000
AGXX40 KNHC 230554
MIMATS

MARINE WEATHER DISCUSSION     
NWS NATIONAL HURRICANE CENTER MIAMI FL
300 PM EDT FRI JUL 22 2011

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

GULF OF MEXICO...
HIGH PRES RIDGE ALONG 27N MAINTAINS LIGHT AND VARIABLE WINDS AND 
SLIGHT SEAS OVER NRN PORTION OF GULF WHILE SRN HALF HAS LIGHT 
TO MODERATE E-SE WINDS AS A TROPICAL WAVE MOVES INTO THE BAY OF 
CAMPECHE TODAY. WINDS ARE FORECAST TO DECREASE MON AS THE 
TROPICAL WAVE MOVES INLAND. RIDGE REMAINS ALONG 27N THROUGH THE 
MIDDLE OF NEXT WEEK WITH LIGHT WINDS ACROSS THE ENTIRE AREA.

SW N ATLC...
HIGH PRES RIDGE ALONG 28N EXPECTED TO DRIFT N TO 29N/30N AS 
STRONG TROPICAL WAVE MOVES ALONG ITS SOUTHERN PERIPHERY.  WAVE 
EXPECTED TO AFFECT EXTREME SE PART OF ZONE THIS EVENING OR EARLY 
SUN. THE TROPICAL WAVE COULD POSSIBLY DEVELOP INTO A TROPICAL 
CYCLONE WITHIN THE NEXT 48 HOURS. THE PRES GRADIENT WILL TIGHTEN 
BETWEEN THE WAVE AND THE RIDGE WITH INCREASING WINDS IN SE 
PORTION OF BASIN. THE WAVE...POSSIBLE TROPICAL CYCLONE...WILL 
MOVE THROUGH THE SE BAHAMAS MON EVENING AND THROUGH THE CENTRAL 
BAHAMAS TUE EVENING

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... 
ATLC HIGH PRES RIDGE AND LOW PRES OVER COLOMBIA PRODUCING STRONG 
WINDS ACROSS MUCH OF AREA...WITH STRONGEST WINDS UP TO 25 KT 
NEAR COAST OF COLOMBIA. PRES GRADIENT WEAKENS AS AFOREMENTIONED 
TROPICAL WAVE CROSSES EASTERN CARIBBEAN THEN THROUGH THE CENTRAL 
CARIBBEAN LATE MON AND THE NW CARIBBEAN TUE.

WARNINGS...

GULF OF MEXICO...
.NONE.
 
SW N ATLC...
.NONE.

CARIBBEAN AND TROPICAL N ATLC...
.NONE.

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

$$
FORECASTER DGS