000
AGXX40 KNHC 191751
MIMATS

MARINE WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT WED MAY 19 2010

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

WEAK RIDGE ACROSS THE NORTHERN GULF OF MEXICO WILL STRENGTHEN 
SOME TONIGHT AND SLY WINDS WILL INCREASE OF THE NW GULF OF 
MEXICO TONIGHT. THE RIDGE ONCE AGAIN WEAKENS FRI WINDS WILL BE 
MOSTLY LIGHT ACROSS THE ENTIRE AREA. E WINDS MAY INCREASE TO 20 
KT IN THE STRAITS OF FLORIDA AS LOW PRES IS EXPECTED TO DEVELOP 
OVER THE BAHAMAS FRI NIGHT AND SAT. LOWER PRES OVER THE ATLC 
COMBINED WITH HIGH PRES ALONG THE FLORIDA PANHANDLE WILL 
CONTINUE 20 KT E WINDS ACROSS THE STRAITS OF FLORIDA THROUGH 
SUN. LOW MOVES NE AND THE WINDS GRADUALLY DECREASE MON.

ATLC TROUGH HAS DEVELOPED OVER THE SOUTHERN BAHAMAS WILL DRIFT W.
WEAK LOW PRES IS FORECAST TO DEVELOP ALONG THE TROUGH FRI THIS 
COMBINED WITH THE RIDGE TO THE E WILL INCREASE WINDS TO 20-25 KT 
OVER THE E SEMICIRCLE OF THE LOW. THE LATEST MODEL RUNS INDICATE 
THAT THE LOW WILL DEVELOP FURTHER TO THE W THEN PREVIOUS RUNS. 
THE LOW WILL THEN MEANDER ACROSS THE BAHAMAS THROUGH SAT THEN 
MOVE TO THE NE ON SUN AND MON AND WEAKEN WITH DECREASING WINDS
ACROSS THE AREA.

WITH ATLC RIDGE TO THE NE AND LOW PRES OVER COLOMBIA WILL 
CONTINUE TO SUPPORT TRADES IN THE 20-25 KT RANGE ACROSS THE S 
CENTRAL CARIBBEAN THROUGH FRI. WINDS WILL DECREASE LATE FRI AS 
THE PRES GRADIENT WEAKENS IN RESPONSE TO LOW PRES DEVELOPING 
OVER THE BAHAMAS WITH DECREASING WINDS. THE GRADIENT WILL WEAKEN 
FURTHER AND WINDS WILL DECREASE TO LESS THAN 20 KT ACROSS THE 
ENTIRE CARIBBEAN SAT THROUGH MON.

WARNINGS...
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS