164 
FZNT02 KNHC 271018
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC WED SEP 27 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 WED SEP 27.
24 HOUR FORECAST VALID 0600 UTC THU SEP 28.
48 HOUR FORECAST VALID 0600 UTC FRI SEP 29.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM PHILIPPE NEAR 17.6N 52.7W 1003 MB AT 0900 UTC 
SEP 27 MOVING W OR 280 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 40 
KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W 
SEMICIRCLE...180 NM NE QUADRANT AND 170 NM SE QUADRANT. SEAS 12 
FT OR GREATER WITHIN 300 NM NE QUADRANT...180 NM SE 
QUADRANT...120 NM SW QUADRANT...AND 330 NM NW QUADRANT WITH SEAS 
TO 19 FT. ELSEWHERE WITHIN 22N48W TO 23N55W TO 19N56W TO 16N55W 
TO 15N51W TO 17N48W TO 22N48W WINDS 20 TO 33 KT. SEAS 10 TO 14 
FT. REMAINDER OF AREA WITHIN 22N42W TO 26N51W TO 24N59W TO 19N61W
TO 14N58W TO 16N47W TO 22N42W WINDS 20 KT OR LESS. SEAS 8 TO 11 
FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM PHILIPPE NEAR 19.1N 55.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM W SEMICIRCLE...130 NM NE QUADRANT AND 110 NM SE
QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM NE QUADRANT... 120
NM SE QUADRANT...0 NM SW QUADRANT AND 210 NM NW QUADRANT WITH 
SEAS TO 17 FT. ELSEWHERE WITHIN 22N51W TO 24N53W TO 24N57W TO 
20N59W TO 17N58W TO 18N52W TO 22N51W WINDS 20 TO 33 KT. SEAS 9 TO
13 FT. REMAINDER OF AREA WITHIN 22N47W TO 26N52W TO 25N61W TO 
18N62W TO 16N59W TO 18N50W TO 22N47W WINDS 20 KT OR LESS. SEAS 8 
TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM PHILIPPE NEAR 19.6N 58.6W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM W SEMICIRCLE...100 NM NE QUADRANT AND 70 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE QUADRANT...60 NM
SE QUADRANT...0 NM SW QUADRANT AND 120 NM NW QUADRANT WITH SEAS 
TO 13 FT. ELSEWHERE WITHIN 22N56W TO 24N57W TO 22N61W TO 18N59W 
TO 18N58W TO 19N56W TO 22N56W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
REMAINDER OF AREA WITHIN 25N51W TO 30N57W TO 28N63W TO 24N67W TO
20N64W TO 18N57W TO 25N51W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT 
IN MIXED SWELL.
.60 HOUR FORECAST TROPICAL DEPRESSION PHILIPPE NEAR 19.5N 60.3W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW PHILIPPE NEAR 19.4N 
62.0W. 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 PHILIPPE NEAR 19.0N 
64.4W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST POST-TROPICAL REMNANT LOW PHILIPPE NEAR 19.0N
66.5W. 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.

...ATLC GALE WARNING...
.ATLC LOW PRES NEAR 11N42W 1007 MB. WITHIN 16N37W TO 18N41W TO 
15N44W TO 10N44W TO 09N43W TO 12N37W TO 16N37W E TO SE WINDS 20 
TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 22N35W TO 22N40W TO 
15N47W TO 10N44W TO 10N37W TO 13N35W TO 22N35W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.ATLC 18 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE... 
NEAR 13N44.5W 1005 MB. FROM 13N TO 15N BETWEEN 43W AND 45W SE 
WINDS 30 TO 35 KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 16N40W TO 
18N44W TO 16N46W TO 11N45W TO 11N42W TO 14N39W TO 16N40W WINDS 20
TO 30 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 19N39W TO 
22N46W TO 17N49W TO 11N45W TO 12N40W TO 15N37W TO 19N39W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N45W 1003 MB. WITHIN 15N44W TO 16N44W TO 15N46W TO 14N46W TO 
13N45W TO 13N44W TO 15N44W WINDS 30 TO 40 KT. SEAS 12 TO 15 FT.
ELSEWHERE WITHIN 17N40W TO 20N43W TO 18N47W TO 14N47W TO 11N46W 
TO 12N42W TO 17N40W WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. REMAINDER
OF AREA WITHIN 21N42W TO 22N46W TO 18N49W TO 12N46W TO 13N41W TO
16N38W TO 21N42W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED 
SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
16N47W 1001 MB. WITHIN 17N45W TO 18N46W TO 17N48W TO 15N48W TO 
15N47W TO 15N45W TO 17N45W WINDS 30 TO 45 KT. SEAS 14 TO 19 FT.
ELSEWHERE WITHIN 17N43W TO 20N45W TO 20N48W TO 16N49W TO 14N47W 
TO 14N43W TO 17N43W WINDS 20 TO 30 KT. SEAS 11 TO 16 FT.
REMAINDER OF AREA WITHIN 21N42W TO 24N50W TO 20N52W TO 15N49W TO
14N44W TO 17N42W TO 21N42W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT
IN MIXED SWELL.

.SYNOPSIS AND FORECAST.

.ATLC 15 HOUR FORECAST WITHIN 31N78W TO 31N81W TO 30N81W TO
31N78W NE WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST WITHIN 31N78W TO 31N81.5W TO 30.5N79W TO 
31N78W NE WINDS 20 TO 25 KT. SEAS 8 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.ATLC 24 HOUR FORECAST WITHIN 31N53W TO 31N59W TO 30N58W TO
30N55W TO 31N53W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E
SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

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

$$
.FORECASTER HAGEN. NATIONAL HURRICANE CENTER.