000 FZNT02 KNHC 210954 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC MON AUG 21 2017 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 0600 UTC MON AUG 21. 24 HOUR FORECAST VALID 0600 UTC TUE AUG 22. 48 HOUR FORECAST VALID 0600 UTC WED AUG 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC TROUGH FROM 24N50W TO 21N52W. WITHIN AREA BOUNDED BY 25N56W TO 25N48W TO 20N48W TO 20N56W TO 25N56W E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST TROUGH FROM 27N54W TO 22N55W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC 12 HOUR FORECAST WITHIN AREA BOUNDED BY 20.5N72.5W TO 20.5N71W TO 20N71W TO 20N72.5W TO 20.5N72.5W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN LOW PRES...REMNANTS OF HARVEY... NEAR 15N80W 1008 MB. WITHIN AREA BOUNDED BY 18N81W TO 18N76W TO 14N76W TO 14N81W TO 18N81W E TO SE WINDS 20 TO 25 KT. SEAS 8 FT. .24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 17N85W 1008 MB. WITHIN AREA BOUNDED BY 19N86W TO 19N84W TO 17N84W TO 17N86W TO 19N86W E WINDS 20 TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 17N87W 1009 MB. WITHIN AREA BOUNDED BY 19N89W TO 19N87W TO 18N86W TO 18N89W TO 19N89W E WINDS 20 TO 25 KT. SEAS TO 8 FT. .CARIBBEAN 24 HOUR FORECAST WITHIN AREA BOUNDED BY 12N75W TO 12N73.5W TO 11.5N73.5W TO 11.5N75W TO 12N75W...INCLUDING WITHIN 90 NM OF COAST OF COLOMBIA... NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 0900 UTC MON AUG 21... .LOW PRES NEAR 15N80W...SCATTERED MODERATE ISOLATED STRONG FROM 15N TO 20N BETWEEN 70W AND 85W. .TROUGH ALONG 72W FROM 27N TO 21N. SCATTERED MODERATE FROM 23N TO 27N BETWEEN 69W AND 74W. .TROUGH FROM 24N50W TO 21N52W. SCATTERED MODERATE FROM 20N TO 24N BETWEEN 48W AND 52W. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.