FZNT02 KNHC 180440
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU SEP 18 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 AMERICA

SYNOPSIS VALID 0000 UTC THU SEP 18.
24 HOUR FORECAST VALID 0000 UTC FRI SEP 19.
48 HOUR FORECAST VALID 0000 UTC SAT SEP 20.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM GABRIELLE NEAR 19.5N 49.5W 1004 MB AT 0300 UTC
SEP 18 MOVING WNW OR 300 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS
45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM NE
QUADRANT...180 NM SE QUADRANT...30 NM SW QUADRANT...AND 150 NM
NW QUADRANT.  SEAS 4 M OR GREATER WITHIN 240 NM E SEMICIRCLE...0
NM SW QUADRANT AND 90 NM NW QUADRANT WITH SEAS TO 5.5 M.
ELSEWHERE WITHIN 21N43W TO 23N44W TO 23N49W TO 21N50W TO 18N48W
TO 16N45W TO 21N43W WINDS 20 TO 33 KT. SEAS 4.0 TO 5.5 M.
REMAINDER OF AREA WITHIN 22N42W TO 21N51W TO 18N51W TO 14N46W TO
14N44W TO 17N41W TO 22N42W WINDS 20 KT OR LESS. SEAS 2.5 TO 4.0
M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM GABRIELLE NEAR 21.3N 52.9W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 140 NM NE QUADRANT...110 NM SE QUADRANT...0 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 210
NM E SEMICIRCLE...0 NM SW QUADRANT AND 90 NM NW QUADRANT WITH
SEAS TO 6.0 M. ELSEWHERE WITHIN 25N48W TO 26N52W TO 24N54W TO
21N53W TO 21N48W TO 22N46W TO 25N48W WINDS 20 TO 33 KT. SEAS 4.0
TO 6.0 M. REMAINDER OF AREA WITHIN 26N46W TO 27N53W TO 21N56W TO
19N54W TO 21N50W TO 20N45W TO 26N46W WINDS 20 KT OR LESS. SEAS
2.5 TO 4.0 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM GABRIELLE NEAR 23.3N 56.9W.
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE
WINDS WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...0 NM SW
QUADRANT...AND 60 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 210
NM E SEMICIRCLE...0 NM SW QUADRANT AND 90 NM NW QUADRANT WITH
SEAS TO 6.5 M. ELSEWHERE WITHIN 25N53W TO 26N57W TO 25N58W TO
23N58W TO 22N56W TO 23N53W TO 25N53W WINDS 20 TO 33 KT. SEAS 4.0
TO 6.5 M. REMAINDER OF AREA WITHIN 27N49W TO 30N54W TO 29N59W TO
22N61W TO 20N59W TO 21N50W TO 27N49W WINDS 20 KT OR LESS. SEAS
2.5 TO 4.0 M IN MIXED SWELL.

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.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

$$
.FORECASTER ERA. NATIONAL HURRICANE CENTER.