FZNT01 KWBC 170420
HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC MON NOV 17 2025
CCODE/2:31:04:01:00/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC NOV 17.
24 HOUR FORECAST VALID 0000 UTC NOV 18.
48 HOUR FORECAST VALID 0000 UTC NOV 19.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.LOW 45N65W 977 MB MOVING NE 10 KT. WITHIN 240 NM SE OF A FRONT
FROM 46N62W TO 43N59W TO 38N61W TO 33N72W WINDS 35 TO 50 KT. SEAS
3.5 TO 6.5 M. ELSEWHERE S OF 50N W OF 52W WINDS 25 TO 40 KT. SEAS
2.5 TO 5 M.
.24 HOUR FORECAST COMPLEX LOW INLAND WITH FIRST CENTER 50N62W 979
MB AND NEW SECOND CENTER 54N57W 976 MB. FROM 59N TO 61N BETWEEN
43W AND 54W WINDS 50 TO 65 KT. SEAS 5 TO 9.5 M. ELSEWHERE WITHIN
720 NM S QUADRANT OF FIRST CENTER...AND WITHIN 420 NM NE AND E
QUADRANTS OF SECOND CENTER WINDS 35 TO 50 KT. SEAS 4.5 TO 8
M...HIGHEST NEAR 40N59W. ELSEWHERE FROM 34N TO 64N BETWEEN 37W
AND 74W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST COMBINED LOW INLAND NEAR 57N66W 978 MB. WITHIN
60 NM NE OF A LINE FROM 60N50W TO 59N46W TO 59N55W WINDS 50 TO 60
KT. SEAS 6.5 TO 9 M IN SE SWELL. ELSEWHERE WITHIN 90 NM N AND NE
OF A LINE FROM 62N54W TO 59N48W TO 59N43W WINDS 35 TO 50 KT. SEAS
4 TO 8 M. ELSEWHERE N OF 35N BETWEEN 38W AND 65W...INCLUDING
WITHIN THE GULF OF SAINT LAWRENCE WINDS 25 TO 40 KT. SEAS 3 TO 7
M IN MIXED SWELL...HIGHEST NE OF CENTER AND NEAR 41N55W...EXCEPT
SEAS 2.5 TO 3.5 M WITHIN THE GULF OF SAINT LAWRENCE.
...STORM WARNING...
.LOW 50N45W 991 MB MOVING NW 25 KT. WITHIN 360 NM NE SEMICIRCLE
WINDS 35 TO 45 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE FROM 36N TO 59N E
OF 49W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 IN MIXED SWELL.
.12 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 54N45W 999 MB.
FROM 57N TO 61N BETWEEN 42W AND 53W WINDS 35 TO 50 KT. SEAS 5 TO
7.5 M. ELSEWHERE WITHIN 480 NM NE SEMICIRCLE AND 240 NM S
QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 6 M.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N57W IN
HURRICANE FORCE WIND WARNING ABOVE.
...GALE WARNING...
.LOW 57N63W 998 MB MOVING W 25 KT THEN DISSIPATING AFTER 06 HOURS
INLAND. WITHIN 60 NM NE OF A LINE FROM 61N54W AND 59N47W TO
59N44W WINDS 35 TO 45 KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN 420
NM NE QUADRANT AND WITHIN 180 NM N AND E OF A FRONT FROM LOW
CENTER TO 60N55W TO 58N47W WINDS 25 TO 40 KT. SEAS 3 TO 5.5
M...HIGHEST NE OF CENTER.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 54N57W IN
HURRICANE FORCE WIND WARNING ABOVE.
...GALE WARNING...
.WITHIN N OF 63N W OF 59W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST N OF 64N W OF 70W AREA OF NE TO E WINDS 20 TO
30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 56N64W ABOVE.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM E OF A
LINE FROM 57N48W TO 54N48W.
.24 HOUR FORECAST DENSE FOG FROM 43N TO 51N BETWEEN 44W AND
50W...AND W OF A LINE FROM 56N59W TO 58N56W TO 60N63W TO 64N62W.
.48 HOUR FORECAST DENSE FOG FROM 52N TO 58N BETWEEN 38W AND
46W...WITHIN 60 NM OF THE E GREENLAND COAST FROM 60N TO 63N...AND
N OF 62N W OF 60W.
.LIGHT FREEZING SPRAY N OF 64N W OF 58W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 64N W OF 58W AND N OF
64N E OF GREENLAND.
.48 HOUR FORECAST LITTLE CHANGE.
.FORECASTER HYDE. 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 0000 UTC MON NOV 17.
24 HOUR FORECAST VALID 0000 UTC TUE NOV 18.
48 HOUR FORECAST VALID 0000 UTC WED NOV 19.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N61W TO 31N79W TO 30N76W TO 29N74W TO 30N64W TO
31N61W SW TO W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 31N54W TO 31N71W TO 29N68W TO 28N62W TO
29N58W TO 31N54W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN NW
SWELL.
.48 HOUR FORECAST WITHIN 31N45W TO 31N66W TO 29N59W TO 30N54W TO
29N49W TO 31N45W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
SWELL.
.ATLC WITHIN 31N36W TO 31N56W TO 30N55W TO 28N46W TO 29N40W TO
31N36W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 31N38W TO 31N43W TO 30N43W TO 29N41W TO
31N38W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.33 HOUR FORECAST CONDITIONS IMPROVE.
.ATLC WITHIN 15N35W TO 14N37W TO 11N36W TO 11N37W TO 09N38W TO
08N35W TO 15N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N TO
NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST CONDITIONS IMPROVE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.
$$
