000
AGXX40 KNHC 190730
MIMATS

MARINE WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
230 AM EST TUE FEB 19 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...
ANTICYCLONIC FLOW PREVAILS ACROSS THE REGION. SURFACE OBS AND 
ASCAT SCATTEROMETER PASS AT 0300 UTC SHOW FRESH TO STRONG SLY  
WINDS IN THE CENTRAL GULF BETWEEN 85W AND 93W. SOUTHERN PORTION 
OF A COLD FRONT ASSOCIATED WITH LOW PRES SYSTEM MOVING THROUGH 
THE GREAT LAKES WILL REACH THE TEXAS COAST LATER THIS MORNING 
THEN FLATTEN OUT AND BECOME STATIONARY ALONG 26N IN THE NORTHERN 
GULF THROUGH WED NIGHT. WINDS ASSOCIATED WITH THE FRONT WILL BE 
GENERALLY 20 KT OR LESS...WITH SEAS EXPECTED TO BE 5-7 FT N OF 
THE FRONT AND 3-5 FT S OF THE FRONT. INTENSE LOW PRES INDICATED 
FROM GFS MODEL LIKELY TO DEVELOP NEAR OKLAHOMA PANHANDLE THU... 
WHICH WILL INTENSIFY THE PRES GRADIENT OVER THE NW GULF AND 
PRODUCE STRONG SE WINDS FEEDING INTO QUASI-STATIONARY FRONT 
ALONG THE TEXAS COAST. FRONT WILL DRIFT SE INTO NW WATERS FRI 
AND SAT...WITH WINDS DIMINISHING TO 15-20 KT OR LESS AND SEAS 
REMAINING 5-7 FT OVER LARGE PORTION OF AREA N OF 22N W OF 87W. 

CARIBBEAN SEA AND TROPICAL N ATLC S OF 22N W OF 55W...
SHEAR LINE EXTENDING FROM WINDWARD PASSAGE TO HONDURAS/NICARAGUA 
BORDER WILL REMAIN NEARLY STATIONARY TODAY THEN BECOME DIFFUSE 
WED. FRESH TO STRONG NE WINDS THROUGH THE WINDWARD PASSAGE ARE 
GENERATING 8-9 FT COMBINED SEAS. EXPANDING AREA OF 25-30 KT WINDS
NEAR COAST OF COLOMBIA PRODUCING 9-11 FT SEAS. HIGH PRES N OF 
AREA WILL SHIFT EASTWARD ALONG 32N TODAY AHEAD OF A STRONG LOW 
PRES SYSTEM MOVING THROUGH THE EASTERN U.S. WHILE LOW PRES OVER 
N COLOMBIA WILL SUPPORT TIGHTER PRES GRADIENT ACROSS THE CENTRAL 
CARIBBEAN THROUGH WED NIGHT...WITH WINDS INCREASING TO NEAR-GALE 
GREATER THAN 30 KT AND SEAS BUILDING TO 13-15 FT NEAR COLOMBIA 
COAST. WINDS AND SEAS WILL GRADUALLY DIMINISH THU THROUGH SAT AS 
HIGH N OF THE AREA WEAKENS AND SHIFTS EASTWARD INTO CENTRAL ATLC.
  
SW N ATLC S OF 31N W OF 55W...
WEAK COLD FRONT FROM 31N51W TO WINDWARD PASSAGE WILL CONTINUE ITS
TRANSITION TO A SHEAR LINE ACROSS FAR SE WATERS TODAY THEN BECOME
DIFFUSE WED AND THU. LARGE AREA OF NW SWELL WITH SEAS TO 12-14 FT
OVER NE PART OF REGION. HIGH PRES NEAR SOUTH CAROLINA WILL SHIFT
E ALONG 32N INTO THE CENTRAL ATLC THROUGH WED NIGHT...AHEAD OF A 
COLD FRONT THAT SLIDES ACROSS NORTHERN WATERS WITH LITTLE EFFECT 
OTHER THAN WIND SHIFT FROM SW TO NW. THE FRONT WILL REACH NE 
COAST OF FLORIDA TONIGHT WITH FRESH TO STRONG S-SW WINDS AHEAD 
OF FRONT TO 75W. THE FRONT WILL EXTEND FROM 31N75W TO 28N81W 
WED...FROM 31N67W TO 28N70W TO 26N80W WED NIGHT...WEAKEN AND 
BECOME STATIONARY FROM 28N65W TO 26N80W THU...THEN DISSIPATE FRI.


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 MUNDELL