000
FZNT02 KNHC 151555
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN AUG 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SUN AUG 15.
24 HOUR FORECAST VALID 1200 UTC MON AUG 16.
48 HOUR FORECAST VALID 1200 UTC TUE AUG 17.

.WARNINGS.

...ATLC AND CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM GRACE NEAR 17.2N 66.0W 1010 MB AT 1500 UTC AUG
15 MOVING WNW OR 285 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM N SEMICIRCLE
AND 0 NM S SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 0 NM OF 
CENTER EXCEPT 30 NM NE QUADRANT WITH SEAS TO 13 FT. ELSEWHERE 
WITHIN 16N64W TO 16N67W TO 18N68W TO 19N65W TO 18N64W TO 
16N64W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST TROPICAL STORM GRACE INLAND NEAR 18.5N 69.7W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM E SEMICIRCLE...0 NM SW QUADRANT AND 20 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM NE QUADRANT WITH 
SEAS TO 17 FT. ELSEWHERE WITHIN 19N67W TO 17N69W TO 18N70W TO 
21N70W TO 20N68W TO 19N67W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST TROPICAL DEPRESSION GRACE INLAND NEAR 19.3N 
71.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 12 FT 
IN NE QUADRANT. ELSEWHERE WITHIN 19N67W TO 17N69W TO 18N70W TO 
21N70W TO 20N68W TO 19N67W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST TROPICAL STORM GRACE OVER WATER NEAR 20.3N 
74.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM 
FORCE WINDS WITHIN 50 NM OF CENTER EXCEPT 0 NM SW QUADRANT. SEAS 
12 FT OR GREATER 30 NM NE QUADRANT WITH SEAS TO 13 FT. ELSEWHERE 
WITHIN 21N74W TO 19N75W TO 21N76W TO 23N75W TO 22N72W TO 21N74W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.72 HOUR FORECAST TROPICAL STORM GRACE INLAND NEAR 22.3N 79.4W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. 
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. 
.96 HOUR FORECAST TROPICAL STORM GRACE OVER WATER NEAR 24.6N 
84.7W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. 
.120 HOUR FORECAST TROPICAL STORM GRACE NEAR 26.5N 89.0W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT.

...GULF OF MEXICO TROPICAL STORM WARNING... 
.TROPICAL STORM FRED NEAR 26.1N 84.9W 1008 MB AT 1500 UTC AUG 15
MOVING NNW OR 330 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER 
EXCEPT 70 NM NE QUADRANT. ELSEWHERE WITHIN 24N82W TO 24N84W TO 
24N87W TO 27N87W TO 28N83W TO 24N82W WINDS 20 TO 33 KT. SEAS 8 
TO 10 FT.
.24 HOUR FORECAST TROPICAL STORM FRED NEAR 28.9N 86.5W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM W SEMICIRCLE...90 NM NE QUADRANT AND 60 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 100 NM NE QUADRANT AND 60 
NM SE QUADRANT AND 30 NM SE QUADRANT WITH SEAS 16 FT. ELSEWHERE
WITHIN 27N85W TO 27N89W TO28N90W TO 30N89W TO 29N85W TO 27N85W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST TROPICAL DEPRESSION FRED INLAND NEAR 32.5N 
86.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. ELSEWHERE 
WITHIN 30N85W TO 29N86W TO 30N88W TO 31N86W TO 30N85W WINDS 20 KT
OR LESS. SEAS LESS THAN 8 FT. 
.60 HOUR FORECAST POST-TROPICAL FRED NEAR 34.7N 85.7W. MAXIMUM 
SUSTAINED WINDS 20 KT GUSTS 30 KT.
.72 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.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER TORRES. NATIONAL HURRICANE CENTER.