000
AGXX40 KNHC 171800
MIMATS

MARINE WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
200 PM EDT TUE AUG 17 2010

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

GULF OF MEXICO LOW HAS MOVED INLAND OVER SE LOUISIANA. THE LOW 
IS FORECAST TO CONTINUE TO MOVE N AND WEAKEN. BUOYS INDICATE SW 
WINDS OFF THE SE LOUISIANA COAST...BUT SHOULD DECREASE TO 10-15 
KT THIS EVENING.  WEAK TROUGH OVER THE SW GULF ALONG THE COAST 
OF MEXICO REMAIN IN THE AREA THROUGH EARLY WED THEN DISSIPATE.
OTHERWISE HIGH PRES RIDGE BUILDS ALONG 25N LATE WED AND SHIFTS N 
TO 27N THU NIGHT AND FRI. THE RIDGE WEAKENS AND MOVES S OVER THE 
WEEKEND. MOSTLY LIGHT WINDS ACROSS THE AREA THROUGH SUN.

WEAK TROUGH ALONG THE N PORTION OF THE ATLC ZONE FROM 31N65W
TO 28N79W WILL DRIFT N AND DISSIPATE TONIGHT. THE NORTHERN END 
OF TROPICAL WAVE MOVING THROUGH THE CARIBBEAN IS CURRENTLY OVER 
THE FAR SE PORTION OF THE AREA. THE WAVE COMBINED WITH A 
BUILDING RIDGE TO THE N WILL INCREASE THE ELY WINDS TO 20 KT
TONIGHT. THE 20 KT WINDS WILL SHIFT W AS THE WAVE MOVES W AND 
WILL BE OVER THE STRAITS OF FLORIDA THU. THE TROPICAL
WAVE IS FORECAST TO WEAKEN AS IT MOVE TO THE W. OTHERWISE HIGH 
PRES RIDGE ALONG 27N WED AND THU THE RIDGE WEAKENS AND DRIFTS
S FRI AND SAT AS A FRONT/TROUGH MOVES TO THE N OF THE AREA. THE 
RIDGE STRENGTHENS SOME ON SUN.

TROPICAL WAVE OVER THE WESTERN CARIBBEAN ALONG 69W WILL MOVE 
INTO THE CENTRAL CARIBBEAN TONIGHT AND INTO THE WESTERN 
CARIBBEAN WED AND THU AND W OF THE AREA THU NIGHT. 20 TO BRIEFLY 
25 KT ELY WINDS WILL SHIFT TO THE W WITH THE TROPICAL WAVE. A 
LARGE CLUSTER OF SHOWERS AND TSTMS ARE WITHIN 240 NM E OF THE
WAVE. EXCEPT FOR THE AREAS NEAR THE TROPICAL WAVE THE TRADES 
WILL BE LIGHTER THAN NORMAL THE WEEKEND. NEXT TROPICAL WAVE WILL 
MOVE INTO THE TROPICAL ATLC ZONE THU AND INTO THE EASTERN 
CARIBBEAN FRI AND SAT AND INTO THE CENTRAL CARIBBEAN SUN. THE 
SECOND WILL NOT BE AS STRONG AS THE ONE CURRENTLY MOVING THROUGH 
THE AREA.

WARNINGS...

SW N ATLC...
.NONE.

CARIBBEAN...
.NONE.

.GULF OF MEXICO...
.NONE.

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

$$
FORECASTER DGS