North Pacific High Seas Forecast

FZPN01 KWBC 192134
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
2230 UTC TUE MAY 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE). 

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM). 

SECURITE 

PACIFIC S OF 67N AND N OF 30N E OF A LINE FROM THE BERING STRAIT 
TO 53N172E TO 50N180W TO 30N180W 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 1800 UTC MAY 19. 
24 HOUR FORECAST VALID 1800 UTC MAY 20. 
48 HOUR FORECAST VALID 1800 UTC MAY 21. 

.WARNINGS. 

...STORM WARNING... 
.06 HOUR FORECAST LOW W OF AREA 49N173E 980 MB AND INTENSIFYING. 
WITHIN 420 NM SE QUADRANT AREA OF SE TO S WINDS 25 TO 40 KT. 
SEAS 3 TO 5 M. 
.18 HOUR FORECAST LOW 50N179E 973 MB. WITHIN 180 NM S SEMICIRCLE 
AREA OF SW TO W WINDS 40 TO 50 KT. SEAS 5 TO 7.5 M. 
.24 HOUR FORECAST LOW 51N178W 975 MB. WITHIN 240 NM S SEMICIRCLE 
AREA OF SW TO W WINDS 40 TO 50 KT. SEAS 5 TO 8.5 M. ALSO WITHIN 
420 NM NE AND SW...AND 540 NM SE QUADRANTS WINDS 25 TO 40 KT. 
SEAS 3 TO 6 M. ELSEWHERE WITHIN 420 NM NW...540 NM NE...780 NM 
SE...AND 840 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 
M...HIGHEST SE AND S QUADRANTS.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N165W 988 MB. 
WITHIN 360 NM SE SEMICIRCLE AREA OF SW WINDS 25 TO 40 KT. SEAS 5 
TO 7.5 M. ALSO WITHIN 600 NM NE...720 NM SE...AND 660 NM SW 
QUADRANTS WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M...HIGHEST SE AND SW 
QUADRANTS. ELSEWHERE WITHIN 420 NM NW AND 1200 NM SW QUADRANTS 
WINDS LESS THAN 25 KT. SEAS 2.5 TO 3.5 M.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 46N159W 1007 MB MOVING NE 35 KT. 
WITHIN 600 NM NE...480 NM SE...AND 840 NM SW QUADRANTS WINDS 20 
TO 30 KT. SEAS 2.5 TO 3.5 M. 
.12 HOUR FORECAST LOW 54N152W 1006 MB. NE OF A LINE FROM 60N146W 
TO 59N142W AREA OF SE WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 58N147W 1005 MB. NE OF A LINE FROM 59N146W 
TO 56N137W AREA OF SE WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M. 
ELSEWHERE WITHIN 180 NM NW...540 NM SE...AND 960 NM S QUADRANTS 
WINDS 20 TO 30 KT. SEAS TO 4 M...HIGHEST SE AND S QUADRANTS.
.30 HOUR FORECAST LOW 59N145W 1004 MB. WITHIN 90 NM NE OF A LINE 
FROM 59N145W TO 59N141W TO 56N136W AREA OF SE WINDS 35 TO 45 KT. 
SEAS 3 TO 5 M.
.48 HOUR FORECAST LOW DISSIPATED. EXCEPT AS DESCRIBED WITH LOW 
57N165W ABOVE...N OF 55N BETWEEN 138W AND 146W WINDS LESS THAN 
25 KT. SEAS TO 2.5 M IN SW SWELL.

...GALE WARNING...
.S OF 43N BETWEEN 124W AND 134W AREA OF N TO NE WINDS 20 TO 30 
KT. SEAS TO 4 M.
.24 HOUR FORECAST FROM 38N TO 43N BETWEEN 124W AND 127W AREA OF 
NW TO N WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE S OF 44N 
BETWEEN 123W AND 130W AREA OF N WINDS 20 TO 30 KT. SEAS 2.5 TO 
3.5 M.
.48 HOUR FORECAST FROM 38N TO 44N BETWEEN 124W AND 129W AREA OF 
N WINDS 20 TO 30 KT. SEAS TO 4 M. ELSEWHERE FROM 32N TO 45N 
BETWEEN 123W AND 132W AREA OF NW TO N WINDS 20 TO 30 KT. SEAS 
2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST. 

