000 FZPN04 KNHC 190437 HSFEP3 CCODE/1:31:16:01:00/AOW/NWS/CCODE HIGH SEAS FORECAST FOR METAREA XVI NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 2315 UTC SUN MAY 18 2008 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT. SECURITE S PACIFIC FROM THE EQUATOR TO 18.5S E OF 120W SYNOPSIS VALID 1800 UTC SUN MAY 18. 24 HOUR FORECAST VALID 1800 UTC MON MAY 19. 48 HOUR FORECAST VALID 1800 UTC TUE MAY 20. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .TROUGH 18.5S98W TO 14S112W. S OF 12S WITHIN 240 NM NE OF TROUGH W TO NW WINDS 20 KT. SEAS TO 9 FT. S OF TROUGH SW TO W WINDS TO 20 KT. SEAS 8 TO 10 FT IN S SWELL. ELSEWHERE W OF 95W WINDS LESS THAN 20 KT. SEAS TO 8 FT IN S SWELL. .24 HOUR FORECAST TROUGH 18.5S97W TO 12S108W. S OF LINE 18.5S90W TO 11S108W TO 18.5S116W WINDS LESS THAN 20 KT. SEAS 8 TO 12 FT IN SW SWELL. .48 HOUR FORECAST TROUGH DIFFUSE. S OF LINE 18.5S82W TO 08S100W TO 18.5S112W WINDS LESS THAN 20 KT. SEAS 8 TO 10 FT IN SW SWELL. .REMAINDER OF AREA WINDS LESS THAN 20 KT. SEAS LESS THAN 8 FT. $$ .FORECASTER NELSON. TROPICAL PREDICTION CENTER.