473 

FZNT01 KWBC 162202

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

2230 UTC FRI OCT 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC OCT 16.

24 HOUR FORECAST VALID 1800 UTC OCT 17.

48 HOUR FORECAST VALID 1800 UTC OCT 18.



.WARNINGS.



...STORM WARNING...

.COMPLEX LOW WITH MAIN LOW 53N46W 973 MB MOVING NE 25 KT AND

SECOND LOW 57N48W 973 MB MOVING NE 20 KT. WITHIN 180 NM N AND NE

OF A FRONT FROM 54N41W TO 49N35W AND WITHIN 180 NM SW AND W OF A

LINE FROM 51N44W TO 54N48W TO 58N50W WINDS 40 TO 55 KT. SEAS 5.5

TO 9 M...HIGHEST NEAR 51N47W. ELSEWHERE WITHIN 420 NM NE AND 300

NM NW QUADRANTS OF SECOND LOW AND WITHIN 420 NM NE...1020 NM

SE...660 NM SW AND 960 NM NW QUADRANTS OF MAIN LOW WINDS 25 TO 40

KT. SEAS 3.5 TO 7 M. ALSO FROM 60N TO 64N E AND W OF GREENLAND

WINDS TO 25 KT. SEAS 2.5 TO 5 M...HIGHEST N OF 60N E OF

GREENLAND.

.24 HOUR FORECAST COMBINED LOW 63N40W 968 MB. BETWEEN 90 NM AND

240 NM S SEMICIRCLE WINDS 40 TO 55 KT. SEAS 6.5 TO 10 M...HIGHEST

NEAR 57N37W. ELSEWHERE N OF 65N E OF GREENLAND AND WITHIN 480 NM

SE...420 NM S AND 360 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 3.5

TO 7 M. 

.48 HOUR FORECAST LOW NE OF THE AREA 66N29W 970 MB. FROM 58N TO

61N E OF 43W WINDS 40 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR 35W.

ELSEWHERE FROM 53N TO 60N E OF 50W...FROM 60N TO 65N W OF

GREENLAND AND FROM 61N TO 63N E OF GREENLAND WINDS 25 TO 40 KT.

SEAS 3.5 TO 6.5 M. 



...STORM WARNING...

.INLAND LOW 45N73W 996 MB MOVING NE 35 KT AND INTENSIFYING. FROM

36N TO 45N BETWEEN 65W AND 71W...INCLUDING THE BAY OF FUNDY WINDS

20 TO 30 KT. SEAS TO 2.5 M.

.06 HOUR FORECAST INLAND LOW 46N67W 996 MB. WITHIN 420 NM SE

QUADRANT WINDS 25 TO 35 KT. SEAS TO 3.5 M. 

.24 HOUR FORECAST LOW 55N55W 982 MB. WITHIN 420 NM E...540 NM SE

AND 480 NM S QUADRANTS WINDS 30 TO 45 KT. SEAS 3.5 TO 5.5

M...HIGHEST E QUADRANT. ELSEWHERE WITHIN 1140 NM SW

QUADRANT...INCLUDING THE GULF OF SAINT LAWRENCE AND W AND NW OF A

LINE FROM 31N79W TO 42N62W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

.30 HOUR FORECAST LOW 55N48W 982 MB AND SECOND NEW LOW TO FORM

NEAR 34N73W 1010 MB. WITHIN 420 NM SE AND BETWEEN 90 NM AND 540

NM S QUADRANTS OF MAIN LOW AND WITHIN 300 NM NW AND N QUADRANTS

OF SECOND LOW. WINDS 35 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR

54N45W.

.48 HOUR FORECAST LOW FIRST LOW DISSIPATED WITH SECOND LOW 33N72W

1012 MB. WITHIN 180 NM NW AND N OF A LINE FROM 34N75W TO 37N62W

WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M...HIGHEST NEAR 34N76W.

ELSEWHERE WITHIN 1020 NM NE...480 NM SW AND 420 NM NW QUADRANTS

WINDS 25 TO 35 KT. SEAS 3.5 TO 6 M. ALSO N OF 46N W OF

58W...MAINLY IN THE GULF OF SAINT LAWRENCE WINDS20 TO 30 KT.

SEAS TO 3.5 M. 



...GALE WARNING...

.18 HOUR FORECAST N OF 64N W OF GREENLAND AREA OF N WINDS 25 TO

35 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 65N55W.  

.24 HOUR FORECAST N OF 60N W OF GREENLAND AREA OF NW TO N WINDS

25 TO 40 KT. SEAS 3 TO 5.5 M...HIGHEST NEAR 65N55W. 

.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE IN FIRST STORM

WARNING WITH LOW NE OF THE AREA 66N29W.



