HSFAT1
HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT OCT 03 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 03.
24 HOUR FORECAST VALID 1200 UTC OCT 04.
48 HOUR FORECAST VALID 1200 UTC OCT 05.
.WARNINGS.
...GALE WARNING...
.LOW E OF AREA 63N31W 980 MB MOVING NE 30 KT. N OF 57N E OF 37W
WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ALSO WITHIN 240 NM NW AND
420 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
ELSEWHERE WITHIN 660 NM SW QUADRANT WINDS LESS THAN 25 KT. SEAS
2.5 TO 3.5 M IN MIXED SWELL.
.LOW MOVED WELL NE OF AREA. CONDITIONS DESCRIBED WITH LOWS
61N40W AND 58N31W BELOW.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW 62N54W 997 MB. WITHIN 240 NM SW
QUADRANT AREA OF NW WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
ELSEWHERE WITHIN 600 NM SE...420 NM SW...AND 360 NM W QUADRANTS
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 61N37W
BELOW.
...GALE WARNING...
.24 HOUR FORECAST NEW LOW 61N40W 992 MB. WITHIN 180 NM S
QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN
480 NM S AND 540 NM SW QUADRANTS WINDS TO 25 KT. SEAS 2.5 TO 3 M.
.48 HOUR FORECAST LOW MOVED E OF AREA WITH NEW LOW 61N37W 1001
MB. WITHIN 300 NM S SEMICIRCLE WINDS 30 TO 45 KT. SEAS 3 TO 5.5
M. ELSEWHERE WITHIN 600 NM S...420 NM SW...AND 480 NM W
QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.SYNOPSIS AND FORECAST.
.COMPLEX LOW WITH FIRST CENTER 66N58W 986 MB MOVING N 05 KT AND
SECOND CENTER 64N57W 987 MB MOVING NE 15 KT. WITHIN 180 NM
NE...240 NM SE...AND 360 NM SW QUADRANTS OF SECOND CENTER WINDS
20 TO 30 KT. SEAS 2.5 TO 3.5 M...HIGHEST WITHIN 180 NM S
SEMICIRCLE OF SECOND CENTER.
.24 HOUR FORECAST SECOND LOW ABSORBED BY FIRST LOW N OF AREA
68N57W 993 MB. WITHIN 120 NM S SEMICIRCLE WINDS TO 25 KT. SEAS
TO 2.5 M.
.48 HOUR FORECAST LOW MOVED WELL N OF AREA. CONDITIONS
DIMINISHED.
.LOW 50N51W 1004 MB MOVING NE 35 KT. WITHIN 300 NM NW OF A LINE
FROM 50N35W TO 44N55W AREA OF SW WINDS 20 TO 30 KT. SEAS 2.5 TO
4 M...HIGHEST E OF 40W.
.24 HOUR FORECAST LOW MOVED E OF AREA 58N31W 994 MB. EXCEPT AS
DESCRIBED WITH LOW 61N40W IN WARNINGS SECTION ABOVE...WITHIN 420
NM SW AND 240 NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M.
.48 HOUR FORECAST LOW MOVED WELL E OF AREA. CONDITIONS DESCRIBED
WITH LOW 61N37W IN WARNINGS SECTION ABOVE.
.COMPLEX LOW WITH MAIN CENTER 38N71W 1018 MB MOVING NE 15 KT.
WITHIN 180 NM NW SEMICIRCLE WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED WITH NEW LOW 37N73W 1016 MB.
WITHIN 240 NM N AND 900 NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS
2.5 TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 43N64W 1010 MB.
WITHIN 240 NM NE SEMICIRCLE AND BETWEEN 120 NM AND 300 NM SW
QUADRANT WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE WITHIN
420 NM N...NE...AND SE...AND WITHIN 660 NM SW QUADRANTS WINDS TO
25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST...EXCEPT AS DESCRIBED WITH LOW 43N64W
ABOVE...WITHIN AN AREA BOUNDED BY A LINE FROM 46N54W TO 46N35W
TO 44N35W TO 40N50W TO 46N54W AREA OF NE TO E WINDS TO 25 KT.
SEAS 2.5 TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 52N
BETWEEN 40W AND 55W...AND N OF 61N W OF 57W.
.24 HOUR FORECAST DENSE FOG NW OF A LINE FROM 60N58W TO 65N53W.
.48 HOUR FORECAST DENSE FOG FROM 41N TO 45N BETWEEN 57W AND
67W...N OF 64N BETWEEN 36W AND 39W...AND N OF A LINE FROM 62N50W
TO 65N64W.
.FORECASTER FIGURSKEY. OCEAN PREDICTION CENTER.
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 3.
24 HOUR FORECAST VALID 1200 UTC SUN OCT 4.
48 HOUR FORECAST VALID 1200 UTC MON OCT 5.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.CARIBBEAN WITHIN 14N70W TO 15N71W TO 15N73W TO 14N74W TO 13N74W
TO 13N71W TO 14N70W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
TO SE SWELL.
.18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.GULF OF AMERICA WITHIN 25N88W TO 23N89W TO 22N88W TO 22N87W TO
23N87W TO 25N88W SE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST CONDITIONS IMPROVE. 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 CHRISTENSEN. NATIONAL HURRICANE CENTER.