000
AGXX40 KNHC 210548
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 AM EDT THU OCT 21 2010

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

VERY WEAK PRES PATTERN CONTINUES OVER THE GULF OF MEXICO WITH 
LIGHT WINDS ACROSS THE ENTIRE AREA. LITTLE CHANGE IS EXPECTED  
THROUGH FRI...BUT SLY WINDS WILL INCREASE TO 20-25 KT IN THE NW 
GULF FRI AND SAT NEAR THE COAST OF SRN TEXAS AND NRN MEXICO AS A 
RIDGE OVER THE SE U.S. STRAIGHTENS. ELY WINDS WILL INCREASE OVER 
THE REST OF THE GULF THIS WEEKEND...WITH WINDS IN THE STRAITS OF 
FLORIDA APPROACHING 25 KT AND SEAS  BUILDING TO 8 FT N OF CUBA.
TROPICAL DEPRESSION NINETEEN IN THE NW CARIBBEAN IS FORECAST TO
EVENTUALLY MOVE INTO THE YUCATAN PENINSULA MON EVENING THIS 
COULD INCREASE THE WINDS IN THE EASTERN BAY OF CAMPECHE LATE MON.

ATLC TROUGH EXTENDS NE FROM 31N75W TO THE NRN BAHAMAS. THE 
TROUGH WILL MOVE TO 31N65W TO SE BAHAMAS FRI THEN MOVE E OF THE 
ARE SAT. HIGH PRES BUILDING ACROSS THE NORTHERN PORTION OF THE 
ATLC ZONE ALONG 30N THROUGH TONIGHT WILL INCREASE THE PRES 
GRADIENT ASSOCIATED WITH THIS TROUGH...WITH SW WINDS E OF THE 
TROUGH INCREASING TO 25 KT TODAY AND TONIGHT. THE PRES GRADIENT 
WEAKENS FRI. STRONG HIGH PRES BUILDS N OF 30N THIS WEEKEND 
INCREASING ENE TRADES TO AROUND 20 KT S OF AROUND 27N.  

TROPICAL DEPRESSION NINETEEN CURRENTLY CENTERED NEAR 17.5N 81.1N 
AT 0300 UTC IS FORECAST TO INTENSIFY TO A TROPICAL STORM EARLY 
FRI. THE STORM IS FORECAST TO EVENTUALLY MOVE TO THE NW AND 
APPROACH THE YUCATAN COAST SUN EVENING AND MOVE INLAND MON. 
WINDS ARE FORECAST TO INCREASE TO 55 KT AS IT MAKES LANDFALL.
OTHERWISE WINDS REMAIN GENERALLY 10-15 KT ACROSS THE REMAINDER 
OF THE CARIBBEAN.

WARNINGS...

ATLC...
.NONE.

CARIBBEAN...
.TROPICAL STORM WARNING FROM 15N-17N BETWEEN 80W-83W...AMZ082.
  
GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS