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High Seas Forecast (Tropical Atlantic)



000
FZNT02 KNHC 210959
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC TUE SEP 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC TUE SEP 21.
24 HOUR FORECAST VALID 0600 UTC WED SEP 22.
48 HOUR FORECAST VALID 0600 UTC THU SEP 23.

.WARNINGS.

...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM PETER NEAR 19.6N 63.8W 1007 MB AT 0900 UTC SEP 21
MOVING W OR 265 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER 
EXCEPT 150 NM NE QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM S 
SEMICIRCLE...150 NM NE QUADRANT AND 120 NM NW QUADRANT WITH SEAS 
TO 14 FT. ELSEWHERE WITHIN 19N61W TO 18N62W TO 21N67W TO 24N65W 
TO 23N60W TO 19N61W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST TROPICAL STORM PETER NEAR 21.2N 66.9W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM OF CENTER EXCEPT 100 NM NE QUADRANT. SEAS TO 12 FT 
WITHIN 90 NM IN THE NE QUADRANT. ELSEWHERE WITHIN 21N66W TO 
21N68W TO 25N68W TO 25N66W TO 23N64W TO 21N66W WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT.
.48 HOUR FORECAST TROPICAL STORM PETER NEAR 23.2N 68.2W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM OF CENTER EXCEPT 60 NM NE QUADRANT. SEAS TO 12 FT WITHIN
90 NM IN THE NE QUADRANT. ELSEWHERE WITHIN 23N66W TO 23N68W TO 
25N69W TO 25N68W TO 25N67W TO 23N66W WINDS 20 TO 33 KT. SEAS 8 TO
12 FT.
.60 HOUR FORECAST TROPICAL DEPRESSION PETER NEAR 24.0N 68.0W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.72 HOUR FORECAST TROPICAL DEPRESSION PETER NEAR 25.2N 67.2W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION PETER NEAR 27.2N 65.8W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL DEPRESSION PETER NEAR 29.2N 64.2W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM ROSE NEAR 21.0N 36.4W 1006 MB AT 0900 UTC SEP 21
MOVING NW OR 325 DEG AT 17 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM E SEMICIRCLE...40
NM SW QUADRANT AND 0 NM NW QUADRANT. SEAS TO 12 FT WITHIN 90 NM 
NE QUADRANT. ELSEWHERE WITHIN 19N35W TO 19N36W TO 20N37W TO 
22N37W TO 22N35W TO 19N35W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST TROPICAL STORM ROSE NEAR 23.8N 38.3W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS 12 FT OR 
GREATER WITHIN 120 NM NE AND 60 NM NW QUADRANTS WITH SEAS TO 14 
FT. ELSEWHERE WITHIN 23N36W TO 23N39W TO 25N40W TO 26N38W TO
26N35W TO 23N36W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST TROPICAL DEPRESSION ROSE NEAR 25.0N 39.5W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.48 HOUR FORECAST TROPICAL DEPRESSION ROSE NEAR 26.4N 40.6W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 12 FT WITHIN 
90 NM E QUADRANT. ELSEWHERE WITHIN 25N39W TO 25N42W TO 27N42W TO 
28N40W TO 27N38W TO 25N39W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST TROPICAL DEPRESSION ROSE NEAR 29.0N 40.4W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 30.7N
36.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 32.8N
31.4W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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 WITHIN 30N61W TO 29N62W TO 29N66W TO 31N66W TO 31N62W TO
30N61W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST COLD FRONT FROM 31N45W TO 28.5N61N. WITHIN 
29N49W TO 29N56W TO 30N66W TO 31N67W TO 31N42W TO 29N49W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
.48 HOUR FORECAST STATIONARY FRONT FROM 31N45W TO 28.5N61N. WITHIN
24N36W TO 24N50W TO 25N54W TO 31N61W TO 31N35W TO 24N36W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.

.GULF OF MEXICO 30 HOUR FORECAST COLD FRONT FROM 30N86W TO
26N97W. WITHIN 28N91W TO 27N94W TO 27N97W TO 29N97W TO 30N94W TO
28N91W N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST COLD FRONT FROM 29N83W TO 21N97W. WITHIN 
25N94W TO 25N96W TO 26N96W TO 27N95W TO 26N94W TO 25N94W WINDS 20
KT OR LESS. SEAS 8 FT IN N TO NE SWELL.

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

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.