HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC TUE OCT 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH
ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 4 METERS OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH, AND
ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER CONDITIONS
WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE
CONTINUITY WHERE APPROPRIATE.
SECURITE
NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W
ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS
SYNOPSIS VALID 0000 UTC OCT 13.
24 HOUR FORECAST VALID 0000 UTC OCT 14.
48 HOUR FORECAST VALID 0000 UTC OCT 15.
.WARNINGS.
...STORM WARNING...
.LOW 43N54W 989 MB MOVING NE 50 KT AND RAPIDLY INTENSIFYING.
WITHIN 300 NM S AND SE QUADRANTS WINDS 35 TO 50 KT. SEAS 3 TO 5.5
M. ALSO WITHIN 420 NM SE SEMICIRCLE AND BETWEEN 180 NM AND 540 NM
NW QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE...EXCEPT WHERE OTHERWISE DESCRIBED...FROM 32N TO 52N
BETWEEN 44W AND 74W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW E OF AREA WITH MAIN CENTER 55N27W
964 MB. CONDITIONS E OF AREA.
...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 50N40W 964 MB NEARLY STATIONARY
AND SECOND CENTER 60N48W 973 MB MOVING SE 15 KT. WITHIN 90 NM OF
THE E GREENLAND COAST N OF 61N...WITHIN 180 NM S SEMICIRCLE OF
FIRST CENTER...AND WITHIN 240 NM SW AND 300 NM NW QUADRANTS OF
SECOND CENTER WINDS 35 TO 50 KT. SEAS 4 TO 8.5 M...HIGHEST SW OF
SECOND CENTER. ALSO N OF 52N E OF 44W...AND N OF 50N W OF 44W
WINDS 25 TO 35 KT. SEAS 3 TO 6 M. ELSEWHERE N OF 50N W OF 35W
WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 60N39W 978
MB. WITHIN 90 NM SW SEMICIRCLE...AND WITHIN 300 NM EITHER SIDE OF
A LINE FROM 51N35W TO 52N43W TO 62N56W WINDS 25 TO 40 KT. SEAS 3
TO 7 M...HIGHEST NEAR 52N48W. ELSEWHERE FROM 45N TO 64N E OF
61W...AND N OF 63N E OF GREENLAND WINDS TO 25 KT. SEAS 2.5 TO 5.5
M.
.48 HOUR FORECAST LOW E OF AREA AND NEW LOW TO FORM NEAR 61N42W
986 MB. WITHIN 150 NM SW SEMICIRCLE WINDS 30 TO 45 KT. SEAS 4 TO
6.5 M. ALSO FROM 50N TO 60N E OF 49W WINDS 25 TO 35 KT. SEAS 3 TO
6 M...HIGHEST ALONG 35W. ELSEWHERE FROM 33N TO 61N E OF 53W WINDS
TO 25 KT. SEAS 2.5 TO 5 M.
...GALE WARNING...
.LOW 50N43W 990 MB MOVING NE 35 KT AND INTENSIFYING. WITHIN 240
NM SE QUADRANT WINDS 35 TO 45 KT. SEAS 4 TO 6.5 M. ALSO WITHIN
360 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5 M.
ELSEWHERE FROM 40N TO 52N E OF 46W WINDS TO 25 KT. SEAS 3 TO 5
M.
.24 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 40N62W 1001 MB MOVING NE 35 KT.
WITHIN 300 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
ELSEWHERE CONDITIONS DESCRIBED WITH LOW 43N54W ABOVE.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 39N43W 1009
MB. FROM 33N TO 45N E OF 59W WINDS 25 TO 35 KT. SEAS 3 TO 6.5
M...HIGHEST NEAR 46N38W. ELSEWHERE S OF 45N E OF 65W WINDS TO 25
KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA.
...GALE WARNING...
.30 HOUR FORECAST NEW LOW NEAR 43N70W 1012 MB. WITHIN 300 NM E
AND S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 47N63W 998 MB. WITHIN 420 NM E AND SE
QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE WITHIN
600 NM SE SEMICIRCLE WINDS TO 25 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 55N E OF
54W...AND WITHIN 180 NM EITHER SIDE OF A LINE FROM 55N57W TO
59N45W TO 65N35W.
.24 HOUR FORECAST DENSE FOG N OF 58N E OF 44W...AND FROM 41N TO
46N W OF 63W.
.48 HOUR FORECAST DENSE FOG FROM 43N TO 58N BETWEEN 53W AND
66W...AND N OF A LINE FROM 60N63W TO 62N57W TO 62N50W.
.LIGHT FREEZING SPRAY N OF 62N W OF 60W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 65N WITHIN 60 NM OF
THE CANADIAN COAST.
.48 HOUR FORECAST LIGHT FREEZING SPRAY WITHIN 60 NM OF E
GREENLAND COAST N OF 65N.
.FORECASTER ANDERSON. 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 TUE OCT 13.
24 HOUR FORECAST VALID 0000 UTC WED OCT 14.
48 HOUR FORECAST VALID 0000 UTC THU OCT 15.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N36W TO 31N47W TO 27N54W TO 26N50W TO 27N44W TO
29N39W TO 31N36W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO
N SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.ATLC 30 HOUR FORECAST WITHIN 25N35W TO 23N36W TO 22N37W TO
21N36W TO 21N35W TO 25N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN S TO SW SWELL.
.48 HOUR FORECAST LITTLE CHANGE.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER ERA. NATIONAL HURRICANE CENTER.
$$