FZNT01 KWBC 172200
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC WED SEP 17 2025

CCODE/1:31:04:01:00/AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 1800 UTC SEP 17.
24 HOUR FORECAST VALID 1800 UTC SEP 18.
48 HOUR FORECAST VALID 1800 UTC SEP 19.

.WARNINGS.

...STORM WARNING...
.06 HOUR FORECAST INLAND LOW 58N66W 994 MB. WITHIN 360 NM E
QUADRANT WINDS 25 TO 40 KT. SEAS TO 3 M.
.18 HOUR FORECAST LOW 59N60W 988 MB. WITHIN 180 NM E SEMICIRCLE
WINDS 40 TO 55 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW 60N60W 981 MB. WITHIN 300 NM NE QUADRANT
WINDS 40 TO 55 KT. SEAS 3 TO 6 M. ELSEWHERE FROM 50N TO 64N W OF
43W WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 61N67W 988 MB.
WITHIN 90 NM NW OF A LINE FROM 62N55W TO 59N48W WINDS 40 TO 55
KT. SEAS 5 TO 8 M. ELSEWHERE N OF 60N W OF 60W AND FROM 54N TO
60N BETWEEN 40W AND 50W WINDS 25 TO 40 KT. SEAS 3 TO 6 M.

...GALE WARNING...
.LOW 54N39W 1005 MB MOVING SE 15 KT. WITHIN 60 NM W OF A LINE
FROM 62N40W TO 57N44W WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ELSEWHERE
FROM 50N TO 56N BETWEEN 40W AND 50W AND FROM 60N TO 64N E OF
GREENLAND WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW E OF AREA. FROM 42N TO 48N E OF 40W WINDS
TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.

.SYNOPSIS AND FORECAST.

.LOW 35N59W 1016 MB DRIFTING E 05 KT. WITHIN 180 NM N SEMICIRCLE
WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW 37N57W 1015 MB. WITHIN 120 NM NE SEMICIRCLE
WINDS LESS THAN 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY NEW LOW
DESCRIBED BELOW.

.LOW 37N77W 1014 MB MOVING N 05 KT. FROM 38N TO 42N W OF 70W
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 42N69W 1015 MB.
ASSOCIATED CONDITIONS DIMINISHED.

.48 HOUR FORECAST NEW LOW 52N53W 1001 MB. FROM 34N TO 54N BETWEEN
40W AND 52W AND FROM 45N TO 50N W OF 60W WINDS 20 TO 30 KT. SEAS
TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 61N TO 64N
BETWEEN GREENLAND AND 39W.
.24 HOUR FORECAST DENSE FOG N OF 57N W OF 59W.
.48 HOUR FORECAST DENSE FOG FROM 54N TO 60N BETWEEN 40W AND 50W
AND N OF 56N W OF 62W.

.FORECASTER KREKELER. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA

SYNOPSIS VALID 1800 UTC WED SEP 17.
24 HOUR FORECAST VALID 1800 UTC THU SEP 18.
48 HOUR FORECAST VALID 1800 UTC FRI SEP 19.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM GABRIELLE NEAR 19.4N 48.0W 1005 MB AT 2100 UTC
SEP 17 MOVING NW OR 310 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45
KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM E
SEMICIRCLE...0 NM SW QUADRANT AND 100 NM NW QUADRANT. SEAS 4 M OR
GREATER WITHIN 240 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE WITH
SEAS TO 5.0 M. ELSEWHERE...WITHIN 18N40W TO 23N45W TO 22N50W TO
18N50W TO 13N45W TO 14N41W TO 18N40W WINDS 20 TO 33 KT. SEAS 2.5
TO 4.0 M.
.24 HOUR FORECAST TROPICAL STORM GABRIELLE NEAR 21.7N 51.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 180 NM NE QUADRANT...150 NM SE QUADRANT...0 NM SW
QUADRANT...AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 300
NM NE QUADRANT...240 NM SE QUADRANT...AND 150 NM NW QUADRANT WITH
SEAS TO 5.5 M. ELSEWHERE...WITHIN 25N47W TO 25N52W TO 23N53W TO
20N52W TO 20N46W TO 22N45W TO 25N47W WINDS 20 TO 33 KT. SEAS 3.5
TO 4.0 M. REMAINDER OF AREA...WITHIN 26N46W TO 27N51W TO 21N55W
TO 17N51W TO 17N46W TO 19N43W TO 26N46W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 M IN MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM GABRIELLE NEAR 23.5N 55.5W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 90 NM NW AND SE QUADRANTS...130 NM NE QUADRANT AND 0
NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 300 NM NE
QUADRANT...240 NM SE QUADRANT...AND 150 NM NW QUADRANT WITH SEAS
TO 6.0 M. ELSEWHERE...WITHIN 26N53W TO 26N56W TO 24N57W TO 22N55W
TO 23N53W TO 23N50W TO 26N53W WINDS 20 TO 33 KT. SEAS 3.5 TO 4.0
M. REMAINDER OF AREA...WITHIN 25N48W TO 29N55W TO 24N60W TO
21N59W TO 20N56W TO 21N47W TO 25N48W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.5 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 KONARIK. NATIONAL HURRICANE CENTER.

$$