000 FZNT02 KNHC 232056 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC SUN AUG 23 2020 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC SUN AUG 23. 24 HOUR FORECAST VALID 1800 UTC MON AUG 24. 48 HOUR FORECAST VALID 1800 UTC TUE AUG 25. .WARNINGS. ...ATLC AND GULF OF MEXICO HURRICANE WARNING... .TROPICAL STORM LAURA NEAR 19.5N 75.3W 1001 MB AT 2100 UTC AUG 23 MOVING WNW OR 285 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT...80 NM SE QUADRANT...0 NM SW QUADRANT...AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM S SEMICIRCLE...360 NM NE QUADRANT AND 210 NM NW QUADRANT WITH SEAS TO 17 FT. ELSEWHERE OVER ATLC AND CARIBBEAN WATERS WITHIN 20N71W TO 19N75W TO 24N77W TO 25N75W TO 24N72W TO 20N71W...INCLUDING THE WINDWARD PASSAGE...WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA OVER ATLC WATERS WITHIN 24N67W TO 20N70W TO 24N72W TO 25N76W TO 27N71W TO 24N67W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL. .24 HOUR FORECAST TROPICAL STORM LAURA INLAND NEAR 21.8N 81.7W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. LITTLE CHANGE. RADIUS OF TROPICAL STORM FORCE WINDS AND SEAS 12 FT OR GREATER. ELSEWHERE OVER ATLC WATERS WITHIN 22N78W TO 24N83W TO 26N83W TO 25N81W TO 26N79W TO 22N78W...INCLUDING THE STRAITS OF FLORIDA...WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. ELSEWHERE OVER CARIBBEAN WATERS WITHIN 20N79W TO 20N80W TO 21N82W TO 23N82W TO 22N80W TO 20N79W WINDS 20 TO 33 KT. SEAS TO 9 FT. REMAINDER OF AREA OVER ATLC WATERS FROM 25N75W TO 28N79W TO 29N75W TO 25N75W WINDS 20 KT OR LESS. SEAS TO 9 FT IN SE SWELL. .48 HOUR FORECAST TROPICAL STORM LAURA NEAR 24.7N 87.7W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...90 NM SE QUADRANT...40 NM SW QUADRANT...AND 80 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 270 NM NE AND 90 NM SW SEMICIRCLES WITH SEAS TO 24 FT. ELSEWHERE WITHIN 22N86W TO 23N89W TO 26N90W TO 29N87W TO 27N83W TO 22N86W WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .60 HOUR FORECAST HURRICANE LAURA NEAR 26.1N 90.2W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. .72 HOUR FORECAST HURRICANE LAURA NEAR 28.0N 92.5W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST TROPICAL STORM LAURA INLAND NEAR 32.7N 93.5W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. .120 HOUR FORECAST POST-TROPICAL LAURA NEAR 37.0N 88.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. ...HURRICANE WARNING... .HURRICANE MARCO NEAR 25.8N 87.8W 991 MB AT 2100 UTC AUG 23 MOVING NNW OR 340 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE QUADRANT...70 NM SE QUADRANT...30 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM OF CENTER EXCEPT 90 NM NE QUADRANT WITH SEAS TO 22 FT. ELSEWHERE WITHIN 25N86W TO 24N90W TO 27N89W TO 28N86W TO 27N85W TO 25N86W WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST HURRICANE MARCO NEAR 28.5N 89.7W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE QUADRANT...50 NM SE QUADRANT...30 NM SW QUADRANT...AND 45 NM NW QUADRANT. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 90 NM NE AND 45 NM SW SEMICIRCLES WITH SEAS TO 21 FT. ELSEWHERE WITHIN 28N87W TO 27N90W TO 28N93W TO 29N92W TO 30N87W TO 28N87W WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .36 HOUR FORECAST TROPICAL STORM MARCO INLAND NEAR 29.3N 91.4W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. .48 HOUR FORECAST TROPICAL STORM MARCO INLAND NEAR 29.8N 93.2W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. OVER FORECAST WATERS WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .60 HOUR FORECAST POST-TROPICAL MARCO NEAR 29.9N 95.1W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. .72 HOUR FORECAST POST-TROPICAL MARCO NEAR 29.7N 96.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST...DISSIPATED. 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 42 HOUR FORECAST WITHIN 19N35W TO 20N36W TO 21N36W TO 23N36W TO 24N35W TO 19N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE SWELL. .48 HOUR FORECAST WITHIN 17N35W TO 18N37W TO 19N38W TO 21N37W TO 23N35W TO 17N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN SE SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.