.SYNOPSIS AND FORECAST.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM W OF A

LINE FROM 53N46W TO 60N49W...WITHIN 60 NM W OF GREENLAND FROM 60N

TO 63N...N OF 63N W OF GREENLAND AND WITHIN 60 NM E OF GREENLAND

FROM 60N TO 65N . 

.24 HOUR FORECAST DENSE FOG WITHIN 90 NM W AND NW OF A LINE FROM

44N56W TO 52N48W...FROM 52N TO 56N W OF 43W TO THE COAST OF

LABRADOR...W OF A LINE FROM 56N55W TO 60N60W TO LABRADOR...FROM

60N TO 62N W OF 59W AND N OF 65N E OF GREENLAND.

.48 HOUR FORECAST DENSE FOG WITHIN 90 NM NW AND N OF A LINE FROM

55N58W TO 56N43W AND N OF 64N E OF GREENLAND.



.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 65N W OF 59W. 

.48 HOUR FORECAST LIGHT FREEZING SPRAY NW AND N OF A LINE FROM

60N64W TO 65N55W AND N OF 65N W OF GREENLAND.



.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 1800 UTC FRI OCT 16.

24 HOUR FORECAST VALID 1800 UTC SAT OCT 17.

48 HOUR FORECAST VALID 1800 UTC SUN OCT 18.



.WARNINGS.



...GULF OF AMERICA GALE WARNING... 

.COLD FRONT FROM 30N93W TO 26N97W. W OF FRONT N WINDS 20 TO 30

KT. SEAS LESS THAN 2.5 M.

.06 HOUR FORECAST COLD FRONT FROM 30N89W TO 26N96W TO 21N97W. W

OF FRONT N WINDS 20 TO 30 KT...WITH FREQUENT GUSTS TO GALE FORCE.

SEAS BUILDING TO 2.5 TO 3.0 M.

.12 HOUR FORECAST COLD FRONT FROM 30N84W TO 24N94W TO 19N96W.

FROM 21W TO 26W W OF 96W N WINDS 30 TO 35 KT. SEAS 3.5 TO 4.0 M. 

ELSEWHERE W OF FRONT N TO NE WINDS 20 TO 30 KT...WITH FREQUENT

GUSTS TO GALE FORCE. SEAS 2.5 TO 3.5 M. 

.18 HOUR FORECAST COLD FRONT FROM 28N83W TO 20N95W TO 18.5N94W. S

OF 25N W OF 95W NW TO N WINDS 30 TO 45 KT. SEAS 4.0 TO 6.0 M.

ELSEWHERE NW OF FRONT N TO NE WINDS 20 TO 30 KT...WITH FREQUENT 

GUSTS TO

GALE FORCE. SEAS 2.5 TO 4.0 M.

.24 HOUR FORECAST COLD FRONT FROM 27N87W TO 20N95W TO 18.5N94W. 

LITTLE CHANGE IN WINDS AND SEAS.

.36 HOUR FORECAST COLD FRONT FROM 25.5N81W TO 22N90W TO 18.5N93W.

S OF 22N W OF 94W NW TO N WINDS 30 TO 40 KT. SEAS 4.0 TO 6.0 M. 

ELSEWHERE NW OF FRONT TO A LINE FROM 29N90W TO 24N97W N TO NE

WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M...EXCEPT 4.0 TO 5.0 M S OF 

23N W

OF 92W.

.48 HOUR FORECAST COLD FRONT FROM 25N80W TO 22N89W TO 18.5N93W. S

OF 20N W OF FRONT NW TO N WINDS 30 TO 35 KT. SEAS 4.0 TO 5.0 M. 

ELSEWHERE NW OF FRONT TO A LINE FROM 29N90W TO 23N97W N TO NE

WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M...EXCEPT 3.0 TO 4.0 M S OF 

22N W

OF 92W.



.SYNOPSIS AND FORECAST.



.ATLC FROM 22N TO 25N E OF 36W SE WINDS 20 TO 25 KT. SEAS 2.5 TO

3.0 M. ELSEWHERE N OF 21N E OF 40W WINDS 20 KT OR LESS. SEAS 2.5 

TO

3.0 M PRIMARILY IN N SWELL.  

.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.ATLC 18 HOUR FORECAST N OF 30N BETWEEN 46W AND 52W WINDS 20 KT

OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.24 HOUR FORECAST N OF 29N BETWEEN 45W AND 52W WINDS 20 KT OR

LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.36 HOUR FORECAST N OF 29N BETWEEN 40W AND 45W WINDS 20 KT OR

LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.48 HOUR FORECAST N OF 26N BETWEEN 38W AND 45W WINDS 20 KT OR

LESS. SEAS 2.5 TO 3.0 M IN N SWELL.



