655
FZNT01 KWBC 202229 CCA
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SUN SEP 20 2026

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20.
24 HOUR FORECAST VALID 1800 UTC SEP 21.
48 HOUR FORECAST VALID 1800 UTC SEP 22.

.WARNINGS.

...STORM WARNING...
.LOW 57N40W 979 MB MOVING NE 20 KT. WITHIN 120 NM NW QUADRANT
AND BETWEEN 180 NM AND 600 NM S AND SW QUADRANTS 35 TO 50 KT.
SEAS 6 TO 9 M. ALSO FROM 44N TO 62N E OF 53W WINDS 25 TO 35 KT.
SEAS 3 TO 6.5 M. ELSEWHERE FROM 37N TO 62N E OF 57W WINDS TO 25
KT. SEAS TO 3.5 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER JUST E OF AREA
NEAR 63N32W 980 MB. WITHIN 120 NM NW QUADRANT AND BETWEEN 240 NM
AND 420 NM S AND SW QUADRANTS WINDS 35 TO 45 KT. SEAS 3 TO 6 M.
ALSO N OF 52N E OF 51W WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M.
ELSEWHERE N OF 33N E OF 57W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5
M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 62N38W 998 MB AND
SECOND CENTER E OF AREA NEAR 65N27W 993 MB. FROM 58N TO 61N E OF
44W WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ALSO N OF 55N E OF 49W
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE N OF 53N E OF 53W
WINDS TO 25 KT. SEAS TO 3.5 M.

...STORM WARNING...
.36 HOUR FORECAST NEW COMPLEX LOW WITH FIRST CENTER 48N41W 1008
MB AND SECOND CENTER NEAR 31N52W 1012 MB. WITHIN 240 NM SE
QUADRANT AND 300 NM NM NW QUADRANT OF FIRST CENTER INCLUDING THE
GULF OF SAINT LAWRENCE AND WITHIN 180 NM SE QUADRANT WINDS 25 TO
35 KT. SEAS TO 3 M.
.48 HOUR FORECAST NEW COMPLEX LOW WITH FIRST CENTER NEAR 50N46W
998 MB AND SECOND CENTER NEAR 42N46W 1008 MB. WITHIN 120 NM NW
SEMICIRCLE AND 360 NM SE QUADRANT OF FIRST CENTER WINDS 35 TO 50
KT. SEAS 2.5 TO 5 M. ELSEWHERE FROM 40N TO 51N BETWEEN 40W AND
58W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST.

.TROPICAL STORM FAY E OF AREA NEAR 34.4N 32.7W 999 MB AT 2100
UTC SEP 20 MOVING NE OR 20 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS
55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E
SEMICIRCLE. ELSEWHERE FROM 34N TO 36N E OF 36W WINDS TO 25 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST TROPICAL STORM FAY E OF AREA NEAR 33.6N 32.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 30 NM NE QUADRANT...20 NM SE QUADRANT...20 NM SW
QUADRANT...AND 20 NM NW QUADRANT. SEAS 4 M OR GREATER E OF AREA
WITH SEAS TO 5 M. ELSEWHERE S OF 36N E OF 36W WINDS 20 TO 33 KT.
SEAS TO 3 M.
.48 HOUR FORECAST TROPICAL STORM FAY E OF AREA NEAR 31.4N 35.1W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 20 NM NE QUADRANT...AND 20 NM NW QUADRANT. SEAS 4 M
OR GREATER WITHIN 120 NM N SEMICIRCLE WITH SEAS TO 4.5 M.
ELSEWHERE S OF 40N E OF 44W WINDS 20 TO 33 KT. SEAS TO 4 M.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.N OF 65N E OF GREENLAND WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH STORM WARNING ABOVE.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM NW OF A LINE FROM
61N41W TO 64N39W TO 65N35W.
.24 HOUR FORECAST DENSE FOG N OF 61N E OF 40W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.FORECASTER HYDE. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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

SYNOPSIS VALID 1800 UTC SUN SEP 20.
24 HOUR FORECAST VALID 1800 UTC MON SEP 21.
48 HOUR FORECAST VALID 1800 UTC TUE SEP 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLANTIC TROPICAL STORM FAY N OF AREA NEAR 34.4N 32.7W 999 MB
AT 2100 UTC SEP 20 MOVING NNE OR 020 DEG AT 5 KT. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM E SEMICIRCLE AND 0 NM W SEMICIRCLE. SEAS TO 4 M
WITHIN 0 NM OF CENTER EXCEPT 60 NM NE QUADRANT.
.24 HOUR FORECAST TROPICAL STORM FAY N OF AREA NEAR 33.6N 32.5W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 20 NM OF CENTER EXCEPT 30 NM NE QUADRANT.
.42 HOUR FORECAST TROPICAL STORM FAY NEAR 31.9N 34.3W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. OVER FORECAST WATERS WITHIN
31N35W TO 31N43.5W TO 30N39W TO 30.5N38W TO 30.5N35W TO 31N35W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.48 HOUR FORECAST TROPICAL STORM FAY NEAR 31.4N 35.1W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 20 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. OVER FORECAST
WATERS WITHIN 31N35W TO 31N41W TO 29N39W TO 30N38W TO 30N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.