000
AGXX40 KNHC 220701
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
200 AM EST MON JAN 22 2007

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

UPPER LEVELS...
VERY LARGE RIDGE CENTERED OVER ANTILLES HAS ANTICYCLONIC FLOW 
COVERING THE ENTIRE FORECAST AREA...GULF OF MEXICO...CARIBBEAN 
SEA AND SW N ATLC.  SYSTEM MAINTAINS VERY DRY CONDITIONS ALOFT 
THROUGH MOST OF IT DOMAIN EXCEPT NW HALF OF GULF.  RIDGE 
FORECAST TO REMAIN WELL ANCHORED THROUGH FORECAST PERIOD WITH 
UPSTREAM DEEP LAYER HIGH AMPLITUDE TROUGH RIDING ITS BACKSIDE
NE DUE TO ITS INABILITY TO DISLODGE RIDGE.   

SURFACE...
HIGH PRES CENTERED OVER N ATLC FORCED EWD BY APPROACHING WEAK 
COLD FRONT NOW OVER NW GULF OF MEXICO TIGHTENING GRADIENT AHEAD 
OF FRONT WITH STRONG SLY FLOW ALONG FLORIDA ATLC COAST.  COLD 
FRONT LAYS E-W ALONG 28N-29N TUE EXTENDING FROM 31N65W ACROSS N 
FLORIDA TO 25N97W.  HIGH PRES BUILDING OVER TEXAS WITH STRONG 
NLY WINDS OVER W GULF POSSIBLY REACHING GALE FORCE LATE WED.  
STRONG WINDS IN ATLC CONFINED TO N OF 26N. 

ATLC DEVELOPING LOW PRES OFF GEORGIA COAST INCREASE WLY WINDS 
POSSIBLY REACHING GALE FORCE EXTREME NE CORNER OF BASIN THU AND
MOVING E OF 65W THU NIGHT.

STRENGTH OF ATLC RIDGE CONTINUE PRODUCING STRONG TRADES ACROSS 
MOST OF CARIBBEAN SEA.  LOW PRES 1005 MB OVER W COLOMBIA 
TIGHTENS GRADIENT MAINTAINING 25 TO 30 KT ALONG ITS COASTAL 
WATERS.  LOW PRES 1010 MB WEAKENS LATE THU AND FRI ALLOWING 
WINDS TO DIMINISH THROUGH FRI.
 
WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER WALLY BARNES