563 
FZNT02 KNHC 222219
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC WED SEP 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC WED SEP 22.
24 HOUR FORECAST VALID 1800 UTC THU SEP 23.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 24.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL DEPRESSION EIGHTEEN E OF AREA NEAR 10.1N 33.9W 1008 MB
AT 2100 UTC SEP 22 MOVING W OR 270 DEG AT 13 KT. MAXIMUM 
SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 15N35W TO 13N35W TO 
10N35W TO 12N36W TO 14N37W TO 15N35W NE WINDS 2O TO 30 KT.
SEAS 8 TO 10 FT.
.12 HOUR FORECAST TROPICAL STORM EIGHTEEN NEAR 10.1N 36.0W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 30 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS TO 12
FT WITHIN AREA OF TROPICAL STORM FORCE WINDS. ELSEWHERE WITHIN 
14N38W TO 16N35W TO 13N35W TO 10N35W TO 10N40W TO 14N38W WINDS 20
TO 33 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST TROPICAL STORM EIGHTEEN NEAR 10.5N 38.6W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM N SEMICIRCLE WITH 
SEAS TO 14 FT. ELSEWHERE WITHIN 10N36W TO 10N39W TO 10N41W TO 
13N41W TO 14N36W TO 10N36W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST TROPICAL STORM EIGHTEEN NEAR 11.7N 43.4W. 
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE 
WINDS WITHIN 80 NM NE QUADRANT...50 NM SE QUADRANT...20 NM SW 
QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90
NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH SEAS TO 16 FT. 
ELSEWHERE WITHIN 12N42W TO 11N44W TO 12N44W TO 13N44W TO 14N43W 
TO 12N42W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
WITHIN 11N42W TO 11N46W TO 15N45W TO 17N43W TO 16N40W TO 11N42W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.60 HOUR FORECAST HURRICANE EIGHTEEN NEAR 12.4N 45.3W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.72 HOUR FORECAST HURRICANE EIGHTEEN NEAR 13.0N 46.8W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. EXTENDED OUTLOOK...USE FOR 
GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE EIGHTEEN NEAR 14.2N 49.5W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
.120 HOUR FORECAST HURRICANE EIGHTEEN NEAR 16.0N 52.5W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT.

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 TROPICAL DEPRESSION PETER NEAR 21.7N 66.7W 1008 MB AT 2100
UTC SEP 22 MOVING NNW OR 340 DEG AT 4 KT. MAXIMUM SUSTAINED 
WINDS 30 KT GUSTS 40 KT. WITHIN 21N65W TO 20N67W TO 24N69W TO 
24N66W TO 23N64W TO 21N65W WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW PETER NEAR 22.5N 
66.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 23N65W 
TO 24N67W TO 24N68W TO 26N67W TO 24N65W TO 23N65W SE WINDS 20 TO 
25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW PETER NEAR 23.5N 
66.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. LITTLE CHANGE 
IN CONDITIONS.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW PETER NEAR 25.6N 
65.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 27N64W 
TO 28N66W TO 29N66W TO 30N65W TO 28N64W TO 27N64W E TO SE WINDS 
20 TO 25 KT. SEAS TO 8 FT.
.60 HOUR FORECAST...REMNANT LOW DISSIPATED.

.ATLC TROPICAL DEPRESSION ROSE NEAR 24.2N 40.2W 1010 MB AT 2100 
UTC SEP 22 MOVING WNW OR 300 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. WITHIN 24N36W TO 23N38W TO 25N39W TO 26N39W 
TO 25N36W TO 24N36W WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE
WITHIN 29N40W TO 27N52W TO 29N67W TO 31N69W TO 31N38W TO 29N40W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 26.7N 
41.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 26N39W
TO 26N41W TO 27N42W TO 29N41W TO 28N39W TO 26N39W WINDS 20 TO 25
KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN 27N35W TO 24N44W TO 31N45W
TO 29N39W TO 31N35W TO 27N35W WINDS 20 KT OR LESS. SEAS 8 TO 10
FT IN NW TO N SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 29.0N 
39.3W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 29N36W 
TO 27N37W TO 28N39W TO 31N37W TO 31N36W TO 29N36W S TO SW WINDS 
20 TO 25 KT. SEAS TO 8 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 30.1N 
34.1W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. EXTENDED 
OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 31.9N 
30.4W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST..REMNANT LOW DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.ATLC WITHIN 29N61W TO 29N65W TO 29N66W TO 31N66W TO 31N62W TO 
29N61W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. 
WITHIN 29N40W TO 27N52W TO 29N67W TO 31N69W TO 31N38W TO 29N40W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 24N45W TO 25N48W TO 29N51W TO 30N56W TO
31N45W TO 24N45W E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.
.48 HOUR FORECAST WITHIN 29N59W TO 27N64W TO 28N66W TO 31N66W TO
31N57W TO 29N59W E TO SE WINDS 20 TO 25 KT. SEAS 8 FT IN NE 
SWELL.

.GULF OF MEXICO COLD FRONT FROM 30N86W TO 27N92W TO 23N98W.
WITHIN 28N93W TO 27N95W TO 28N97W TO 29N95W TO 30N92W TO 28N93W 
N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST COLD FRONT FRONT FROM 29N83W TO 22N97W. WINDS 
20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 27N83W TO 19N96W. WITHIN 
20N95W TO 19N95W TO 19N96W TO 20N96W TO 21N96W TO 20N95W...INCLUDING
WITHIN 60 NM OF VERACRUZ...NW WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.36 HOUR FORECAST COLD FRONT FROM 26.5N82W TO 23N97W THEN 
STATIONARY FRONT TO 18N95W. WINDS 20 KT OR LESS. SEAS LESS THAN 8
FT.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.