000
AGXX40 KNHC 041847
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
245 PM EDT SAT JUN 04 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...
THE WEAK LOW PRESSURE CENTER HAS MOVED INLAND OVER THE NE COAST 
OF MEXICO ARLY THIS AFTERNOON. OTHERWISE...A RIDGE OF HIGH 
PRESSURE PREVAILS OVER THE GULF COAST STATES. THE PRESSURE 
GRADIENT BETWEEN THE RIDGE OF HIGH PRESSURE AND BROAD ARE OF LOW 
PRESSURE OVER THE WESTERN CARIBBEAN IS RESULTING IN FRESH TO 
STRONG WINDS OVER THE SE PART OF THE GULF...WHICH WILL MAINTAIN 
MODERATE TO FRESH NE TO E WINDS THERE INTO EARLY SUN AFTERNOON. 
THE RIDGE OF HIGH PRESSURE IS FORECAST TO SHIFT TO THE N CENTRAL 
GULF THROUGH MON...AND TO THE NW GULF TUE AND WED AS IT WEAKENS.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
A BROAD AREA OF LOW PRES OVER THE WESTERN CARIBBEAN REMAINS 
ANCHORED TO THE MONSOON TROUGH WHICH EXTENDS S TO SW FROM THE 
LOW OVER THE SOUTHERN PART OF CENTRAL AMERICA. CONVECTION 
REMAINS PRIMARILY OVER THE EASTERN HALF OF THE LOW WHERE MOIST S 
TO SW MONSOONAL FLOW PREVAILS. ESTIMATED PRESSURE OF THE LOW IS 
1007 MB. THERE IS CURRENTLY A MEDIUM CHANCE OF THIS SYSTEM 
BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS. NUMEROUS 
SHOWERS AND CLUSTERS OF TSTMS...WITH HIGHER WINDS AND SEAS NEAR 
THE SHOWERS AND TSTMS...WILL BE THE MAIN IMPACT FOR THE EASTERN 
PORTION OF THE WESTERN CARIBBEAN...AND FOR MUCH OF THE CENTRAL 
CARIBBEAN DURING THE NEXT SEVERAL DAYS. 

SOUTHWEST N ATLC...
THE PRESSURE GRADIENT BETWEEN A RIDGE OF HIGH PRESSURE OVER THE 
NORTHERN PART OF THE AREA AND LOW PRESSURE OVER THE WESTERN 
CARIBBEAN IS MAINTAINING FRESH NE TO E WINDS ACROSS THE SW PART 
OF THE AREA AS DEPICTED BY THE LATEST ASCAT PASS. THIS HIGH 
PRESSURE WILL SHIFT E SUN EVENING AND INTO MON AND TUE AS LOW 
PRES MOVES OFF THE MID-ATLANTIC COAST. THIS WILL WEAKEN THE PRES 
GRADIENT AND CORRESPONDING WINDS OVER THE SW PORTION OF THE AREA 
DURING THIS PERIOD.

WARNINGS...

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER AL