000 FZPN04 KNHC 201015 HSFEP3 CCODE/1:31:16:01:00/AOW/NWS/CCODE HIGH SEAS FORECAST FOR METAREA XVI NWS NATIONAL HURRICANE CENTER MIAMI FL 1115 UTC THU APR 20 2017 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 E PACIFIC FROM 03.4S TO 18.5S E OF 120W SYNOPSIS VALID 0600 UTC THU APR 20. 24 HOUR FORECAST VALID 0600 UTC FRI APR 21. 48 HOUR FORECAST VALID 0600 UTC SAT APR 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .S OF LINE FROM 16S81W TO 11S88W TO 03.4S108W TO 03.4S112W TO 08S120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL. .24 HOUR FORECAST S OF LINE FROM 17S79W TO 13S84W TO 05S104W TO 04S114W TO 15S120W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SW AND NW SWELL. .48 HOUR FORECAST S OF LINE FROM 18.5S76W TO 12S85W TO 08S101W TO 05S117W TO 06S120W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SW AND NW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER MCELROY. NATIONAL HURRICANE CENTER.