000
FZNT02 KNHC 201504
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FRI AUG 20.
24 HOUR FORECAST VALID 1200 UTC SAT AUG 21.
48 HOUR FORECAST VALID 1200 UTC SUN AUG 22.

.WARNINGS.

...GULF OF MEXICO HURRICANE WARNING...
.HURRICANE GRACE NEAR 20.6N 94.3W 982 MB AT 1500 UTC AUG 20 
MOVING W OR 265 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 75 KT GUSTS
90 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 60 NM S SEMICIRCLE...210 NM NE 
QUADRANT AND 180 NM NW QUADRANT WITH SEAS TO 27 FT. 
ELSEWHERE...WITHIN 19N91W TO 21N97W TO 26N96W TO 26N92W TO 23N88W
TO 19N91W...INCLUDING WITHIN 60 NM OF VERACRUZ AND WITHIN 60 NM 
OF CAMPECHE...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM GRACE INLAND NEAR 20.0N 98.2W. 
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE 
WINDS WITHIN 100 NM NE QUADRANT...60 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
210 NM NE QUADRANT WITH SEAS TO 16 FT. ELSEWHERE...WITHIN 20N92W 
TO 19N96W TO 23N98W TO 27N96W TO 25N94W TO 20N92W...INCLUDING 
WITHIN 60 NM OF VERACRUZ...WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST TROPICAL STORM GRACE INLAND NEAR 19.4N 101.1W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. OVER FORECAST 
WATERS...WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 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.

...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM HENRI NEAR 30.4N 73.7W 996 MB AT 1500 UTC AUG 20
MOVING NW OR 305 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 55 KT 
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM E 
SEMICIRCLE...40 NM SW QUADRANT AND 60 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 23 FT. ELSEWHERE OVER FORECAST 
WATERS...WITHIN 29N72W TO 29N74W TO 31N75W TO 31N70W TO 29N72W 
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA...WITHIN 
26N74W TO 27N77W TO 31N77W TO 30N73W TO 31N70W TO 26N74W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE HENRI NEAR 34.1N 72.7W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NE QUADRANT...120 NM SE QUADRANT...80 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 39.8N 71.7W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NE AND SW QUADRANTS...60 NM NW QUADRANT AND 100 NM 
SE QUADRANT. SEAS 12 FT OR GREATER N OF AREA. OVER FORECAST 
WATERS...WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.60 HOUR FORECAST TROPICAL STORM HENRI INLAND NEAR 41.4N 71.8W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.
.72 HOUR FORECAST TROPICAL STORM HENRI INLAND NEAR 42.4N 71.8W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL HENRI NEAR 43.7N 69.4W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 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.

.CARIBBEAN WITHIN 17N87W TO 18N88W TO 18N87W TO
17N87W...INCLUDING THE GULF OF HONDURAS...E TO SE WINDS 20 TO
25 KT. SEAS LESS THAN 8 FT.

.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WITHIN 16N86W TO 16N87W TO 17N88W TO 17N87W TO
16N86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.45 HOUR FORECAST CONDITIONS IMPROVE.

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

$$
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.