000
AGXX40 KNHC 181912
MIMATS

MARINE WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
215 PM EST MON FEB 18 2013

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...
HIGH PRES OVER GEORGIA SUPPORT MODERATE NE-E BREEZE E OF 90W 
WHILE FRESH TO STRONG SE TO S RETURN FLOW BLOWS OVER WATERS W OF 
90W DUE TO APPROACH OF NEXT COLD FRONT.  TAME 3-5 FT SEAS E OF 
90W GRADUALLY INCREASE TO 5-7 FT FROM 90W TO 95W THEN BUILD TO 
8-9 W OF 95W.  COLD FRONT REACHES SE TEXAS COAST EARLY TUE THEN 
WEAKEN AND STALL ALONG 26N EARLY WED THEN BECOME DIFFUSE LATE 
WED.  STRONG SW WINDS 180 NM AND SEAS TO 8 FT AHEAD OF BOUNDARY 
EXPECTED TO REMAIN N OF 28N WHILE FRESH TO STRONG NE BREEZE WITH 
SEAS 5-7 FT EXPECTED W OF FRONT TUE.  HEALTHY 1027 MB HIGH PRES 
BUILDS BEHIND FRONT LATE WED AND DRIFT E BRINGING STRONG SE 
RETURN FLOW BACK AND SEAS TO 9 FT W OF 88W THU.  WIND AND SEAS 
SUBSIDE FRI AS HIGH PRES ENTERS SW N ATLC REGION. 

CARIBBEAN SEA AND TROPICAL N ATLC S OF 22N W OF 55W...WEAK 
STATIONARY FRONT EXTEND FROM SW HAITI TO OFFSHORE COSTA RICA 
WATERS KEEP TIGHT PRES GRADIENT WITH 1010 MB LOW PRES OVER 
SOUTHERN COLOMBIA.  STRONG NE TO E BREEZE BETWEEN 70W AND FRONT 
BUILD SEAS OFF COAST OF COLOMBIA OVER 10-14 FT BY TONIGHT.  HIGH 
PRES OVER SW N ATLC SHIFT EASTWARD ALONG 32N TUE AND WED AHEAD 
OF NEXT COLD FRONT.  PRES GRADIENT EASES BY THU AS HIGH PRES 
WEAKENS AND MOVES OVER CENTRAL ATLC.
  
SW N ATLC S OF 31N W OF 55W...
COLD FRONT FROM 23N65W TO N HAITI BECOMES STATIONARY TUE THEN 
DIFFUSE WED AND THU.  HIGH PRES 1030 MB BUILDS ALONG 33N AND IS 
FORCED E BY SECOND COLD FRONT APPROACHING NW CORNER OF BASIN TUE 
NIGHT.  SECOND COLD FRONT REACH FROM 31N75W TO 28N81W EARLY WED 
...31N69W TO EASTERN CUBA LATE WED...FROM 29N65W TO WINDWARD 
PASSAGE EARLY THU THEN OUT OF REGION LATE THU NIGHT.

NOTE...GRIDDED MARINE FORECAST IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE

WARNINGS...

GULF OF MEXICO...
.NONE. 

CARIBBEAN SEA AND TROPICAL N ATLC...
.NONE.

SW N ATLC...
.NONE.

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

$$
FORECASTER WALLY BARNES