000 FZNT02 KNHC 201547 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1630 UTC THU JUL 20 2023 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 THU JUL 20. 24 HOUR FORECAST VALID 1200 UTC FRI JUL 21. 48 HOUR FORECAST VALID 1200 UTC SAT JUL 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN 12N35W TO 12N37W TO 11N40W TO 08N40W TO 07N39W TO 07N35W TO 12N35W SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC AND CARIBBEAN WITHIN 22N71W TO 21N74W TO 19N75W TO 20N73W TO 20N71W TO 20N70W TO 22N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN WITHIN 18N71W TO 18N78W TO 13N81W TO 10N78W TO 13N67W TO 18N71W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST WITHIN 18N72W TO 18N78W TO 16N82W TO 12N82W TO 10N77W TO 13N69W TO 18N72W...INCLUDING THE GULF OF VENEZUELA... E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST WITHIN 14N70W TO 15N71W TO 15N74W TO 14N74W TO 12N72W TO 13N70W TO 14N70W E WINDS 20 TO 25 KT. SEAS 8 FT. WITHIN 16N74W TO 17N77W TO 14N82W TO 12N81W TO 11N76W TO 12N74W TO 16N74W WINDS KT OR LESS. SEAS 8 TO 10 FT IN E SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER LANDSEA. NATIONAL HURRICANE CENTER.