593 
FZNT02 KNHC 151016
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SUN AUG 15.
24 HOUR FORECAST VALID 0600 UTC MON AUG 16.
48 HOUR FORECAST VALID 0600 UTC TUE AUG 17.

.WARNINGS.

...ATLC AND CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM GRACE NEAR 16.9N 64.4W 1010 MB AT 0900 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 17N61W TO 16N65W TO 18N65W TO 19N63W TO 19N61W TO 17N61W 
E WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST TROPICAL STORM GRACE NEAR 18.3N 68.9W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM NE QUADRANT...30 NM SE QUADRANT...0 NM SW 
QUADRANT...AND 40 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60
NM N SEMICIRCLE AND 30 NM SE QUADRANT WITH SEAS TO 14 FT. 
ELSEWHERE WITHIN 18N67W TO 17N69W TO 20N68W TO 20N66W TO 19N65W 
TO 18N67W...INCLUDING THE MONA PASSAGE...WINDS 20 TO 30 KT. SEAS 
8 TO 11 FT.
.48 HOUR FORECAST TROPICAL STORM GRACE INLAND OVER HISPANIOLA 
NEAR 19.8N 72.6W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. 
TROPICAL STORM FORCE WINDS WITHIN 0 NM S SEMICIRCLE...80 NM NE 
QUADRANT AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 
NM N SEMICIRCLE WITH SEAS TO 15 FT. ELSEWHERE WITHIN 20N71W TO 
19N73W TO 20N74W TO 21N73W TO 21N71W TO 20N71W...INCLUDING THE 
WINDWARD PASSAGE...WINDS 20 TO 33 KT. SEAS 8 TO 11 FT.
.72 HOUR FORECAST TROPICAL STORM GRACE NEAR COAST OF CUBA NEAR 
22.0N 78.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. EXTENDED 
OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GRACE NEAR 23.9N 82.5W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST TROPICAL STORM GRACE NEAR 25.6N 86.2W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

...GULF OF MEXICO TROPICAL STORM WARNING...
.REMNANTS OF FRED NEAR 24.4N 84.6W 1011 MB AT 0900 UTC AUG 15 
MOVING NNW OR 330 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 35 KT 
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER 
EXCEPT 100 NM NE QUADRANT. SEAS 8 TO 10 FT WITHIN 100 NM NE 
QUADRANT. ELSEWHERE WITHIN 24N82W TO 24N86W TO 27N86W TO 27N84W 
TO 26N82W TO 24N82W...INCLUDING THE STRAITS OF FLORIDA...WINDS 20
TO 33 KT. SEAS 8 TO 9 FT...EXCEPT LESS THAN 8 FT STRAITS OF 
FLORIDA.
.24 HOUR FORECAST TROPICAL STORM FRED NEAR 27.0N 86.6W. MAXIMUM 
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM W SEMICIRCLE...90 NM NE QUADRANT AND 50 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM NE QUADRANT AND 60 
NM SE QUADRANT WITH SEAS TO 14 FT. ELSEWHERE WITHIN 27N86W TO 
27N88W TO 29N89W TO 30N88W TO 29N86W TO 27N86W WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM FRED NEAR 30.3N 87.1W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM W SEMICIRCLE...80 NM NE QUADRANT AND 70 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 90 NM NE QUADRANT AND 60 
NM SE QUADRANT WITH SEAS TO 15 FT.
.60 HOUR FORECAST TROPICAL DEPRESSION FRED INLAND NEAR 32.5N 
86.8W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.72 HOUR FORECAST TROPICAL DEPRESSION FRED WELL INLAND NEAR 
35.0N 85.8W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 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.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.