.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 77W...INCLUDING THE

GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M

OFFSHORE COLOMBIA.

.18 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.



$$OPCN-873878




476 

FZNT01 KWBC 162202

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

2230 UTC FRI OCT 16 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 1800 UTC OCT 16.

24 HOUR FORECAST VALID 1800 UTC OCT 17.

48 HOUR FORECAST VALID 1800 UTC OCT 18.



.WARNINGS.



...STORM WARNING...

.COMPLEX LOW WITH MAIN LOW 53N46W 973 MB MOVING NE 25 KT AND

SECOND LOW 57N48W 973 MB MOVING NE 20 KT. WITHIN 180 NM N AND NE

OF A FRONT FROM 54N41W TO 49N35W AND WITHIN 180 NM SW AND W OF A

LINE FROM 51N44W TO 54N48W TO 58N50W WINDS 40 TO 55 KT. SEAS 5.5

TO 9 M...HIGHEST NEAR 51N47W. ELSEWHERE WITHIN 420 NM NE AND 300

NM NW QUADRANTS OF SECOND LOW AND WITHIN 420 NM NE...1020 NM

SE...660 NM SW AND 960 NM NW QUADRANTS OF MAIN LOW WINDS 25 TO 40

KT. SEAS 3.5 TO 7 M. ALSO FROM 60N TO 64N E AND W OF GREENLAND

WINDS TO 25 KT. SEAS 2.5 TO 5 M...HIGHEST N OF 60N E OF

GREENLAND.

.24 HOUR FORECAST COMBINED LOW 63N40W 968 MB. BETWEEN 90 NM AND

240 NM S SEMICIRCLE WINDS 40 TO 55 KT. SEAS 6.5 TO 10 M...HIGHEST

NEAR 57N37W. ELSEWHERE N OF 65N E OF GREENLAND AND WITHIN 480 NM

SE...420 NM S AND 360 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 3.5

TO 7 M. 

.48 HOUR FORECAST LOW NE OF THE AREA 66N29W 970 MB. FROM 58N TO

61N E OF 43W WINDS 40 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR 35W.

ELSEWHERE FROM 53N TO 60N E OF 50W...FROM 60N TO 65N W OF

GREENLAND AND FROM 61N TO 63N E OF GREENLAND WINDS 25 TO 40 KT.

SEAS 3.5 TO 6.5 M. 



...STORM WARNING...

.INLAND LOW 45N73W 996 MB MOVING NE 35 KT AND INTENSIFYING. FROM

36N TO 45N BETWEEN 65W AND 71W...INCLUDING THE BAY OF FUNDY WINDS

20 TO 30 KT. SEAS TO 2.5 M.

.06 HOUR FORECAST INLAND LOW 46N67W 996 MB. WITHIN 420 NM SE

QUADRANT WINDS 25 TO 35 KT. SEAS TO 3.5 M. 

.24 HOUR FORECAST LOW 55N55W 982 MB. WITHIN 420 NM E...540 NM SE

AND 480 NM S QUADRANTS WINDS 30 TO 45 KT. SEAS 3.5 TO 5.5

M...HIGHEST E QUADRANT. ELSEWHERE WITHIN 1140 NM SW

QUADRANT...INCLUDING THE GULF OF SAINT LAWRENCE AND W AND NW OF A

LINE FROM 31N79W TO 42N62W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

.30 HOUR FORECAST LOW 55N48W 982 MB AND SECOND NEW LOW TO FORM

NEAR 34N73W 1010 MB. WITHIN 420 NM SE AND BETWEEN 90 NM AND 540

NM S QUADRANTS OF MAIN LOW AND WITHIN 300 NM NW AND N QUADRANTS

OF SECOND LOW. WINDS 35 TO 50 KT. SEAS 4 TO 8 M...HIGHEST NEAR

54N45W.

.48 HOUR FORECAST LOW FIRST LOW DISSIPATED WITH SECOND LOW 33N72W

1012 MB. WITHIN 180 NM NW AND N OF A LINE FROM 34N75W TO 37N62W

WINDS 35 TO 50 KT. SEAS 4.5 TO 8 M...HIGHEST NEAR 34N76W.

ELSEWHERE WITHIN 1020 NM NE...480 NM SW AND 420 NM NW QUADRANTS

WINDS 25 TO 35 KT. SEAS 3.5 TO 6 M. ALSO N OF 46N W OF

58W...MAINLY IN THE GULF OF SAINT LAWRENCE WINDS 20 TO 30 KT.

