000
FZNT02 KNHC 211500
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT AUG 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 21.
24 HOUR FORECAST VALID 1200 UTC SUN AUG 22.
48 HOUR FORECAST VALID 1200 UTC MON AUG 23.

.WARNINGS.

...GULF OF MEXICO TROPICAL STORM WARNING...
.TROPICAL STORM GRACE NEAR 19.7N 98.9W 990 MB AT 1500 UTC AUG 21
MOVING WSW OR 250 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 75 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE 
QUADRANT...90 NM SE QUADRANT...20 NM SW QUADRANT...AND 50 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM OF CENTER EXCEPT 240 
NM NE QUADRANT WITH SEAS TO 20 FT. ELSEWHERE...WITHIN 20N92W TO 
19N93W TO 19N96W TO 23N98W TO 23N94W TO 20N92W...INCLUDING WITHIN
60 NM OF VERACRUZ...WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. 
REMAINDER OF AREA...WITHIN 20N92W TO 19N96W TO 23N95W TO 22N98W 
TO 27N97W TO 20N92W...INCLUDING WITHIN 60 NM OF CAMPECHE...WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL GRACE NEAR 19.0N 102.5W. MAXIMUM
SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER FORECAST 
WATERS...CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 
8 FT.
.36 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 WITHIN 30N70W TO 30N74W TO 31N789W TO 31N69W TO 30N70W SW 
WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.09 HOUR FORECAST CONDITIONS IMPROVE.

.ATLC 24 HOUR FORECAST WITHIN 20N71W TO 20N72W TO 20N73W TO
21N73W TO 21N72W TO 20N71W...INCLUDING THE WINDWARD PASSAGE...E 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 20N71W TO 20N72W TO 20N74W TO 21N74W TO
21N72W TO 20N71W...INCLUDING THE WINDWARD PASSAGE...E WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT.

.CARIBBEAN 12 HOUR FORECAST WITHIN 16N86W TO 16N88W TO 17N88W TO
17N87W TO 16N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 
TO 25 KT. SEAS LESS THAN 8 FT. 
.21 HOUR FORECAST CONDITIONS IMPROVE.

.CARIBBEAN 12 HOUR FORECAST WITHIN 12N73W TO 12N75W TO 13N75W TO
13N74W TO 13N73W TO 12N73W NE TO E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE.

.CARIBBEAN 24 HOUR FORECAST WITHIN 17N72W TO 16N73W TO 17N73W TO
17N72W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 14N62W TO 15N68W TO 16N75W TO 18N72W TO
18N66W TO 14N62W...INCLUDING THE MONA PASSAGE...E WINDS 20 TO 25
KT. SEAS 8 TO 9 FT.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.