620 FZNT02 KNHC 182102 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC FRI OCT 18 2024 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC FRI OCT 18. 24 HOUR FORECAST VALID 1800 UTC SAT OCT 19. 48 HOUR FORECAST VALID 1800 UTC SUN OCT 20. .WARNINGS. ...CARIBBEAN TROPICAL STORM WARNING... .POTENTIAL TROPICAL CYCLONE FIFTEEN NEAR 17.5N 85.0W 1005 MB AT 2100 UTC OCT 18 MOVING WNW OR 300 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 21N82W TO 21N83W TO 21N87W TO 18N87W TO 18N82W TO 21N82W...INCLUDING IN YUCATAN CHANNEL...WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST TROPICAL STORM FIFTEEN NEAR 17.3N 88.3W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S SEMICIRCLE...120 NM NE QUADRANT AND 50 NM NW QUADRANT. ELSEWHERE...WITHIN 20N83W TO 22N84W TO 22N86W TO 18N88W TO 17N87W TO 18N84W TO 20N83W...INCLUDING IN YUCATAN CHANNEL...WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .36 HOUR FORECAST TROPICAL DEPRESSION FIFTEEN INLAND NEAR 17.2N 90.9W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST WATERS...WITHIN 22N82W TO 21N87W TO 20N86W TO 19N85W TO 21N84W TO 21N80W TO 22N82W...INCLUDING IN YUCATAN CHANNEL...E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. .48 HOUR FORECAST...DISSIPATED. OVER FORECAST WATERS...WITHIN 21N84W TO 22N85W TO 22N86W TO 20N87W TO 20N85W TO 20N84W TO 21N84W...INCLUDING IN YUCATAN CHANNEL...WINDS 20 KT OR LESS. SEAS TO 8 FT IN MIXED SWELL. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .SYNOPSIS AND FORECAST. .ATLC STATIONARY FRONT FROM 31N67W TO 22N80W. WITHIN 27N76W TO 29N77W TO 31N81W TO 28N80W TO 24N80W TO 26N72W TO 27N76W...INCLUDING ATLANTIC EXPOSURES...NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. .24 HOUR FORECAST STATIONARY FRONT FROM 31N64W TO 23N76W. WITHIN 26N70W TO 27N77W TO 31N79W TO 24N80W TO 23N76W TO 24N71W TO 26N70W...INCLUDING ATLANTIC EXPOSURES...NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST STATIONARY FRONT FROM 31N63W TO 23N74W. WITHIN 30N65W TO 31N81W TO 27N80W TO 23N75W TO 22N71W TO 25N66W TO 30N65W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL. .ATLC WITHIN 24N35W TO 24N37W TO 17N37W TO 15N35W TO 24N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL. .15 HOUR FORECAST CONDITIONS IMPROVE. .ATLC WITHIN 23N59W TO 21N65W TO 20N63W TO 20N59W TO 18N55W TO 20N55W TO 23N59W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL. .24 HOUR FORECAST CONDITIONS MERGED WITH STATIONARY FRONT AREA DESCRIBED ABOVE. .GULF OF MEXICO WITHIN 24N84W TO 25N84W TO 24N86W TO 23N87W TO 22N86W TO 23N85W TO 24N84W...INCLUDING STRAITS OF FLORIDA...WINDS 20 TO 30 KT. SEAS 10 TO 13 FT. ELSEWHERE...WITHIN 30N85W TO 29N89W TO 25N91W TO 21N90W TO 22N85W TO 24N81W TO 30N85W...INCLUDING STRAITS OF FLORIDA...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST WITHIN 30N86W TO 30N93W TO 19N96W TO 24N81W TO 30N86W...INCLUDING STRAITS OF FLORIDA AND WITHIN 60 NM OF COAST OF VERACRUZ...NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .48 HOUR FORECAST WITHIN 28N83W TO 29N93W TO 27N96W TO 20N96W TO 19N93W TO 24N82W TO 28N83W...INCLUDING STRAITS OF FLORIDA AND WITHIN 60 NM OF COAST OF VERACRUZ...NE TO E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER KONARIK. NATIONAL HURRICANE CENTER.