.LOW 56N174W 991 MB MOVING N 05 KT. BETWEEN 180 NM AND 480 NM SE 
AND BETWEEN 120 NM AND 660 NM SW QUADRANTS WINDS 20 TO 30 KT. 
SEAS TO 4 M.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 51N178W IN 
WARNINGS SECTION ABOVE.

.FROM 57N TO 60N BETWEEN 141W AND 150W AREA OF SE WINDS 20 TO 30 
KT. SEAS TO 2.5 M.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 58N147W IN 
WARNINGS SECTION ABOVE.

.WITHIN 60 NM OF 64N172W AREA OF NE WINDS TO 25 KT. SEAS LESS 
THAN 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVED. 

.WITHIN 90 NM OF 48N128W AREA OF NW WINDS LESS THAN 25 KT. SEAS 
TO 2.5 M IN W TO NW SWELL.
.24 HOUR FORECAST FROM 44N TO 51N BETWEEN 126W AND 129W AREA OF 
NW WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 45N TO 50N BETWEEN 125W AND 129W AREA OF 
NW WINDS TO 25 KT. SEAS TO 2.5 M.

.S OF A LINE FROM 36N134W TO 32N142W TO 31N153W AREA OF NE TO E 
WINDS TO 25 KT. SEAS TO 3 M...HIGHEST E OF 142W.
.24 HOUR FORECAST S OF A LINE FROM 39N130W TO 34N134W TO 30N144W 
AREA OF NE WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST S OF A LINE FROM 40N132W TO 30N147W AREA OF N 
TO NE WINDS TO 25 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA 
BOUNDED BY A LINE FROM 35N164W TO 48N161W TO 54N151W TO 43N146W 
TO 35N164W...FROM 51N TO 55N W OF 177E...FROM 56N TO 59N W OF 
162W...AND FROM 59N TO 61N BETWEEN 145W AND 151W.
.24 HOUR FORECAST DENSE FOG FROM 59N TO 61N BETWEEN 172W AND 
178W...WITHIN 90 NM EITHER SIDE OF A LINE FROM 41N153W TO 
53N144W...FROM 59N TO 61N BETWEEN 143W AND 150W...AND W OF A 
LINE FROM 49N176W TO 54N168W TO 57N169W.
.48 HOUR FORECAST DENSE FOG N OF A LINE FROM 56N163W TO 53N169W 
TO 53N179E. 

.LIGHT FREEZING SPRAY WITHIN 60 NM OF 60N171W. 
.24 HOUR FORECAST CONDITIONS IMPROVED. 

.FORECASTER FIGURSKEY. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 03.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC TUE MAY 19.
24 HOUR FORECAST VALID 1800 UTC WED MAY 20.
48 HOUR FORECAST VALID 1800 UTC THU MAY 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 25N140W TO 23N140W TO 23N138W TO 23N136W TO 25N140W NE
TO E WINDS 20 TO 25 KT. SEAS 3.0 M IN MIXED NE SWELL. ELSEWHERE 
WITHIN 20N111W TO 30N119W TO 30N140W TO 05N140W TO 09N120W TO 
20N111W...INCLUDING WITHIN 60 NM OF SHORE...WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.5 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 21N130W TO 30N140W TO 07N140W TO 
09N119W TO 13N114W TO 18N131W TO 21N130W WINDS 20 KT OR LESS. 
SEAS 2.5 TO 3.0 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 20N137W TO 30N136W TO 30N140W TO 
07N140W TO 11N130W TO 15N136W TO 20N137W WINDS 20 KT OR LESS. 
SEAS 2.5 TO 3.0 M IN N TO NE SWELL. WITHIN 30N125W TO 30N131W TO 
29.5N129W TO 29.5N126.5W TO 30N125W WINDS 20 KT OR LESS. SEAS 2.5
M IN N SWELL.

.09 HOUR FORECAST WITHIN 12N87W TO 12N88W TO 11N88W TO 11N86W TO
12N87W E WINDS 20 TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 11N88W TO 10N88W TO
11N86W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 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.

CONVECTION VALID AT 1930 UTC TUE MAY 19...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10.5N75W TO 04.5N78W TO 08N88W. ITCZ FROM 
08N91.5W TO 08.5N104W TO 06N120W TO 07.5N131W TO BEYOND 
07.5N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION FROM 
04N TO 10N E OF 94W AND FROM 03N TO 13N BETWEEN 100W AND 135W.

$$

.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.