000
AGXX40 KNHC 170449
MIMATS

MARINE WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 
1250 AM EDT MON APR 17 2006

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

A LONGWAVE TROUGH IS ANCHORED OFF THE EASTERN SEABOARD OF THE 
CONUS WITH MEAN AXIS ROUGHLY ALONG 75W. AN UPPER ANTICYCLONE IS 
NEAR 20N90W WITH A SHORTWAVE RIDGE EXTENDING N OVER THE CENTRAL 
GULF OF MEXICO TO A FLAT CREST OVER THE S-CENTRAL CONUS ROUGHLY 
ALONG 35N TO THE E OF 100W. A DEEP LAYERED CYCLONE NEAR 42N63W 
WILL ROTATE A SHORTWAVE TROUGH E ACROSS THIS RIDGE AND SPILL IT 
SE INTO THE SW ATLC ZONE AROUND SUNRISE TUE. THE ASSOCIATED 
SURFACE FRONT WILL GET A GOOD PUSH S TO ALONG 24N WHERE IT WILL 
STALL FROM THE CENTRAL BAHAMAS TO N FL ON WED AS HIGH PRES OVER 
THE E GULF OF MEXICO WILL BLOCK THE FRONT FROM ENTERING ALL 
EXCEPT THE EXTREME EASTERN GULF WATERS.
 
ANOTHER SHORTWAVE WILL MOVE E ACROSS THE SE CONUS ON WED...AS 
THE SHORTWAVE RIDGE DISSOLVES...AND JUST SLIP INTO THE GULF OF 
MEXICO NORTHERN COASTAL PLAINS...BUT DEFECTIVELY PULL THE 
REMNANTS OF THE INITIAL FRONT N ALONG THE E COAST OF FL THU 
NIGHT AND FRI. WEAK FRONTAL GENESIS IS POSSIBLE ALONG THIS 
INITIAL BOUNDARY NEAR 30N79W THU NIGHT INTO FRI AND BEARS 
WATCHING.  

EASTERLY TRADES IN THE CARIBBEAN AND TROPICAL ATLANTIC WILL BE 
WEAKER THAN NORMAL TROUGH PERIOD.
       
WARNINGS...

ATLANTIC...
NONE.

CARIBBEAN...
NONE.

GULF OF MEXICO...
NONE.

FORECASTER NELSON