE SE PORTION (TO 25 KT NEAR THE WINDWARD 
PASSAGE) AS CAPTURED BY A 0144Z ASCAT PASS. THE HIGH WILL WEAKEN
AND SHIFT NE OF THE AREA LATER TODAY AS A WEAK COLD FRONT
APPROACHES THE REGION FROM THE NW. THE FRONT WILL MOVE OFFSHORE
OF THE GEORGIA/N FLORIDA COAST WED AFTERNOON EXTENDING FROM NEAR 
31N73W TO GRAND BAHAMA EARLY THU THEN QUICKLY MOVING E OF THE 
AREA BY EARLY FRI AS HIGH PRES REBUILDS IN FROM THE CAROLINAS. 
FRI AND SAT...5-10 KT VARIABLE FLOW WILL PREVAIL OVER THE 
NORTHERN THIRD...NE-E 10-15 KT OVER THE CENTRAL THIRD...AND NE-E 
20 KT FLOW OVER THE SOUTHERN THIRD WHERE THE PRES GRADIENT WILL 
BE THE STRONGEST.

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER LEWITSKY