000
AGXX40 KNHC 091837
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
245 PM EDT SUN MAY 09 2010

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

GULF OF MEXICO...
A FRONTAL SYSTEM EXTENDING FROM CENTRAL FLORIDA TO SOUTH TEXAS 
WILL DISSIPATE LATER THIS AFTERNOON ACROSS THE GULF WATERS WHILE 
DROPPING S ACROSS SOUTH FLORIDA THIS AFTERNOON. STRONG HIGH PRES 
IN TH WAKE OF THE FRONT WILL BUILD SE ACROSS THE REGION. THE 
COMBINATION OF THE HIGH AND LOW PRES OVER TEXAS AND NE MEXICO 
WILL TIGHT THE PRES GRADIENT AND PRODUCE INCREASING WINDS AND 
SEAS ACROSS THE WESTERN AND MIDDLE GULF MON AND SPREAD ACROSS 
EASTERN PORTIONS MON EVENING THROUGH THU. EXPECT SELY WINDS IN 
THE 20 TO 25 KT RANGE ACROSS MUCH OF THE GULF LATE MON THROUGH 
THU WITH BUILDING SEAS TO AROUND 9 FT. THE YUCATAN DIURNAL 
SEABREEZE WILL CONTINUE TO FLARE TO 20-25 KT WITHIN 90-120 NM OF 
THE COAST DURING LATE AFTERNOON AND EARLY NIGHT THROUGH THE 
FORECAST PERIOD.

SW N ATLANTIC S OF 31N W OF 55W...
A COLD FRONT STRETCHING FROM 31N71W TO S FLORIDA THIS AFTERNOON 
WILL WEAKEN FROM 29N65W TO CENTRAL BAHAMAS MON AFTERNOON AND 
MOVE E OF AREA TUE. NLY WINDS OF 15 TO 20 KT AREA NOTED BEHIND 
THE FRONT PER SURFACE DATA. STRONG HIGH PRES WILL FOLLOW THE 
FRONT AND BUILD INTO THE REGION INCREASING WINDS AND SEAS 
PRIMARILY ACROSS THE SOUTHERN WATERS THROUGH THU. WINDS WILL 
INCREASE TO 20-25 KT S OF 24N BY TUE NIGHT-THU...WITH SEAS 
BUILDING 6-8 FT IN NE SWELL E OF THE BAHAMAS AND 5-7 FT LEE OF 
THE BAHAMAS. A WEAK SURFACE TROUGH REMAINS OVER THE SE PORTION 
OF THE SW N ATLC WITH SOME SHOWER ACTIVITY. THIS FEATURE WILL 
GRADUALLY WEAKEN THROUGH MON AS THE AFOREMENTIONED COLD FRONT 
MOVES SE ACROSS THE AREA.

CARIBBEAN SEA AND TROPICAL N ATLC...
HIGH PRES WILL DOMINATE THE SW N ATLC TONIGHT THROUGH THU TO 
GREATLY INCREASE THE PRES GRADIENT ACROSS THE CARIBBEAN AND 
PRODUCE FRESH TO STRONG TRADE WINDS. 20-25 KT NE TO E TRADES 
ACROSS THE SRN CARIB TONIGHT WILL EXPAND N AND NW MON NIGHT AND 
SPILL THROUGH THE WINDWARD PASSAGE AND IN LEE OF CUBA...AND WILL 
LIKELY INCREASE TO AROUND 30 KT OFF THE COAST OF COLOMBIA. WINDS 
AND SEAS ARE EXPECTED TO PICK UP TUE THROUGH THU ACROSS MUCH OF 
THE BASIN. NOAA WAVE WATCH III GUIDANCE INDICATES THAT SEAS WILL 
BUILD TO 8 TO 12 FT ACROSS THE SOUTH CENTRAL CARIBBEAN LATE TUE 
INTO WED. 

A SERIES OF LOW AMPLITUDE TROPICAL WAVES WILL MOVE ACROSS S 
PORTIONS OF THE TROPICAL ATLC OVER THE NEXT FEW DAYS...WITH THE 
FIRST ONE CURRENTLY BRUSHING THE AREA. ENHANCED MOISTURE WITH 
SHOWERS AND TSTMS ARE EXPECTED WITH AND JUST AHEAD OF THESE 
WAVES.

WARNINGS...
ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER GR