000 FZNT02 KNHC 311006 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 1030 UTC FRI JUL 31 2020 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 FRI JUL 31. 24 HOUR FORECAST VALID 0600 UTC SAT AUG 1. 48 HOUR FORECAST VALID 0600 UTC SUN AUG 2. .WARNINGS. ...HURRICANE WARNING... .HURRICANE ISAIAS NEAR 20.9N 73.3W 990 MB AT 0900 UTC JUL 31 MOVING NW OR 305 DEG AT 15 KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM NE QUADRANT...90 NM SE QUADRANT...50 NM SW QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 330 NM NE QUADRANT...210 NM SE QUADRANT...90 NM SW QUADRANT...AND 360 NM NW QUADRANT WITH SEAS TO 26 FT. WITHIN 20.5N73W TO 21N74W TO 21.5N73.5W TO 21N73W TO 20.5N73W WINDS 50 TO 70 KT. SEAS 13 TO 26 FT. ELSEWHERE WITHIN 21N72W TO 20N74W TO 21N75W TO 23N75W TO 24N73W TO 21N72W...INCLUDING THE WINDWARD PASSAGE...WINDS 35 TO 50 KT. SEAS 15 TO 20 FT. REMAINDER OF AREA WITHIN 20N67W TO 20N74W TO 23N78W TO 24N77W TO 24N69W TO 20N67W WINDS 20 TO 33 KT. SEAS 8 TO 13 FT. ELSEWHERE WITHIN 19N64W TO 20N73W TO 24N70W TO 26N77W TO 30N71W TO 19N64W...INCLUDING THE WINDWARD PASSAGE...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE ISAIAS NEAR 24.0N 77.0W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...40 NM SW QUADRANT...AND 110 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NE SEMICIRCLE WITH SEAS TO 21 FT. WITHIN 23.5N76.5W TO 23.5N77W TO 24.5N77.5W TO 24.5N77W TO 24N76.5W TO 23.5N76.5W WINDS 55 TO 75 KT. SEAS 8 TO 12 FT. ELSEWHERE WITHIN 24N76W TO 23N76W TO 24N78W TO 26N78W TO 26N76W TO 24N76W E TO SE WINDS 60 TO 75 KT. SEAS 8 TO 21 FT. REMAINDER OF AREA WITHIN 23N73W TO 23N79W TO 26N79W TO 27N75W TO 26N73W TO 23N73W WINDS 20 TO 33 KT. SEAS 8 TO 19 FT. ELSEWHERE WITHIN 25N70W TO 21N69W TO 20N72W TO 29N80W TO 25N70W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE ISAIAS NEAR 27.3N 79.4W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE QUADRANT...90 NM SE QUADRANT...40 NM SW QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM N AND 150 NM S SEMICIRCLES WITH SEAS TO 24 FT. WITHIN 27N79W TO 27N79.5W TO 27.5N80W TO 27.5N79W TO 27N79W WINDS 50 TO 70 KT. SEAS 18 TO 24 FT. ELSEWHERE WITHIN 27N78W TO 27N80W TO 28N80W TO 29N79W TO 28N78W TO 27N78W WINDS 35 TO 50 KT. SEAS 15 TO 20 FT. REMAINDER OF AREA WITHIN 26N76W TO 28N78W TO 29N80W TO 30N78W TO 29N76W TO 26N76W WINDS 20 TO 33 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 28N75W TO 26N76W TO 25N80W TO 31N80W TO 31N77W TO 28N75W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE ISAIAS NEAR 30.6N 79.3W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE ISAIAS NEAR 36.5N 75.5W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. .120 HOUR FORECAST TROPICAL STORM ISAIAS NEAR 42.5N 69.0W. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. 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 WITHIN 08N35W TO 08N37W TO 09N38W TO 11N36W TO 11N35W TO 08N35W WINDS 20 KT OR LESS. SEAS 8 FT IN SE TO S SWELL. .06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC 06 HOUR FORECAST WITHIN 15N44W TO 15N45W TO 17N46W TO 17N44W TO 15N44W WINDS 20 KT OR LESS. SEAS 8 FT IN SE TO S SWELL. .24 HOUR FORECAST WITHIN 16N48W TO 16N50W TO 17N51W TO 18N50W TO 18N48W TO 16N48W WINDS 20 KT OR LESS. SEAS 8 FT IN SE SWELL. .48 HOUR FORECAST WITHIN 19N54W TO 19N57W TO 20N57W TO 20N54W TO 20N53W TO 19N54W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E SWELL. .CARIBBEAN WITHIN 15N68W TO 16N69W TO 18N69W TO 18N68W TO 15N68W...INCLUDING THE MONA PASSAGE...SE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 14N68W TO 17N70W TO 18N70W TO 18N69W TO 17N67W TO 14N68W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SE SWELL. WITHIN 20N78W TO 19N80W TO 20N81W TO 21N80W TO 20N78W NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT. WITHIN 18N76W TO 19N77W TO 20N76W TO 20N74W TO 20N73W TO 18N76W...INCLUDING THE WINDWARD PASSAGE...WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NE SWELL. .24 HOUR FORECAST WITHIN 13N69W TO 13N71W TO 14N73W TO 16N73W TO 16N70W TO 13N69W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SE SWELL. .36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.