HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT OCT 31 2026
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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC OCT 31.
24 HOUR FORECAST VALID 1200 UTC NOV 01.
48 HOUR FORECAST VALID 1200 UTC NOV 02.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MAIN LOW 38N52W 1000 MB MOVING NE 30 KT AND
RAPIDLY INTENSIFYING. WITHIN 300 NM E AND SE OF A LINE FROM
41N49W TO 33N53W WINDS 30 TO 40 KT. SEAS 3.5 TO 7 M. ELSEWHERE
WITHIN 780 NM NE...420 NM E...600 NM SE...SW AND 120 NM NW
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M IN MIXED SWELL.
.12 HOUR FORECAST LOW 44N46W 989 MB. BETWEEN 60 NM AND 180 NM SW
SEMICIRCLE AND WITHIN 240 NM NE AND E OF A FRONT FROM THE LOW TO
41N43W TO 36N45W WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M...HIGHEST
NEAR 41N45W
.24 HOUR FORECAST LOW 52N44W 974 MB. FROM 48N TO 53N BETWEEN 41W
AND 37W WINDS 50 TO 65 KT. SEAS 6.5 TO 9 M. ELSEWHERE E OF A LINE
FROM 54N42W TO 45N42W WINDS 40 TO 50 KT. SEAS 5.5 TO 7.5 M. ALSO
WITHIN 540 NM NE...1020 NM SE...540 NM SW AND 420 NM NW QUADRANTS
WINDS 25 TO 40 KT. SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW 63N49W 977 MB. WITHIN 180 NM E AND SE OF A
LINE FROM 62N41W TO 59N45W WINDS 35 TO 50 KT. SEAS 6.5 TO 9
M...HIGHEST NEAR 58N41W. ELSEWHERE WITHIN 360 NW AND 180 NM SE
QUADRANTS...FROM 50N TO 55N BETWEEN 40W AND 60W...FROM 55N TO 58N
E OF 50W AND N OF 62N E OF GREENLAND WINDS 25 TO 35 KT. SEAS 3 TO
7.5 M...HIGHEST NEAR 62N E OF GREENLAND.
.SYNOPSIS AND FORECAST.
.FROM 36N TO 44N W OF 60W AREA OF NW TO N WINDS 20 TO 30 KT. SEAS
TO 3.5 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.LOW 64N37W 1005 MB MOVING NE 10 KT. N OF 60N E OF GREENLAND.
WINDS LESS THAN 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW MOVED NE OF AREA. CONDITIONS DIMINISHED.
.LOW 56N45W 1002 MB MOVING NE 15 KT. WITHIN 360 NM E...BETWEEN
120 NM AND 540 NM SE AND 180 NM AND 420 NM S QUADRANTS WINDS 20
TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST SE QUADRANT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.
.DENSE FOG WITH VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM NW
OF A LINE FROM 45N56W TO 4N47W...FROM 55N TO 59N BETWEEN 42W AND
56W AND N OF 64N E OF GREENLAND.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM W AND NW OF A LINE FROM
47N43W TO 60N39W...WITHIN 60 NM S OF A LINE FROM 60N39W TO
60N35W...FROM 61N TO 65N W OF 61W AND WITHIN 90 NM E OF GREENLAND
N OF 60N.
.48 HOUR FORECAST DENSE FOG W AND NW OF A LINE FROM 55N52W TO
63N64W...WITHIN 90 NM W OF GREENLAND N OF 60N AND FROM 62N TO 64N
W OF 39W TO E GREENLAND.
.LIGHT FREEZING SPRAY W OF A LINE FROM 56N58W TO 61N61W TO
LABRADOR AND WITHIN 60 NM W OF GREENLAND N OF 64N.
.24 HOUR FORECAST LIGHT FREEZING SPRAY WITHIN 60 NM W OF
GREENLAND N OF 60N.
.48 HOUR FORECAST LIGHT FREEZING SPRAY FROM WITHIN 60 NM E OF
LABRADOR FROM 56N TO 61N.
.FORECASTER FUTTERMAN. 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 SAT OCT 31.
24 HOUR FORECAST VALID 1200 UTC SUN NOV 1.
48 HOUR FORECAST VALID 1200 UTC MON NOV 2.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC WITHIN 31N35W TO 30N55W TO 31N66W TO 28N46W TO 24N43W TO
23N35W TO 31N35W E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 31N46W TO 31N56W TO 30N57W TO 29N53W TO
30N48W TO 31N46W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N
SWELL.
.ATLC 12 HOUR FORECAST WITHIN 31N77W TO 31N81W TO 25N79W TO
27N77W TO 25N76W TO 26N72W TO 31N77W...INCLUDING ATLANTIC
EXPOSURES...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 27N64W TO 27N73W TO 31N77W TO 31N81W TO
26N80W TO 24N70W TO 27N64W...INCLUDING ATLANTIC EXPOSURES...NE
TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.48 HOUR FORECAST WITHIN 29N62W TO 31N81W TO 25N75W TO 25N64W TO
29N62W...INCLUDING ATLANTIC EXPOSURES...E WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.CARIBBEAN WITHIN 12N74W TO 13N76W TO 12N78W TO 11N78W TO 10N76W
TO 11N75W TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA 24 HOUR FORECAST WITHIN 29N84W TO 30N86W TO
30N87W TO 29N87W TO 28N86W TO 28N84W TO 29N84W E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 30N84W TO 30N86W TO 30N88W TO 29N88W TO
29N86W TO 29N84W TO 30N84W E WINDS 20 TO 25 KT. SEAS LESS THAN
2.5 M.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.FORECASTER KONARIK/FIGURSKEY. NATIONAL HURRICANE CENTER.
$$