SEAS TO 3.5 M. 



...GALE WARNING...

.18 HOUR FORECAST N OF 64N W OF GREENLAND AREA OF N WINDS 25 TO

35 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 65N55W.  

.24 HOUR FORECAST N OF 60N W OF GREENLAND AREA OF NW TO N WINDS

25 TO 40 KT. SEAS 3 TO 5.5 M...HIGHEST NEAR 65N55W. 

.48 HOUR FORECAST CONDITIONS DESCRIBED ABOVE IN FIRST STORM

WARNING WITH LOW NE OF THE AREA 66N29W.



.SYNOPSIS AND FORECAST.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM W OF A

LINE FROM 53N46W TO 60N49W...WITHIN 60 NM W OF GREENLAND FROM 60N

TO 63N...N OF 63N W OF GREENLAND AND WITHIN 60 NM E OF GREENLAND

FROM 60N TO 65N . 

.24 HOUR FORECAST DENSE FOG WITHIN 90 NM W AND NW OF A LINE FROM

44N56W TO 52N48W...FROM 52N TO 56N W OF 43W TO THE COAST OF

LABRADOR...W OF A LINE FROM 56N55W TO 60N60W TO LABRADOR...FROM

60N TO 62N W OF 59W AND N OF 65N E OF GREENLAND.

.48 HOUR FORECAST DENSE FOG WITHIN 90 NM NW AND N OF A LINE FROM

55N58W TO 56N43W AND N OF 64N E OF GREENLAND.



.24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 65N W OF 59W. 

.48 HOUR FORECAST LIGHT FREEZING SPRAY NW AND N OF A LINE FROM

60N64W TO 65N55W AND N OF 65N W OF GREENLAND.



.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 1800 UTC FRI OCT 16.

24 HOUR FORECAST VALID 1800 UTC SAT OCT 17.

48 HOUR FORECAST VALID 1800 UTC SUN OCT 18.



.WARNINGS.



...GULF OF AMERICA GALE WARNING... 

.COLD FRONT FROM 30N93W TO 26N97W. W OF FRONT N WINDS 20 TO 30

KT. SEAS LESS THAN 2.5 M.

.06 HOUR FORECAST COLD FRONT FROM 30N89W TO 26N96W TO 21N97W. W

OF FRONT N WINDS 20 TO 30 KT...WITH FREQUENT GUSTS TO GALE FORCE.

SEAS BUILDING TO 2.5 TO 3.0 M.

.12 HOUR FORECAST COLD FRONT FROM 30N84W TO 24N94W TO 19N96W.

FROM 21W TO 26W W OF 96W N WINDS 30 TO 35 KT. SEAS 3.5 TO 4.0 M. 

ELSEWHERE W OF FRONT N TO NE WINDS 20 TO 30 KT...WITH FREQUENT

GUSTS TO GALE FORCE. SEAS 2.5 TO 3.5 M. 

.18 HOUR FORECAST COLD FRONT FROM 28N83W TO 20N95W TO 18.5N94W. S

OF 25N W OF 95W NW TO N WINDS 30 TO 45 KT. SEAS 4.0 TO 6.0 M.

ELSEWHERE NW OF FRONT N TO NE WINDS 20 TO 30 KT...WITH FREQUENT 

GUSTS TO

GALE FORCE. SEAS 2.5 TO 4.0 M.

.24 HOUR FORECAST COLD FRONT FROM 27N87W TO 20N95W TO 18.5N94W. 

LITTLE CHANGE IN WINDS AND SEAS.

.36 HOUR FORECAST COLD FRONT FROM 25.5N81W TO 22N90W TO 18.5N93W.

S OF 22N W OF 94W NW TO N WINDS 30 TO 40 KT. SEAS 4.0 TO 6.0 M. 

ELSEWHERE NW OF FRONT TO A LINE FROM 29N90W TO 24N97W N TO NE

WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M...EXCEPT 4.0 TO 5.0 M S OF 

23N W

OF 92W.

.48 HOUR FORECAST COLD FRONT FROM 25N80W TO 22N89W TO 18.5N93W. S

OF 20N W OF FRONT NW TO N WINDS 30 TO 35 KT. SEAS 4.0 TO 5.0 M. 

ELSEWHERE NW OF FRONT TO A LINE FROM 29N90W TO 23N97W N TO NE

WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M...EXCEPT 3.0 TO 4.0 M S OF 

22N W

OF 92W.



.SYNOPSIS AND FORECAST.



