HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC THU OCT 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 15.
24 HOUR FORECAST VALID 1200 UTC OCT 16.
48 HOUR FORECAST VALID 1200 UTC OCT 17.
.WARNINGS.
...STORM WARNING...
.LOW 48N56W 989 MB MOVING NE 20 KT. FROM 43N TO 51N BETWEEN 47W
AND 54W AND FROM 41N TO 50N BETWEEN 59W AND 67W WINDS 25 TO 40
KT. SEAS 3 TO 5.5 M. ELSEWHERE WITHIN 540 NM E SEMICIRCLE AND 900
NM W AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 52N48W 974 MB. WITHIN 300 NM SW SEMICIRCLE
WINDS 35 TO 50 KT. SEAS 5 TO 8 M. ELSEWHERE FROM 41N TO 59N
BETWEEN 35W AND 58W WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW 60N41W 972 MB. FROM 53N TO 59N BETWEEN 37W
AND 46W WINDS 35 TO 50 KT. SEAS 6 TO 9.5 M. ELSEWHERE N OF A LINE
FROM 47N35W TO 50N44W TO 64N60W WINDS 25 TO 40 KT. SEAS 3 TO 6
M...EXCEPT S OF 50N E OF 47W SEAS 4 TO 7.5 M.
...GALE WARNING...
.LOW 61N41W 995 MB MOVING NE 20 KT. FROM 57N TO 60N BETWEEN 35W
AND 44W WINDS 25 TO 40 KT. SEAS 3.5 TO 6.5 M.
.24 HOUR FORECAST LOW AND CONDITIONS E OF THE FORECAST AREA.
...GALE WARNING...
.12 HOUR FORECAST LOW 63N56W 992 MB. W OF A LINE FROM 58N58W TO
62N64W WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 64N54W 993 MB. N OF 61N W OF 51W WINDS 20
TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
...GALE WARNING...
.48 HOUR FORECAST LOW INLAND NEAR 51N61W 986 MB. FROM 39N TO 51N
BETWEEN 52W AND 65W WINDS 25 TO 35 KT. SEAS TO 4 M.
.SYNOPSIS AND FORECAST.
.FROM 37N TO 43N BETWEEN 35W AND 44W WINDS 20 TO 30 KT. SEAS TO 4
M.
.24 HOUR FORECAST CONDITIONS ABSORBED INTO STORM WARNING ABOVE.
DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 50N
BETWEEN 52N AND 57W.
.24 HOUR FORECAST DENSE FOG N AND NE OF A LINE FROM 59N51W TO
66N62W.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 57N43W TO 65N35W AND
WITHIN 120 NM EITHER SIDE OF A LINE FROM 53N53W TO 43N64W.
.LIGHT FREEZING SPRAY N OF 64N BETWEEN 40W AND 36W.
.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF A LINE FROM 64N40W TO
65N35W AND N OF 62N W OF 62W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 58N W OF 62W.
.FORECASTER COLLINS. 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 1200 UTC THU OCT 15.
24 HOUR FORECAST VALID 1200 UTC FRI OCT 16.
48 HOUR FORECAST VALID 1200 UTC SAT OCT 17.
.WARNINGS.
...GULF OF AMERICA GALE WARNING...
.30 HOUR FORECAST FROM 25N TO 29N AND W OF A LINE FROM 29N94W TO
25N96W N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.36 HOUR FORECAST COLD FRONT FROM 30N90W TO 26N92W TO 21N97W. W
OF
FRONT N TO NE WINDS 20 TO 30 KT. SEAS BUILDING TO 3.0 M.
.48 HOUR FORECAST COLD FRONT FROM 28N83W TO 21N96W TO 19N95W.
FROM
21N TO 25N W OF 96W NW TO N WINDS 30 TO 40 KT. SEAS 3.0 TO 4.5 M.
ELSEWHERE NW OF FRONT N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M.
.SYNOPSIS AND FORECAST.
.ATLC FROM 22N TO 26N E OF 38W NE TO E WINDS 20 TO 25 KT. SEAS
2.5
TO 3.0 M. ELSEWHERE FROM 23N TO 26N E OF 41W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED E AND NW SWELL.
.12 HOUR FORECAST FROM 25N TO 27N E OF 40W WINDS 20 KT OR LESS.
SEAS
2.5 M. PRIMARILY IN NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.ATLC N OF 30N E OF 46W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
NW
SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST N OF 30N BETWEEN 46W AND 53W WINDS 20 KT OR
LESS.
SEAS 2.5 TO 3.0 M IN N SWELL.
.CARIBBEAN FROM 16N TO 20.5N BETWEEN 82W AND 84W E TO SE WINDS 20
TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST FROM 16N TO 20N W OF 85W E TO SE WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER GR. NATIONAL HURRICANE CENTER.
$$