000
AGXX40 KNHC 091830
MIMATS

MARINE WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
230 PM EDT SAT APR 9 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...
A HIGH PRES RIDGE EXTENDS FROM THE ATLC ACROSS N FLORIDA INTO THE
NORTHERN GULF COAST WITH WEAK HIGH PRES CENTERS RUNNING ALONG THE
RIDGE AXIS OVER THE NE GULF WATERS. SCATTEROMETER DATA SHOWS SE 
WINDS 15-20 KT W OF 90W...EXCEPT FOR AN AREA OF ENHANCED WINDS
IN THE BAY OF CAMPECHE OVER 20 KT. LIGHT AND VARIABLE WINDS ARE 
INDICATED NEAR THE RIDGE AXIS. LITTLE CHANGE IS EXPECTED THIS 
WEEKEND. A WEAK COLD FRONT WILL REACH THE TEXAS COAST MON MORNING
AND THEN STALL AFTER IT REACHES THE MISSISSIPPI DELTA. GFS MODEL 
GUIDANCE INDICATES A LOW WILL FORM AT THE S END OF THE FRONT IN 
THE BAY OF CAMPECHE MON AND PERSIST AS A WEAK CIRCULATION THROUGH
TUE NIGHT. HIGH PRES BUILDS TUE AND WED AS THE FRONT DISSIPATES.

SOUTHWEST N ATLC W OF 55W...
A HIGH PRES RIDGE EXTENDING ALONG 29N W OF 65W WILL SHIFT S AND 
BECOME ORIENTATED FROM W TO E ALONG 27N TONIGHT AND SUN. A WEAK 
LOW PRES AND ASSOCIATED COLD FRONT WILL MOVE INTO THE NE PORTION 
OF THE AREA TONIGHT. THE LOW WILL WEAKEN AND BECOME A TROUGH AS 
IT MOVES SOUTHWARD SUN AND SUN NIGHT...THEN STALL AND BEGIN TO 
DISSIPATE MON THROUGH TUE AS HIGH PRES BUILDS BOTH E AND W OF 
THE TROUGH. THE PRES GRADIENT BETWEEN THE TROUGH AND HIGH PRES 
RIDGE FROM BERMUDA TO S FLORIDA WILL INDUCE FRESH NE WINDS N OF 
30N BETWEEN 55W AND 65W MON NIGHT AND TUE. THE RIDGE WILL WEAKEN 
WED AS A WEAK COLD FRONT MOVES OFF THE GA COAST.
 
CARIBBEAN SEA AND TROPICAL N ATLC...
TRADE WIND SHOWERS CONTINUE MOVING THROUGH THE CENTRAL/EASTERN 
CARIBBEAN AND PAST JAMAICA. NE-E TRADES WILL CONTINUE AT 20-25 
KT OVER S CENTRAL AND SW CARIBBEAN TONIGHT THEN DIMINISH TO 20 
KT SUN...FURTHER DIMINISHING TO 15-20 KT TUE THROUGH WED. SEAS 
WILL SUBSIDE BELOW A MAX OF 10 FT OFF THE COAST OF COLOMBIA BY 
THIS EVENING...AND WILL STEADILY DIMINISH ACROSS THE BASIN OVER 
THE NEXT SEVERAL DAYS. WW3 WAVE MODEL GUIDANCE SHOWS 4-6 FT SEAS 
FOR ALL OF THE CARIBBEAN SEA BY TUE...WITH LITTLE CHANGE WED.

WARNINGS..

ATLC...
.NONE.

CARIBBEAN...
.NONE.

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER MUNDELL