000
AGXX40 KNHC 131743
MIMATS

MARINE WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT FRI JUL 13 2012

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

GULF OF MEXICO...
SURFACE TROUGH EXTENDS FROM THE FLORIDA BIG BEND TO 1015 MB LOW 
NEAR 28N84W TO 27N95W. THE TROUGH WILL MOVE NW THROUGH SAT AS 
HIGH PRES RIDGE N OF THE AREA MOVE S INTO THE NE GULF. THE PRES 
PATTERN WILL REMAIN WEAK THROUGH THE WEEKEND INTO THE MIDDLE OF 
NEXT WEEK...EXCEPT FOR SE WINDS INCREASING TO 15 KT ACROSS THE 
SW GULF WED.

SW N ATLC S OF 31N W OF 65W...
WEAK HIGH N OF THE AREA THROUGH SUN THEN MOVES S INTO THE AREA 
MON WITH A HIGH PRES CENTER DEVELOPING NEAR 28N66W. THE HIGH 
THEN MEANDERS ACROSS THE NE PORTION OF THE AREA THROUGH WED.
TROUGH W OF THE AREA WILL MOVE TO 29N65W TO 24N70W TONIGHT AND 
CONTINUE TO MOVE W BEFORE BECOMING DIFFUSE LATE SAT. ELY WINDS 
15 KT S OF 20N WITH LIGHT WINDS 10 KT OR LESS N OF 25N. ELY 
SWELL TO 7 FT E OF 70W WILL SUBSIDE LATE SUN.
 
CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W...
HIGH PRES RIDGE N OF THE AREA WILL MAINTAIN ELY TRADES IN THE 
15-20 KT RANGE IN THE S CENTRAL CARIBBEAN THROUGH SAT...THEN
THE RIDGE STRENGTHENS ON SUN THE WINDS INCREASE TO 20-25 KT FROM 
11N-17N BETWEEN 70W-80W WITH SEAS BUILDING 8-10 FT. THE SEAS 
CONTINUE TO BUILD TO 13 FT BY WED. TROPICAL WAVE WILL REACH 55W 
TONIGHT AND MOVE INTO THE EASTERN CARIBBEAN LATE SAT INTO SUN 
AND THE CENTRAL CARIBBEAN MON AND TUE AND THE W CARIBBEAN WED. 

NOTE...GRIDDED MARINE OUTPUT IS AVAILABLE AT 
WWW.NHC.NOAA.GOV/TAFB/GRIDDED_MARINE

GULF OF MEXICO...
.NONE.

CARIBBEAN SEA...
.NONE.

SW N ATLANTIC...
.NONE.
    
FOR ADDITIONAL INFORMATION PLEASE VISIT
WWW.HURRICANES.GOV/MARINE

$$
FORECASTER DGS