.ATLC FROM 22N TO 25N E OF 36W SE WINDS 20 TO 25 KT. SEAS 2.5 TO

3.0 M. ELSEWHERE N OF 21N E OF 40W WINDS 20 KT OR LESS. SEAS 2.5 

TO

3.0 M PRIMARILY IN N SWELL.  

.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.ATLC 18 HOUR FORECAST N OF 30N BETWEEN 46W AND 52W WINDS 20 KT

OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.24 HOUR FORECAST N OF 29N BETWEEN 45W AND 52W WINDS 20 KT OR

LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.36 HOUR FORECAST N OF 29N BETWEEN 40W AND 45W WINDS 20 KT OR

LESS. SEAS 2.5 TO 3.0 M IN N SWELL.

.48 HOUR FORECAST N OF 26N BETWEEN 38W AND 45W WINDS 20 KT OR

LESS. SEAS 2.5 TO 3.0 M IN N SWELL.



.CARIBBEAN FROM 11N TO 15N BETWEEN 70W AND 77W...INCLUDING THE

GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M

OFFSHORE COLOMBIA.

.18 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.



$$






699 

FZPN40 PHFO 162207

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

2300 UTC FRI OCT 16 2026



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.



THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE

HIGHER THAN 10-MINUTE AVERAGE WINDS.



SECURITE



NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W



SYNOPSIS VALID 1800 UTC OCT 16 2026.

24 HOUR FORECAST VALID 1800 UTC OCT 17 2026.

48 HOUR FORECAST VALID 1800 UTC OCT 18 2026.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.LOW NEAR 05N173W 1007 MB MOVING W SLOWLY. TROUGH FROM 10N163W TO

08N170W TO LOW TO 02N180W MOVING W SLOWLY. WINDS 20 TO 30 KT FROM

11N TO 09N BETWEEN 177W AND 169W. SCATTERED MODERATE TO STRONG 

TSTMS FROM 12N TO 03N W OF 166W. 

.24 HOUR FORECAST LOW NEAR 04N179W. TROUGH FROM 07N167W TO 

08N174W TO LOW TO 04N180W. WINDS EASED TO 20 KT OR LESS.

.48 HOUR FORECAST LOW MOVED JUST W OF AREA. TROUGH FROM 07N180W 

TO 05N171W.



.FRONT 30N149W 28N151W THENCE TROUGH 24N158W. FRONT NEARLY 

STATIONARY AND TROUGH MOVING W SLOWLY. WINDS 20 TO 25 KT WITHIN 

150 NM OF FRONT AND TROUGH.

.24 HOUR FORECAST FRONT WEAKENED TO TROUGH. TROUGH 30N152W 

26N159W. WINDS EASED TO 20 KT OR LESS.

.48 HOUR FORECAST TROUGH 30N157W 26N166W.



.TROUGH 30N175W 27N176W 22N176W MOVING W 10 KT.

.24 HOUR FORECAST TROUGH MOVED W OF AREA.



.TROUGH 21N141W 15N141W MOVING W 10 KT. 

.24 HOUR FORECAST TROUGH 21N148W 17N145W 14N144W.

.48 HOUR FORECAST TROUGH 19N150W 16N149W 12N147W.



.TROUGH 09N145W 06N148W 03N149W MOVING W SLOWLY. ISOLATED 

MODERATE TSTMS WITHIN 240 NM W OF TROUGH. 

.24 HOUR FORECAST TROUGH 07N151W 03N150W.

.48 HOUR FORECAST TROUGH DISSIPATED.



.WINDS 20 TO 25 KT FROM 24N TO 16N BETWEEN 164W AND 153W.

.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 24N TO 11N BETWEEN 177W 

AND 153W.

.48 HOUR FORECAST WINDS 20 TO 25 KT IN AREA BOUNDED BY 27N155W 

20N175W 15N180W 11N173W 19N147W 27N155W.



.SEAS 2.5 TO 3 M N OF LINE 30N145W 24N158W 27N172W 30N157W...AND 

IN AREA BOUNDED BY 21N151W 17N154W 15N171W 10N171W 16N145W 

21N151W.

.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N161W 23N167W 

23N176W 12N174W 15N150W 20N140W.

.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N160W 23N180W 

14N180W 13N155W 20N140W.



.WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER OVER REMAINDER OF 

FORECAST AREA.



.ITCZ 05N151W 08N156W. ISOLATED MODERATE TSTMS WITHIN 210 NM OF 

ITCZ.



.ISOLATED MODERATE TSTMS S OF 03N BETWEEN 154W AND 150W.



$$



.FORECASTER TROTTER. HONOLULU HI.