342 
FZNT02 KNHC 202138
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC MON SEP 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MON SEP 20.
24 HOUR FORECAST VALID 1800 UTC TUE SEP 21.
48 HOUR FORECAST VALID 1800 UTC WED SEP 22.

.WARNINGS.

...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM PETER NEAR 20.0N 61.8W 1007 MB AT 2100 UTC SEP
20 MOVING WNW OR 290 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM OF CENTER
EXCEPT 110 NM NE QUADRANT. SEAS 12 FT OR GREATER WITHIN 0 NM S 
SEMICIRCLE...150 NM NE QUADRANT AND 60 NM NW QUADRANT WITH SEAS 
TO 14 FT. ELSEWHERE WITHIN 20N59W TO 20N62W TO 22N64W TO 23N63W 
TO 22N59W TO 20N59W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA WITHIN 20N58W TO 19N59W TO 19N63W TO 22N64W TO 24N59W TO
20N58W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN E TO SE SWELL.
.24 HOUR FORECAST TROPICAL STORM PETER NEAR 21.4N 65.4W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM OF CENTER EXCEPT 100 NM NE QUADRANT. SEAS 12 FT OR 
GREATER WITHIN 0 NM S SEMICIRCLE...120 NM NE QUADRANT AND 45 NM 
NW QUADRANT WITH SEAS TO 13 FT. ELSEWHERE WITHIN 21N64W TO 23N67W
TO 24N67W TO 25N64W TO 23N63W TO 21N64W WINDS 20 TO 33 KT. SEAS 
9 TO 11 FT. REMAINDER OF AREA WITHIN 22N63W TO 21N66W TO 23N68W 
TO 26N67W TO 25N63W TO 22N63W WINDS 20 KT OR LESS. SEAS 8 TO 10 
FT IN NE TO E SWELL.
.48 HOUR FORECAST TROPICAL STORM PETER NEAR 23.1N 68.0W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM OF CENTER EXCEPT 70 NM NE QUADRANT. SEAS TO 12 FT 
WITHIN 90 NM NE QUADRANT. ELSEWHERE WITHIN 150 NM NE SEMICIRCLE E
TO SE WINDS 20 TO 33 KT. SEAS 8 TO 10 FT. REMAINDER OF AREA 
WITHIN 24N66W TO 24N69W TO 26N70W TO 25N68W TO 26N65W TO 24N66W 
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N TO NE SWELL.
.72 HOUR FORECAST TROPICAL DEPRESSION PETER NEAR 25.1N 68.0W. 
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 27.8N 66.9W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.120 HOUR FORECAST TROPICAL STORM PETER NEAR 30.5N 65.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

...ATLANTIC TROPICAL STORM WARNING...
.TROPICAL STORM ROSE NEAR 18.4N 34.4W 1007 MB AT 2100 UTC SEP 20
MOVING NW OR 320 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 30 NM OF CENTER
EXCEPT 0 NM NW QUADRANT. SEAS TO 12 FT WITHIN 0 NM OF CENTER 
EXCEPT 60 NM NE QUADRANT.
.24 HOUR FORECAST TROPICAL STORM ROSE NEAR 21.8N 36.7W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM W SEMICIRCLE...50 NM NE QUADRANT AND 40 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 60 NM NE QUADRANT WITH 
SEAS TO 13 FT. ELSEWHERE WITHIN 22N35W TO 21N37W TO 23N37W TO 
23N36W TO 23N35W TO 22N35W WINDS 20 TO 33 KT. SEAS 9 TO 10 FT. 
REMAINDER OF AREA WITHIN 21N35W TO 20N36W TO 21N38W TO 23N37W TO 
24N35W TO 21N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E TO SE 
SWELL.
.48 HOUR FORECAST TROPICAL DEPRESSION ROSE NEAR 24.5N 38.9W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 120 NM NE 
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 9 TO 11 FT. ELSEWHERE WITHIN 
24N37W TO 24N40W TO 27N41W TO 29N38W TO 26N36W TO 24N37W WINDS 20
KT OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL.
.72 HOUR FORECAST TROPICAL DEPRESSION ROSE NEAR 27.3N 40.2W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL DEPRESSION ROSE NEAR 29.2N 38.8W. 
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 31.5N 
34.5W. 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 18 HOUR FORECAST WITHIN 30N60W TO 29N63W TO 30N65W TO
31N66W TO 31N53W TO 30N60W WINDS 20 KT OR LESS. SEAS 8 FT IN N 
TO NE SWELL.
.24 HOUR FORECAST WITHIN 30N54W TO 30N59W TO 30N66W TO 31N65W TO
31N50W TO 30N54W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.48 HOUR FORECAST WITHIN 27N42W TO 28N57W TO 26N70W TO 31N69W TO
31N35W TO 27N42W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N 
SWELL.

.GULF OF MEXICO 42 HOUR FORECAST WITHIN 29N93W TO 28N95W TO
28N96W TO 29N94W TO 29N93W N TO NE WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.48 HOUR FORECAST WITHIN 27N93W TO 26N96W TO 27N97W TO 28N95W TO
29N93W TO 27N93W N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.