000
AGXX40 KNHC 240634
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
235 AM EDT TUE APR 24 2007

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

WEAKENING FRONTAL TROUGH EXTENDS FROM 25N55W ACROSS US/UK VIRGIN 
ISLANDS TO THE SW CARIBBEAN NEAR 11N78W. THIS BOUNDARY LIKELY TO 
SLOWLY WEAKEN THROUGH REMAINDER FORECAST PERIOD AS HIGH PRES 
OVER THE NORTHERN WATERS NOW EXPECTED TO CHANGE LITTLE THROUGH 
EXTENDED PERIOD. PLENTY OF UPPER SUPPORT SO STILL EXPECTING 
FRONTAL WAVE LOW PRES DEVELOPMENT NEAR 24N55W VERY SOON WITH THE 
LOW PRES RACING NE OF 31N TONIGHT. 

HIGH PRES NEAR 32N70W HAS RIDGE EXTENDING W ACROSS NORTHERN GULF 
COASTAL PLAINS. THIS HIGH PRES NOW EXPECTED TO MEANDER IN 
ROUGHLY THE SAME AREA THROUGH SAT. THE RIDGE WILL WEAKEN OVER 
THE W GULF OF MEXICO LATE WED IN ADVANCE OF WEAK COLD FRONT 
MOVING OFF TX COAST WED NIGHT. NO SURPRISE THAT THE GFS SOLUTION 
IS NOT AS AGGRESSIVE IN TONIGHT RUN AND NOW ONLY MOVES THIS 
FRONT SLIGHTLY OFFSHORE BEFORE STALLING IT. 
  
WITH RIDGE ACROSS NORTHERN WATERS EXPECT ELY WINDS IN 15-20 KT 
ACROSS ALL WATERS S OF 25N EXCEPT SURGES TO 25 KT ALONG N 
COLOMBIAN COAST. NW WINDS IN 10-15 KT RANGE INITIALLY BEHIND 
COLD FRONT NW GULF WED NIGHT...BUT QUICKLY VEER TO E 10 KT AS 
FRONT MOVES BACK W WITH RIDGE BUILDING W TO TX COAST SAT.

WARNINGS...
ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER NELSON