000
AGXX40 KNHC 220750
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
250 AM EST SAT JAN 22 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...
COLD FRONT CROSSED YUCATAN PENINSULA OUT OF BASIN LAST NIGHT 
LEAVING FRESH TO STRONG N TO NW BREEZE E OF 90W IN ITS WAKE. 
WINDS QUICKLY VEER NE AND E THROUGH SUN AS HIGH PRES 1022 MB 
BUILDS OVER FLORIDA PANHANDLE.  DYNAMIC GUIDANCE SOLUTIONS BRING 
SECOND WEAKER COLD FRONT INTO W GULF ZONES SUN NIGHT USHERING 
ANOTHER ROUND OF FRESH TO STRONG N BREEZE W OF 94W AND SPREADING 
E THROUGH WED.  COLD FRONT REACHES FROM 30N84W TO 24N90W TO 
18N94W EARLY TUE AND E OF GULF TUE NIGHT.
   
CARIBBEAN AND TROPICAL N ATLC...
WEAKENED COLD FRONT ENTERS NW ZONE AND REACH 22N80W TO 15N83W 
LATE SAT NIGHT THEN BECOMES DIFFUSE FROM WINDWARD PASSAGE TO 
10N80W SUN.  PRES GRADIENT FLATTENS AS RIDGE IS FORCED E BY COLD 
FRONT CROSSING SW N ATLC WITH MODERATE TO FRESH E BREEZE OVER E 
HALF OF BASIN AND TRPCL ATLC.  NEW HIGH PRES 1022 MB BUILDS N OF 
AREA MON AND TUE RETURNING FRESH TO STRONG TRADES TO S HALF OF 
CARIBBEAN AS 1005 MB LOW PRES CENTER OVER COLOMBIA SQUEEZES 
GRADIENT FROM 70W-80W...SEAS BUILD TO 11 FT.

SW N ATLC W OF 55W...
COLD FRONT FROM 31N69W TO LOW PRES 1007 MB AT 28N77W THEN TO 
26N80W.  LOW PRES CENTER MOVES NE ALONG FRONTAL BOUNDARY TO 
REACH NEAR 32N76W AND DEEPEN TO 1000 MB THIS AFTERNOON.  VERY 
COLD AIR MOVES INTO SW N ATLC WITH NW GALE FORCE WINDS EXPECTED 
N OF 29N E OF 77W BEHIND COLD FRONT LATE TODAY.  MODEL GUIDANCE  
MUCH IN AGREEMENT WITH THIS SCENARIO IN STRENGTH AND TIMING 
WHILE TRACK MAY BE SLIGHTLY OFF.  COLD FRONT REACH FROM 31N61W 
TO 25N65W TO N HISPANIOLA SUN EFFECTIVELY TAKING GALE FORCE 
WINDS OUTSIDE BASIN.  HIGH PRES 1024 MB BUILDS SE INTO BASIN MON 
WITH MUCH WEAKER COLD FRONT ENTERING SW N ATLC NW CORNER LATE 
TUE AND REACHING 31N61W TO WINDWARD PASSAGE LATE WED.

WARNINGS..

ATLC...
.GALE WARNING N OF 29N FROM E OF 77W...AMZ080. 

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER WALLY BARNES