000
AGXX40 KNHC 071619
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
12O0 PM EDT SAT APR 7 2007

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

A COLD FRONT EXTENDING FROM BERMUDA THROUGH THE WINDWARD PASSAGE 
TO GULF OF HONDURAS WILL CONTINUE EASTWARD STALLING FROM 30N55W 
TO HISPANIOLA AND BECOMING DIFFUSE TO NE NICARAGUA SUN INTO MON 
WITH ITS REMNANTS FINALLY WASHING OUT TUE. A SECONDARY COLD 
SURGE MOVES E THROUGH THE NORTHERN SW ATLC WATERS MON AND TUE 
BECOMING STATIONARY E TO W ALONG 29N SUNRISE WED AS A STRONGER 
COLD FRONT MOVES OFF SE US COAST THU. EXTENDED GUIDANCE SUGGESTS 
THIS FRONT WILL REACH PSN FROM BERMUDA ACROSS SE BAHAMAS INTO NW 
CARIBBEAN AROUND SUNRISE FRI.

A SECONDARY COLD SURGE OVER THE NORTHERN GULF OF MEXICO THIS 
MORNING ACCOMPANIED BY NLY 20 TO 25 KT. RETURN FLOW TROUGH SETS 
UP OVER W COAST LATER TODAY WITH ALL GUIDANCE SUGGESTING LOW 
PRES DEVELOPMENT JUST E OF BRO TX TONIGHT. MODEL CONSENSUS IS 
THAT LOW PRES REMAINS STNR THROUGH MON DISSIPATING MON NIGHT. 
GRADIENT EXPECTED TO SUPPORT 20 TO 30 KT OVER NW SEMICIRCLE OF 
LOW AND 20 TO 25 KT OVER NE GULF WATERS N OF A TROUGH THAT WILL 
LIE W TO E ALONG ABOUT 28N. ANOTHER TROUGH WILL EXTEND S FROM 
LOW ALONG 95W WITH NW WINDS 20 TO 30 KT W OF THE TROUGH. BY TUE 
SLY FLOW RETURNS ALL GULF WATERS INCREASING TO 20-25 KT IN 
ADVANCE OF NEXT COLD FRONT OFFSHORE TX LATE WED REACHING CENTRAL 
GULF WATERS LATE THU.  

NLY WINDS NW CARIBBEAN WILL DIMINISH SUN AS ELY TRADES RESUME 
ALL TROPICAL WATERS AND CONTINUE THROUGH THU EXCEPT LOW LEVEL  
FLOW BECOMES SE OVER NW CARIBBEAN WED INTO THU AS FRONT TRACKS 
SE OVER GULF OF MEXICO.    

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER NELSON