000 FZNT02 KNHC 202049 HSFAT2 HIGH SEAS FORECAST NWS NATIONAL HURRICANE CENTER MIAMI FL 2230 UTC FRI AUG 20 2021 SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 AUG 20. 24 HOUR FORECAST VALID 1800 UTC SAT AUG 21. 48 HOUR FORECAST VALID 1800 UTC SUN AUG 22. .WARNINGS. ...GULF OF MEXICO HURRICANE WARNING... .HURRICANE GRACE NEAR 20.5N 95.1W 979 MB AT 2100 UTC AUG 20 MOVING W OR 265 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS WITHIN 160 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE WITH SEAS TO 32 FT. ELSEWHERE...WITHIN 19N93W TO 21N97W TO 24N96W TO 25N93W TO 23N90W TO 19N93W...INCLUDING WITHIN 60 NM OF VERACRUZ AND WITHIN 60 NM OF CAMPECHE...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 22N89W TO 18N95W TO 21N97W TO 26N96W TO 26N93W TO 22N89W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST TROPICAL STORM GRACE INLAND NEAR 19.9N 98.9W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM NE QUADRANT...30 NM SE QUADRANT...20 NM SW QUADRANT...AND 40 NM NW QUADRANT. ELSEWHERE...WITHIN 20N93W TO 19N93W TO 21N97W TO 22N97W TO 23N94W TO 20N93W...INCLUDING WITHIN 60 NM OF VERACRUZ...WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA..WITHIN 20N92W TO 19N95W TO 21N97W TO 23N98W TO 26N96W TO 20N92W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .36 HOUR FORECAST TROPICAL DEPRESSION GRACE INLAND NEAR 19.5N 101.9W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. OVER FORECAST WATERS...CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .48 HOUR FORECAST...DISSIPATED. LITTLE CHANGE IN CONDITIONS OVER FORECAST WATERS. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...ATLANTIC TROPICAL STORM WARNING... .TROPICAL STORM HENRI NEAR 31.3N 73.7W 994 MB AT 2100 UTC AUG 20 MOVING N OR 010 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NE QUADRANT...100 NM SE QUADRANT...50 NM SW QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE...90 NM SE QUADRANT AND 60 NM SW QUADRANT WITH SEAS TO 25 FT. ELSEWHERE OVER FORECAST WATERS...WITHIN 29N72W TO 29N75W TO 31N75W TO 30N73W TO 31N70W TO 29N72W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 28N71W TO 29N79W TO 31N78W TO 31N68W TO 28N71W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .12 HOUR FORECAST HURRICANE HENRI NEAR 32.8N 73.3W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE QUADRANT...120 NM SE QUADRANT...100 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER N OF AREA. ELSEWHERE OVER FORECAST WATERS...WITHIN 30N70W TO 30N72W TO 30N74W TO 31N75W TO 31N70W TO 30N70W WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. .24 HOUR FORECAST HURRICANE HENRI NEAR 35.8N 72.3W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NE QUADRANT...130 NM SE QUADRANT...100 NM SW QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER N OF AREA. OVER FORECAST WATERS...CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .48 HOUR FORECAST HURRICANE HENRI NEAR 40.8N 72.4W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM NE QUADRANT...100 NM SE QUADRANT...70 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER N OF AREA. OVER FORECAST WATERS...LITTLE CHANGE IN CONDITIONS. .60 HOUR FORECAST TROPICAL STORM HENRI INLAND NEAR 42.0N 72.8W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. .72 HOUR FORECAST POST-TROPICAL HENRI NEAR 42.9N 72.6W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL HENRI NEAR 43.8N 68.9W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. .120 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 36 HOUR FORECAST WITHIN 20N71W TO 20N72W TO 20N73W TO 21N72W TO 21N71W TO 20N71W...INCLUDING THE WINDWARD PASSAGE... E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST LITTLE CHANGE. .CARIBBEAN 39 HOUR FORECAST WITHIN 17N71W TO 17N72W TO 17N73W TO 18N72W TO 18N71W TO 17N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER KONARIK. NATIONAL HURRICANE CENTER.