000
AGXX40 KNHC 221900
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 ENJOYS LIGHT 
TO MODERATE E-SE BREEZE.  TROPICAL WAVE APPROACHING YUCATAN 
PASSAGE EXITS INTO BAY OF CAMPECHE FRI NIGHT OR EARLY SAT MAY BE 
INTERACTING WITH UPPER LEVEL CYCLONE PRESENTLY OVER CENTRAL CUBA 
WITH INCREASE IN CLOUDINESS AND CONVECTION BUT LITTLE IN THE WAY 
OF INCREASING WINDS OR BUILDING SEAS.

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 LATE SAT OR EARLY 
SUN.  TIGHT PRES GRADIENT BETWEEN THESE FEATURES TIGHTENS 
GRADIENT TO CAUSE FRESH TO STRONG WINDS IN SE PORTION OF BASIN.
WAVE WEATHER ALSO ENHANCED BY UPPER LEVEL DIVERGENT PATTERN 
INTENSIFYING CONVECTION.  ALTHOUGH NO ORGANIZATION IS EXPECTED 
...WAVE IS MONITORED CLOSELY FOR SIGNS OF FURTHER STRENGTHENING.

CARIBBEAN SEA AND TROPICAL N ATLC W OF 55W... 
ATL 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 AND NOT EXPECTED TO 
BOUNCE BACK UNTIL BEYOND FORECAST PERIOD.

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 WALLY BARNES