505 FZNT02 KNHC 161434 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC SUN SEP 16 2018 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 1200 UTC SUN SEP 16. 24 HOUR FORECAST VALID 1200 UTC MON SEP 17. 48 HOUR FORECAST VALID 1200 UTC TUE SEP 18. .WARNINGS. .NONE .SYNOPSIS AND FORECAST. .ATLC TROUGH FROM 22N67W TO 29N60W. WITHIN 180 NM SE OF TROUGH WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. SCATTERED TSTMS. .24 HOUR FORECAST TROUGH FROM 22N71W TO 28N62W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC 36 HOUR FORECAST TROPICAL WAVE FROM 05N TO 21N ALONG 50W. FROM 12N TO 17N WITHIN 360 NM E OF WAVE E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST TROPICAL WAVE FROM 05N TO 21N ALONG 54W. FROM 12N TO 17N WITHIN 540 NM E OF WAVE E TO SE WINDS 20 TO 25 KT. SEAS TO 8 FT. .CARIBBEAN TROUGH ALONG 75W. WITHIN 360 NM E OF TROUGH WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. SCATTERED TSTMS. .24 HOUR FORECAST TROUGH ALONG 75W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER NELSON. NATIONAL HURRICANE CENTER.