000
AGXX40 KNHC 240618
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
120 AM EST SAT JAN 24 2009

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

GULF OF MEXICO...
HIGH PRES CENTERED OVER CENTRAL FLORIDA IS PROVIDING MAINLY 
LIGHT FLOW OVER THE E AND MIDDLE WATERS. SLY RETURN FLOW 
INCREASES SOME OVER THE W WATERS...WHERE LATEST BUOY OBS ARE 
15-20 KT. THIS FLOW IS EXPECTED TO SHIFT SW AND SLACKEN AS A 
COLD FRONT ENTERS THE NW WATERS LATE MORNING-MIDDAY. N/NE 15-20 
KT FLOW IS EXPECTED N OF THE FRONT TODAY AND TONIGHT. HOWEVER BY 
SUN...THE FRONT WILL LOSE ITS UPPER SUPPORT ALLOWING IT TO STALL 
AND WEAKEN OVER THE N WATERS. CONSEQUENTLY WINDS WILL DIMINISH 
TO 10 KT ON BOTH SIDES OF THE BOUNDARY. THE FRONT LIFTS BACK N 
OF THE AREA MON AND HIGH PRES SETTLES BACK OVER THE E GULF TUE 
AND WED.

CARIBBEAN AND TROPICAL N ATLC...
A COUPLE OF WEAK PERTURBATIONS ARE OVER THE REGION THIS MORNING. 
ONE OF THESE IS THE REMNANTS OF A FRONTAL BOUNDARY OVER THE 
CENTRAL CARIBBEAN. THIS FEATURE IS ONLY PRODUCING A NE/E 
WIND SHIFT AND A COUPLE OF SHOWERS JUST S OF HISPANIOLA. A 
LOW-LEVEL VORTICITY MAX IS MOVING THROUGH THE LESSER ANTILLES 
LIKELY CAUSING A BRIEF ELY WIND SURGE IN ITS VICINITY. 
OTHERWISE...HIGH PRES OVER THE W ATLC IS PRODUCING N-NE 15-20 KT 
OVER THE W CARIB...EXCEPT TO 25 KT NEAR THE COAST OF COLOMBIA... 
AND SIMILAR MAGNITUDE NE-E FLOW OVER THE E CARIBBEAN AND TROP N 
ATLC. LITTLE CHANGE IS EXPECTED IN THIS REGIME OVER THE NEXT 
SEVERAL DAYS.

SW N ATLC...
A NE-SW HIGH PRES RIDGE IS SET UP OVER THE N WATERS PROVIDING 
MAINLY LIGHT WINDS OVER MUCH OF THE AREA. THE EXCEPTION IS S OF 
27N E OF 72W WHERE N/NE 20-25 KT WINDS ARE BLOWING TO THE W OF  
A STALLED FRONT OVER THE EXTREME SE WATERS. THIS STRONG FLOW IS 
POOLING LOW-LEVEL MOISTURE AND CAUSING UPSLOPE CONDITIONS OVER 
THE ISLAND OF HISPANIOLA...LIKELY CAUSING AREAS OF HEAVY YET LOW 
TOPPED RAINFALL. THIS FRONT IS EXPECTED TO DRIFT W AND SLOWLY 
WEAKEN OVER THE NEXT FEW DAYS. MEANWHILE...ANOTHER FRONT WILL 
STALL ACROSS THE FAR N WATERS SAT NIGHT AND SUN BEFORE BECOMING 
REINFORCED CAUSING IT TO SLIDE THROUGH THE N WATERS MON AND TUE. 
HIGH PRES IS EXPECTED TO ONCE AGAIN BECOME ESTABLISHED OVER THE 
REGION BY MID-WEEK. NE TO E 10-12 SEC WIND SWELL IS EXPECTED TO 
BE THE PRIMARY WAVE COMPONENT FOR MUCH OF THE AREA E OF THE 
BAHAMAS OVER THE NEXT SEVERAL DAYS.

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER CANGIALOSI. TROPICAL PREDICTION CENTER.