000
AGXX40 KNHC 210450
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
100 AM THU SEP 21 2006

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

COLD FRONT IN THE GULF OF MEXICO CURRENTLY EXTENDS FROM SW 
FLORIDA TO 26N86W THEN STATIONARY TO 24N96W. THE FRONT WILL 
BECOME DIFFUSE BY THIS AFTERNOON. HIGH PRES WILL BUILD ACROSS 
THE AREA TODAY...WITH INCREASING RETURN SLY FLOW TO 20 KT OVER 
THE WESTERN GULF TONIGHT THROUGH SAT. THE NEXT COLD FRONT WILL 
MOVE OFF THE TEXAS COAST LATE SUN...AND EXTEND FROM THE FLORIDA 
BIG BEND TO THE MEXICAN COAST NEAR 22N97W MON.

HURRICANE HELENE CENTERED WELL E OF THE AREA WILL PRODUCE SOME 
LARGE SWELLS ACROSS THE E PORTION OF THE AREA THROUGH FRI THEN 
SUBSIDE OVER THE WEEKEND AS THE STORM STARTS MOVING FURTHER TO 
THE E. A COLD FRONT EXTENDS FROM 31N70W TO S FLORIDA WILL MOVE 
TO 31N67W TO 25N77W LATER TODAY THEN BECOME DIFFUSE LATER 
TONIGHT. WEAK RIDGE WILL BUILD N OF THE AREA FRI THROUGH SUN
THEN MOVE E AS THE NEXT CODL FRONT MOVES OFF THE GEORGIA COAST 
EARLY MON.

THE FRONTAL BOUNDARY ACROSS THE GULF OF MEXICO AND ATLC HAS 
WEAKEND THE PRESSURE GRADIENT IN THE CARIBBEAN. TRADES ARE 
MOSTLY BELOW 20 KT BUT WILL INCREASE TONIGHT AND FRI AS THE 
RIDGE TO THE N BUILDS...WITH THE STRONGEST WINDS IN THE TYPICAL 
REGION ALONG THE COAST OF COLUMBIA AND VENEZUELA. THE ATLC 
RIDGE MOVES E SUN AND MON WITH TRADES ONCE AGAIN DECREASING.

WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE. 

GULF OF MEXICO...
NONE.

FORECASTER DGS