000
AGXX40 KNHC 130737
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
230 AM EDT SUN APR 13 2008

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

GULF OF MEXICO...
COLD FRONT STALLED FROM N FLORIDA TO BAY OF CAMPECHE WAITING FOR 
SECONDARY COLD AIR SURGE...NOW JUST NW OF IT...TO SWEEP SE AND 
MERGE THEN REACH FROM SW FL TO YUCATAN PENINSULA LATER TODAY 
THEN CONTINUE SE OF AREA TONIGHT.  STRONG N WINDS BEHIND COLD 
AIR SURGE EXPECTED TO REACH MINIMAL GALE FORCE BRIEFLY OVER SW 
GULF ZONE TODAY THEN QUICKLY DIMINISH BY TONIGHT.  ELSEWHERE N 
WINDS DIMINISH OVER NW GULF WATERS TONIGHT BECOMING LIGHT/ 
VARIABLE ALONG RIDGE AXIS PUSHING E INTO NW WATERS ALONG 28N.  
SURFACE HIGH RACES E ACROSS SE CONUS N OF AREA TURNING WINDS TO 
SE OVER ALL GULF WATERS WED AND INCREASING WED NIGHT AND THU 
ALONG SRN AND WRN PERIPHERY OF GULF.

SW N ATLC...
LINGERING SWELLS OVER WATERS S OF 25N E OF 70W.  SW RETURN FLOW 
INCREASES OVER NW CORNER AS NEW COLD FRONT GETS OFF N FLORIDA 
COAST TODAY.  SECONDARY COLD SURGE OVER SE CONUS EXPECTED TO 
SWEEP SE OFF CONUS MON AND REINFORCE WEAKENING NW POST FRONTAL 
FLOW AND PUSH SLOWING FRONT OVER CENTRAL WATERS TO E OF 65W 
THU.  GLOBAL MODELS HAVE SEAS BUILDING TO 13 FT AS N SWELLS 
INTRUDE INTO BASIN TUE. 

CARIBBEAN AND TROPICAL NORTH ATLANTIC...
WINDS ALONG COAST OF COLOMBIA HAVE INCREASED AS LOW PRES 1008 MB 
SITS OVER THE MAINLAND TIGHTENING GRADIENT S OF 15N FROM 
70W-80W.  ELSEWHERE...LIGHTER WINDS W OF 80W EXCEPT OVER GULF OF 
HONDURAS WHERE WIND CONVERGENCE COMBINES WITH WEAK TROUGH TO 
REACH 20 KT.  SUBTROPICAL RIDGE REBUILDS OVER SW N ATLC AND 
TRPCL ATLC WITH INCREASE IN WIND AND SEAS THROUGH THU.  COLD 
FRONT ENTERS YUCATAN CHANNEL LATE TODAY WITH N WINDS INCREASING 
AND SEAS BUILDING TO 8 FT W OF 84W.

WARNINGS...

ATLC...
NONE. 

CARIBBEAN...
NONE.

GULF OF MEXICO...
GMZ082...GALE CONDITIONS S OF 23N W OF 94W...

FORECASTER WALLY BARNES