000
AGXX40 KNHC 211840
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
240 PM 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.

HIGH PRES AND LIGHT WINDS CONTINUE OVER THE NW GULF OF MEXICO. 
NLY WINDS ACROSS THE CENTRAL AND EASTERN GULF WILL CONTINUE 
TONIGHT THEN SHIFT NE AND INCREASE FRI THROUGH SAT. SLY WINDS 
INCREASE NEAR THE COAST OF SRN TEXAS AND NRN MEXICO FRI NIGHT 
AND SAT AS A RIDGE OVER THE SE U.S. STRENGTHENS. 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 STORM RICHARD IN THE NW CARIBBEAN IS 
FORECAST TO INTENSIFY AND MOVE INTO THE YUCATAN PENINSULA MON AS 
A HURRICANE. WINDS IN THE ERN BAY OF CAMPECHE WILL INCREASE TUE.

ATLC TROUGH EXTENDS NE FROM 31N66W TO THE NRN BAHAMAS. THE TROUGH
WILL MOVE E AND EXTEND FROM NEAR 31N60W TO THE BAHAMAS FRI THEN 
WEAKEN TO A SHEAR LINE SAT. HIGH PRES BUILDING ACROSS NRN PORTION
OF THE ATLC ZONE ALONG 30N TONIGHT WILL INCREASE THE GRADIENT 
ASSOCIATED WITH THIS TROUGH...WITH SW WINDS E OF THE TROUGH 
INCREASING TO 25 KT TONIGHT. THE PRES GRADIENT WEAKENS FRI. 
STRONG HIGH PRES BUILDS N OF 30N THIS WEEKEND INCREASING ENE 
TRADES TO AROUND 20 KT S OF 27N.  

TROPICAL STORM RICHARD IN THE NW CARIBBEAN NEAR 16.2N 80.4N AT 
1500 UTC IS FORECAST TO INTENSIFY THROUGH SUN AND BECOME A 
HURRICANE BEFORE MAKING LANDFALL ALONG THE YUCATAN PENINSULA 
MON. WINDS AND SEAS WITHIN 150 TO 180 NM OF THE CENTER WILL 
STEADILY INCREASE THROUGH THE WEEKEND. WINDS REMAIN GENERALLY 
10-15 KT ACROSS THE REMAINDER OF THE CARIBBEAN.

WARNINGS...

ATLC...
.NONE.

CARIBBEAN...
.TROPICAL STORM WARNING FROM 15N-18N BETWEEN 79W-83W...AMZ082.
  
GULF OF MEXICO...
.NONE.

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

$$
FORECASTER MUNDELL