000
AGXX40 KNHC 011753
MIMATS

MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT TUE MAY 01 2012

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

GULF OF MEXICO...
A RIDGE EXTENDS WSW FROM N FL TO THE NE MEXICAN COAST. AN 
INVERTED TROUGH IS FROM 27N85W TO THE YUCATAN CHANNEL THE 
NE-E-SE WIND SHIFT ENHANCED TO 20-25 KT N OF 23N EITHER SIDE OF 
TROUGH AXIS. THE TROUGH WILL GRADUALLY WEAKEN THIS EVENING THEN 
MOVE INTO THE NW GULF WED THEN DISSIPATE WED NIGHT. ELY WINDS
TO 20 KT CONTINUE ACROSS THE EASTERN GULF THROUGH WED THEN 
DECREASE ON THU. OTHERWISE E-SE WINDS AT 10-15 KT THROUGHOUT THE 
AREA THU THROUGH SAT THEN HIGH PRES BUILDS OVER THE NE GULF SUN 
WITH MOSTLY LIGHT WINDS.
     
SW N ATLC FROM 19N TO 31N W OF 65W...
WEAK COLD FRONT OVER THE EXTREME NE PORTION WILL SHIFT E OF 65W 
LATER TODAY. AN E-W RIDGE WILL REBUILD ALONG 31N WED THEN WEAKEN 
AGAIN AS A SECOND COLD FRONT BRUSHES THE EXTREME NE PORTION OF 
THE AREA THU MORNING. SURFACE HIGH WILL SHIFT S ACROSS THE 
WESTERN WATERS IN THE WAKE OF THE FRONT WITH MOSTLY LIGHT AND 
VARIABLE ACROSS MOST OF THE AREA GOING INTO THE WEEKEND.

CARIBBEAN SEA AND TROPICAL ATLC S OF 19N W OF 55W...
A BROAD TROUGH OVER THE EXTREME NW CARIBBEAN INTO THE YUCATAN 
CHANNEL WILL MOVE W OF THE AREA LATER THIS AFTERNOON. ELY TRADES 
WILL CONTINUE TO PULSE TO 15-20 KT ACROSS THE CENTRAL CARIBBEAN 
THROUGH THU THEN DIMINISH TO 10-15 KT BY THE END OF THE WEEK 
INTO THE WEEKEND.

NOTE... EFFECTIVE APR 3, 2012 AT 1800 UTC THE OFFSHORE WATERS 
FORECAST ZONES CHANGED FOR THE CARIBBEAN AND SW N ATLANTIC AND 
THE GULF OF MEXICO. ISSUANCE TIME FOR THE GULF OF MEXICO OFFSHORE
WATERS FORECASTS IS REFERENCED TO THE EASTERN TIME ZONE. FOR 
DETAILS SEE WWW.NHC.NOAA.GOV/ABOUTTAFBPROD.SHTML#OWF

GRIDDED MARINE OUTPUT IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE (LOWER CASE).

GULF OF MEXICO...
.NONE.

CARIBBEAN SEA...
.NONE.

ATLANTIC...
.NONE.

    
FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
FORECASTER DGS