000
FZNT02 KNHC 141512
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT AUG 14 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SAT AUG 14.
24 HOUR FORECAST VALID 1200 UTC SUN AUG 15.
48 HOUR FORECAST VALID 1200 UTC MON AUG 16.

.WARNINGS.

...ATLC AND CARIBBEAN TROPICAL STORM WARNING...
.TROPICAL STORM GRACE NEAR 16.2N 57.9W 1005 MB AT 1500 UTC AUG
14 MOVING W OR 280 DEG AT 20 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM N SEMICIRCLE
AND 0 NM S SEMICIRCLE. SEAS TO 10 FT. ELSEWHERE WITHIN 16N55W TO
16N57W TO 17N58W TO 18N56W TO 18N54W TO 16N55W WINDS 20 TO 33 
KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST TROPICAL STORM GRACE NEAR 17.5N 63.8W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM NE QUADRANT...20 NM SE QUADRANT...0 NM SW QUADRANT...AND
30 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 45 NM NE 
QUADRANT WITH SEAS TO 13 FT. ELSEWHERE WITHIN 17N63W TO 17N65W TO
18N64W TO 18N63W TO 18N62W TO 17N63W WINDS 20 TO 33 KT. SEAS 10 
TO 12 FT. REMAINDER OF AREA WITHIN 18N62W TO 19N64W TO 20N63W TO 
20N61W TO 18N62W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED 
SWELL.
.48 HOUR FORECAST TROPICAL STORM GRACE INLAND NEAR 18.6N 68.6W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE
WINDS WITHIN 50 NM NW AND SE QUADRANTS...70 NM NE QUADRANT AND
20 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM NE QUADRANT 
AND 30 NM SW QUADRANT WITH SEAS TO 14 FT. ELSEWHERE WITHIN 
18N68W TO 18N70W TO 19N69W TO 20N69W TO 20N68W TO 18N68W WINDS 20
TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 18N65W TO 
18N67W TO 20N69W TO 22N68W TO 21N65W TO 18N65W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM GRACE OVER WATER NEAR 20.5N
72.8W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM GRACE NEAR 22.8N 77.3W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM GRACE NEAR 25.4N 81.2W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

...GULF OF MEXICO TROPICAL STORM WARNING...
.REMNANTS OF FRED NEAR 23.3N 83.2W 1013 MB AT 1500 UTC AUG 14 
MOVING WNW OR 300 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 30 KT 
GUSTS 40 KT. WITHIN 23N80W TO 24N82W TO 24N83W TO 25N82W TO 
24N80W TO 23N80W...INCLUDING THE STRAITS OF FLORIDA...WINDS 20 
TO 30 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST TROPICAL DEPRESSION FRED TROPICAL CYCLONE NEAR 
25.7N 85.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 
26N83W TO 26N85W TO 27N86W TO 28N85W TO 27N83W TO 26N83W WINDS 
20 TO 30 KT. SEAS 8 TO 10 FT.
.36 HOUR FORECAST TROPICAL STORM FRED NEAR 27.4N 86.7W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.48 HOUR FORECAST TROPICAL STORM FRED NEAR 28.7N 87.4W. MAXIMUM 
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM E SEMICIRCLE...0 NM SW QUADRANT AND 40 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 75 NM E SEMICIRCLE...AND 
45 NM NW QUADRANT WITH SEAS TO 14 FT. ELSEWHERE WITHIN 29N85W TO 
28N87W TO 28N88W TO 30N88W TO 30N86W TO 29N85W WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL STORM FRED INLAND NEAR 31.5N 87.5W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL FRED NEAR 35.0N 86.5W. MAXIMUM 
SUSTAINED WINDS 20 KT GUSTS 30 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.

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

$$
.FORECASTER ERA. NATIONAL HURRICANE CENTER.