000
AGXX40 KNHC 161739
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT SUN MAY 16 2010

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

GULF OF MEXICO...
RIDGE EXTENDS ALONG 30N E OF 90W RELAXING PRES GRADIENT AND 
DIMINISHING WINDS THROUGH BASIN TO A LIGHT TO MODERATE BREEZE 
EXCEPT A FRESH BREEZE ALONG STRAITS OF FLORIDA.  WEAK COLD FRONT 
BRUSHES WATERS N OF 27N E OD 90W BEFORE LIFTING NE OUT OF AREA 
TUE ALLOWING HIGH PRES RIDGE TO REBUILD ACROSS NORTHERN WATERS 
THU.

SW N ATLC...
HIGH PRES RIDGE ALONG 28N MAINTAINS FRESH EASTERLY BREEZE S OF 
26N WHILE LIGHTER WINDS ELSEWHERE N OF 26N.  FUNNELING OF 
EASTERLY FLOW OVER STRAITS OF FLORIDA INCREASE POSSIBILITY OF 
HIGHER GUST AND STEEPER SEAS AS GULFSTREAM CURRENT OPPOSES WIND 
DIRECTION DIRECTLY.  SOUTHERLY RETURN FLOW INCREASES TUE AND WED 
AS RIDGE MOVES E IN RESPONSE TO WEAK COLD FRONT MOVING OFF COAST 
FROM MID ATLC SEABOARD TO NORTHERN FLORIDA.  WIND SPEEDS 
DIMINISH ELSEWHERE AS PRES GRADIENT RELAXES WITH RIDGE EASTWARD 
DRIFT.  MODEL GUIDANCE UNANIMOUSLY AGREE IN SOLUTION WITH MINOR 
DIFFERENCES IN WIND SPEEDS.  
 
CARIBBEAN AND TROPICAL N ATLC... 
ATLC HIGH PRES COMBINES WITH LOWER PRES OVER COLOMBIA TO TIGHTEN 
GRADIENT AND MAINTAIN STRONG EASTERLY FLOW MOSTLY IN CENTRAL 
CARIBBEAN...68W-78W...THIS AFTERNOON AND TONIGHT.  WINDS SLOWLY 
DIMINISH TO A MODERATE BREEZE AS RIDGE DRIFT EASTWARD...BUT 
RETURN TO STRONG LATE IN FORECAST PERIOD AS TROPICAL WAVE NOW 
ALONG 62W S OF 10N MOVES INTO SOUTHERN WATERS.  SCATTERED TSTMS 
ASSOCIATED WITH WAVE NOW ACROSS TROPICAL ATLC ZONE S OF 12N.     
WHILE MODEL GUIDANCE DISAGREES WITH TIMING AND POSITION OF 
TROPICAL WAVE...BUT THEY ALL BRING IT W-NW INTO BASIN S OF 14N 
WEDN AND THU. 

WARNINGS...
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER WALLY BARNES