000
AGXX40 KNHC 221908
MIMATS

MARINE WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
300 PM EDT FRI OCT 22 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.

GULF OF MEXICO...
SLY RETURN FLOW OF 20 KT CONTINUES OVER THE NW PORTION OF THE 
GULF N OF 25N AND W OF 94W BETWEEN HIGH PRES RIDGE OVER SE U.S. 
AND LOW PRES OVER TEXAS. LIGHT TO MODERATE WINDS DOMINATE THE 
REMAINDER OF THE GULF WATERS. TRADE WINDS WILL INCREASE IN THE 
STRAITS OF FLORIDA AND SOUTH-CENTRAL GULF THROUGH SUN NIGHT AS 
TROPICAL STORM RICHARD INTENSIFIES IN THE NW CARIBBEAN. WINDS 
WILL APPROACH 25 KT WITH BUILDING SEAS TO 8 FT. RICHARD IS 
EXPECTED TO MAKE LANDFALL MON ALONG THE YUCATAN PENINSULA AS A 
HURRICANE THEN WEAKEN OVER LAND TUE BEFORE MOVING NW INTO THE SW 
PORTION OF THE GULF AS A TROPICAL DEPRESSION WED.

SW N ATLC...
ATLC TROUGH EXTENDS FROM 31N63W TO NEAR 25N73W. THE TROUGH WILL 
WEAKEN INTO A SHEAR LINE FROM 31N60W TO 25N74W SAT THEN DISSIPATE
SUN. ELY TRADES INCREASE SAT AND SUN AS A HIGH PRES RIDGE BUILDS 
BEHIND THE TROUGH ACROSS THE AREA. THE PRES GRADIENT BETWEEN THE 
HIGH TO THE N AND TROPICAL CYCLONE RICHARD TO THE S OVER THE NW 
CARIBBEAN WILL BRING AN INCREASE IN WINDS AND SEAS ACROSS THE 
STRAITS OF FLORIDA THROUGH SUN NIGHT. IN ADDITION...INCREASING 
ENE TRADES TO AROUND 20 KT ARE ALSO EXPECTED S OF 27N.

CARIBBEAN SEA AND TROPICAL N ATLC...
TROPICAL STORM RICHARD MOVING SLOWLY IN THE NW CARIBBEAN NEAR 
15.8N 81.1W AT 1500 UTC WITH WINDS 35 KT GUSTS TO 45 KT. IT IS 
FORECAST TO SLOWLY INTENSIFY...REACHING HURRICANE STATUS SUN 
BEFORE MAKING LANDFALL ALONG THE YUCATAN PENINSULA MON. TROPICAL 
STORM FORCE WINDS AND 12 FT SEAS ARE WITHIN 90 NM NE QUADRANT. 
THE RADIUS OF WINDS AND SEAS IS ALSO EXPECTED TO EXPAND AS THE 
STORM INTENSIFIES. A TROPICAL STORM WARNING IS IN EFFECT OVER 
THE NW CARIBBEAN. WINDS WILL REMAIN GENERALLY 10-15 KT ACROSS 
THE REMAINDER OF THE BASIN.

SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A WEAK LOW PRESSURE 
SYSTEM E OF THE LESSER ANTILLES NEAR 13N45W HAVE DISSIPATED DUE 
TO THE PRESENCE OF STRONG UPPER-LEVEL WINDS. HOWEVER...THE 
TROUGH WILL CONTINUE TO MOVE WWD PRODUCING SOME INCREASE IN 
WINDS AND SEAS ACROSS THE TROPICAL N ATLC BY SAT. EXPECT 
INCREASING WINDS OF 20 KT AND BUILDING SEAS TO 8-9 FT.

WARNINGS...

ATLC...
.NONE.

CARIBBEAN...
...TROPICAL STORM WARNING FROM 14N TO 19N BETWEEN 79W AND 85W... 
AMZ082 AND AMZ084. 
...HURRICANE CONDITIONS EXPECTED SUN THROUGH MON S OF 20N W OF  
84W...AMZ082. 

GULF OF MEXICO...
.NONE.

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

$$
FORECASTER MUNDELL