000
AGXX40 KNHC 211830
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
230 PM EDT WED OCT 21 2009

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

HIGH PRES RIDGE DOMINATES THE GULF OF MEXICO PRODUCING E TO SE 
WINDS OF 20 KT OVER MUCH OF GULF REGION BUT MAINLY OVER THE 
EASTERN HALF OF THE GULF. THE HIGH WILL MOVE E THROUGH FRI AND 
GRADUALLY WEAKEN. AS A RESULT THE WINDS OVER THE WESTERN GULF 
BECOME SLY AND WINDS OVER THE E GULF DECREASE TO 15 KT THU NIGHT 
AS THE HIGH CONTINUES TO MOVE E AND COLD FRONT APPROACH THE 
TEXAS COAST. THE FRONT WILL MOVE SE INTO THE NW GULF THU NIGHT 
AND EXTEDN FROM SE LOUISIANA TO 21N97W FRI AND FROM FLORIDA BIG 
BEND TO THE YUCATAN PENINSULA LATE SAT. SLY WIND WILL BRIEFLY 
INCREASE TO 20 KT N OF 27N AHEAD OF THE FRONT. NLY WINDS OF 
20-25 KT AND SEAS 8 TO 10 FT ARE EXPECTED W OF THE FRONT FRI AND 
SAT THEN DECREASE TO 10-15 KT ON SUN AND MON.

ATLC STATIONARY FRONT FROM 26N65W TO THE WINDWARD PASSAGE. THE
WILL DISSIPATE BY THIS EVENING. NE WINDS OF 20-25 KT AND SEAS TO 
10 FT ARE STILL NOTED W OF THE FRONT. HIGH PRES WILL BUILD 
BEHIND THE FRONT PRODUCING STRONG NE TO E WINDS N OF AROUND 25N 
THROUGH THU THEN DECREASE LATE FRI. ANOTHER COLD FRONT WILL 
APPROACH THE SE U.S. COAST SAT WITH SLY WINDS INCREASING TO 20 
KT N OF 27N W OF 70W SAT. THE FRONT WILL WEAKEN AND EXTEND FROM 
31N77W TO CENTRAL FLORIDA SUN THEN BECOME STATIONARY THEN DRIFT 
N ON MON.

BROAD AREA OF LOW PRESSURE OVER THE SOUTHWESTERN CARIBBEAN IS 
PRODUCING A LARGE AREA OF CLOUDINESS AND SHOWERS. ANY 
DEVELOPMENT OF THIS SYSTEM IS EXPECTED TO BE SLOW TO OCCUR AS IT 
REMAINS NEARLY STATIONARY DURING THE NEXT COUPLE OF DAYS. WINDS 
AND SEAS WILL BE HIGHER NEAR THE TSTMS EMBEDDED IN THIS AREA.  
ELY TRADES HAVE DECREASE TO BELOW 20 KT OVER THE SOUTH-CENTRAL 
CARIBBEAN. THESE CONDITIONS ARE EXPECTED TO PERSIST THROUGH LATE 
THU. TRADES SHOULD INCREASE AGAIN LATE FRI INTO SAT NEAR THE 
COAST OF COLOMBIA AS THE LOW PRES OVER THE SW CARIBBEAN MOVES 
NWD.

WARNINGS...

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

$$
FORECASTER DGS