000
AGXX40 KNHC 271749
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SAT MAR 27 2010

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

WEAKENING STATIONARY FRONT IN THE SE GULF OF MEXICO EXTEND FROM 
THE STRAITS OF FLORIDA TO THE YUCATAN PENINSULA WILL DISSIPATE 
LATER TODAY. A BROAD RIDGE OF HIGH PRES EXTENDING FROM THE ATLC 
ACROSS THE NORTHERN GULF. SOUTHERLY RETURN FLOW WINDS INCREASE 
TONIGHT AHEAD OF THE NEXT COLD FRONT WHICH WILL MOVE OFF THE 
TEXAS COAST LATE TONIGHT INTO EARLY SUN. THE FRONT WILL EXTEND 
FROM SE LOUISIANA TO 23N97W SUN MORNING THEN FROM THE FLORIDA 
PANHANDLE TO THE YUCATAN PENINSULA SUN EVENING AND SE OF THE 
GULF MON. A 20-25 KT NORTHERLY SURGE ARRIVES BEHIND THE FRONT 
ACROSS THE GULF THEN DIMINISHES MON NIGHT AS HIGH PRES BUILDS IN 
ACROSS THE W GULF. HIGH PRES REMAINS IN CONTROL TUE THROUGH WED 
THEN MOVES E THU AND SLY RETURN FLOW INCREASE OVER THE NW GULF.

ATLC COLD FRONT CURRENTLY EXTENDS FROM NEAR 30N65W TO THE 
STRAITS OF FLORIDA. THE FRONT WILL MOVE E OF 65W THIS EVENING 
WITH HIGH PRES BUILDING ACROSS THE AREA. HIGH PRES MOVES E SUN 
WITH SLY RETURN FLOW INCREASING OFF THE FLORIDA COAST AHEAD OF 
THE NEXT COLD FRONT. GFS STILL HINTING AT MINIMAL GALES AHEAD OF 
THE FRONT ON MON ALTHOUGH WILL CONTINUE TO CAP WINDS AT 30 KT 
FOR NOW AS THIS IS LIKELY DUE TO CONVECTIVE FEEDBACK ISSUES 
ASSOCIATED WITH THE MODEL ALTHOUGH THE LATEST EUROPEAN MODEL IS 
ALSO INDICATING POSSIBLE 35 KT WINDS RIGHT ALONG AND N OF 30N SO 
WILL NEED TO CONTINUE TO MONITOR SUBSEQUENT MODEL RUNS. THE 
FRONT WILL EXTEND FROM 31N77W TO SE FLORIDA MON AFTERNOON THEN 
FROM 31N72W TO EASTERN CUBA EARLY TUE AND FROM 29N65W TO THE 
WINDWARD PASSAGE BY EARLY WED AND E OF THE AREA THU. HIGH PRES 
BUILDS IN BEHIND THE FRONT THROUGH THU.

A WEAK PRES GRADIENT REMAINS IN PLACE ACROSS THE MAJORITY OF THE 
BASIN EXCEPT FOR THE CENTRAL CARIBBEAN WHERE A TIGHTER GRADIENT 
EXISTS DUE TO LOW PRES LOCATED INLAND OVER COLOMBIA. THIS 
PATTERN WILL PERSIST THROUGH SUN THEN THE GRADIENT TIGHTENS WITH 
20-25 KT TRADES EXPANDING FROM THE CENTRAL CARIBBEAN TO THE E 
CARIBBEAN SUN NIGHT THROUGH MON. A COLD FRONT WILL MOVE THROUGH 
THE YUCATAN CHANNEL AND INTO THE NW CARIBBEAN MON AFTERNOON AND 
EXTEND FROM CENTRAL CUBA TO THE GULF OF HONDURAS MON NIGHT THEN 
FROM THE WINDWARD PASSAGE TO NE NICARAGUA BY TUE THEN DISSIPATE 
TUE NIGHT. THE STRONGEST TRADES WILL REMAIN CONFINED TO 
THE CENTRAL CARIBBEAN AND ALONG THE NORTHERN COAST OF S AMERICA 
THROUGH WED THEN DECREASE SOME ON THU.

WARNINGS...
ATLC...
.NONE.
 
CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS