HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC OCT 31.
24 HOUR FORECAST VALID 0000 UTC NOV 01.
48 HOUR FORECAST VALID 0000 UTC NOV 02.
.WARNINGS.
...HURRICANE FORCE WIND WARNING...
.COMPLEX LOW WITH MAIN LOW 34N57W 1009 MB MOVING NE 30 KT AND
SECONDARY LOW 32N60W 1009 MB BECOMING ABSORBED BY MAIN LOW. FROM
32N TO 36N BETWEEN 53W AND 49W...AND WITHIN 90 NM NW OF A FRONT
FROM MAIN LOW TO SECONDARY LOW...WINDS 25 TO 35 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 43N46W 986 MB RAPIDLY INTENSIFYING. WITHIN
60 NM EITHER SIDE OF A LINE FROM 44N44W TO 40N41W AREA OF SE
WINDS 40 TO 50 KT. SEAS 4.5 TO 7 M. ELSEWHERE FROM 35N TO 45N
BETWEEN 45W AND 38W...AND BETWEEN 60 NM AND 240 NM S
QUADRANT...WINDS 30 TO 40 KT. SEAS 3 TO 8 M...HIGHEST NEAR
41N45W. ELSEWHERE FROM 34N TO 45N BETWEEN 52W AND 40W WINDS 20 TO
30 KT. SEAS 2.5 TO 7 M...HIGHEST WITHIN 240 NM SE QUADRANT OF
LOW.
.36 HOUR FORECAST LOW 50N43W 973 MB. FROM 46N TO 47N BETWEEN 45W
AND 41W...AND FROM 50N TO 52N BETWEEN 40W AND 36W...WINDS 50 TO
65 KT. SEAS 5 TO 8.5 M.
.48 HOUR FORECAST LOW 57N44W 961 MB. FROM 52N TO 58N BETWEEN 48W
AND 44W...AND WITHIN 60 NM EITHER SIDE OF A LINE FROM 59N45W TO
60N43W...WINDS 40 TO 50 KT. SEAS 4 TO 8 M. ELSEWHERE FROM 49N TO
60N BETWEEN 50W AND 35W...AND WITHIN 60 NM OF THE E COAST OF
GREENLAND FROM 60N TO 62N...WINDS 30 TO 45 KT. SEAS 2.5 TO 8.5
M...HIGHEST NEAR 54N39W. ELSEWHERE FROM 39N TO 62N BETWEEN 52W
AND 35W WINDS 20 TO 30 KT. SEAS 2.5 TO 7 M...HIGHEST NEAR
49N42W.
...GALE WARNING...
.LOW 63N38W 995 MB MOVING NE 10 KT. FROM 59N TO 61N BETWEEN 45W
AND 40W AREA OF SW WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
ELSEWHERE N OF 55N BETWEEN 48W AND 35W WINDS 20 TO 30 KT. SEAS 3
TO 5.5 M.
.24 HOUR FORECAST LOW MOVED NE OF AREA. CONDITIONS DIMINISHED.
.SYNOPSIS AND FORECAST.
.LOW 54N49W 997 MB MOVING NE 15 KT. FROM 47N TO 55N BETWEEN 50W
AND 35W WINDS 20 TO 30 KT. SEAS 3 TO 5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.
.DENSE FOG WITH VSBY OCCASIONALLY LESS THAN 1 NM FROM 46N TO 49N
BETWEEN 59W AND 53W...AND WITHIN 60 NM OF THE E COAST OF
GREENLAND N OF 65N.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 52N BETWEEN 51W AND
43W...AND WITHIN 60 NM OF THE E COAST OF GREENLAND N OF 63N.
.48 HOUR FORECAST DENSE FOG FROM 54N TO 61N BETWEEN 49W AND
44W...AND WITHIN 60 NM OF THE E COAST OF GREENLAND N OF 61N.
.LIGHT FREEZING SPRAY N OF 63N W OF 58W.
.24 HOUR FORECAST CONDITIONS IMPROVED.
.FORECASTER CONNELLY. 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 SAT OCT 31.
24 HOUR FORECAST VALID 0000 UTC SUN NOV 01.
48 HOUR FORECAST VALID 0000 UTC MON NOV 02.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.ATLC LOW PRES N OF AREA NEAR 32N60W 1009 MB WITH COLD FRONT TO
29N63W TO 27N65W AND TO 22N70W. WITHIN 31N58W TO 31N60W TO
30N62W TO 29.5N60W TO 31N58W SW WINDS 20 TO 25 KT. SEAS TO 2.5
M. WITHIN 31N60W TO 31N67W TO 30N68W TO 29N66W TO 30N64W TO
31N60W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M. ELSEWHERE WITHIN
31N60W TO 31N70W TO 29N75W TO 29N80W TO 27N80W TO 28N71W TO
31N60W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E SWELL.
WITHIN 31N50W TO 31N52W TO 28N50W TO 27N47W TO 27N45W TO 29N49W
TO 31N50W WINDS 20 KT OR LESS. SEAS 2.5 M IN MERGING N AND SE
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N54W TO 28N60W THEN
STATIONARY FRONT TO 25N80W. WITHIN 28N61W TO 31N70W TO 31N80W TO
25N80W TO 25N70W TO 28N61W NE TO E WINDS 20 TO 25 KT. SEAS 2.5
TO 3 M. WITHIN 31N50W TO 31N55W TO 30N54W TO 31N50W WINDS 20 KT
OR LESS. SEAS TO 2.5 M IN W SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N46W TO 27N52W THEN
STATIONARY FRONT TO 25N80W. WITHIN 26N60W TO 31N54W TO 31N81W TO
25N80W TO 25N70W TO 26N60W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO
3 M.
.ATLC WITHIN 31N35W TO 31N55W TO 27N44W TO 25N40W TO 25N35W TO
31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN N SWELL.
.24 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 28N44W TO 23N43W TO
21N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N
SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS 2.5 M IN N SWELL.
.CARIBBEAN WITHIN 12N73W TO 13N74W TO 12N75W TO 11N75W TO 12N74W
TO 12N73W NE TO E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST WITHIN 12N77W TO 12N78W TO 12N79W TO 11N79W TO
11N78W TO 11N77W TO 12N77W WINDS 20 KT OR LESS. SEAS 2.5 M IN NE
TO E SWELL.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.GULF OF AMERICA 30 HOUR FORECAST WITHIN 29N84W TO 29N85W TO
29N86W TO 28N85W TO 27N84W TO 28N84W TO 29N84W E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.48 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 AGUIRRE. NATIONAL HURRICANE CENTER.
$$