North Pacific High Seas Forecast

FZPN01 KWBC 170946
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN MAY 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC MAY 17. 
24 HOUR FORECAST VALID 0600 UTC MAY 18.
48 HOUR FORECAST VALID 0600 UTC MAY 19.

.WARNINGS.

...STORM WARNING...
.LOW 57N153W 993 MB MOVING NE 15 KT THEN TURNING NW AFTER 06
HOURS. FROM 57N TO 60N BETWEEN 149W AND 154W WINDS 35 TO 50 KT.
SEAS 3 TO 5.5 M. ALSO WITHIN 240 NM S AND E OF A FRONT FROM LOW
CENTER TO 53N149W TO 47N151W WINDS 25 TO 35 KT. SEAS 4 TO 6 M.
ELSEWHERE CONDITIONS DESCRIBED WITH LOW 57N168W BELOW.
.12 HOUR FORECAST LOW INLAND NEAR 60N154W 996 MB. N AND E OF A
FRONT FROM 59N148W TO 58N140W TO 56N137W WINDS 35 TO 50 KT. SEAS
3 TO 5.5 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND. NE OF A FRONT FROM
60N141W TO 55N134W TO 52N131W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M. ELSEWHERE CONDITIONS DESCRIBED WITH LOW 57N177W  BELOW.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 57N168W 978 MB MOVING NW 10 KT. FROM 44N TO 60N BETWEEN 138W
AND 180W...EXCEPT WHERE DESCRIBED WITH STORM WARNING
ABOVE...WINDS 25 TO 35 KT. SEAS 2.5 TO 6 M...HIGHEST CONDITIONS S
OF THE ALEUTIAN ISLANDS NEAR 54N162W. ELSEWHERE N OF 36N W OF
141W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW 57N177W 980 MB. BETWEEN 120 NM AND 300 NM
NW QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
ELSEWHERE...EXCEPT WHERE OTHERWISE DESCRIBED...S OF ALASKA N OF
42N W OF 132W AND WITHIN THE BERING SEA W OF 166W WINDS TO 25 KT.
SEAS 2.5 TO 4 M IN MIXED SWELL. 
.48 HOUR FORECAST LOW 55N177W 988 MB. FROM 43N TO 53N W OF 165W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 48N180W.
ELSEWHERE S OF THE ALEUTIAN ISLANDS N OF 40N W OF 165W...AND
WITHIN THE BERING SEA W OF 175W WINDS TO 25 KT. SEAS TO 3 M.

...GALE WARNING...
.FROM 33N TO 40N BETWEEN 121W AND 126W AREA OF N TO NW WINDS 25
TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE S OF 41N BETWEEN 119W AND
128W AREA OF N TO NW WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST FROM 33N TO 40N BETWEEN 121W AND 126W AREA OF N
TO NW WINDS 35 TO 45 KT. SEAS 3 TO 6.5 M. ELSEWHERE S OF 50N
BETWEEN 119W AND 135W WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST FROM 35N TO 42N BETWEEN 123W AND 128W AREA OF N
TO NW WINDS 20 TO 30 KT. SEAS 3 TO 4.5 M. ELSEWHERE S OF 43N
BETWEEN 118W AND 135W AREA OF N TO NE WINDS TO 25 KT. SEAS TO 3
M.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW NEAR 48N173W 1002 MB. WITHIN 240 NM
EITHER SIDE OF A LINE FROM 42N180W TO 50N155W WINDS 20 TO 30 KT.
SEAS 2.5 TO 4.5 M.
.30 HOUR FORECAST LOW 50N169W 998 MB. WITHIN 240 NM SE AND 360 NM
S QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 57N162W 992 MB. WITHIN 360 NM E QUADRANT
AND WITHIN 240 NM E OF A FRONT FROM 55N156W TO 50N158W WINDS 25
TO 35 KT. SEAS 2.5 TO 4 M...HIGHEST NEAR 54N160W. ELSEWHERE S OF
THE ALEUTIAN ISLANDS N OF 42N BETWEEN 141W AND 165W WINDS TO 25
KT. SEAS 2.5 TO 3.5 M.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST LOW 37N175W 1012 MB. WITHIN 240 NM OF LOW
CENTER WINDS 20 TO 30 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 59N
BETWEEN 140W AND 159W...AND WITHIN THE BERING SEA N OF 52N W OF
162W. 
.24 HOUR FORECAST DENSE FOG FROM 47N TO 59N BETWEEN 131W AND
142W...AND WITHIN THE BERING SEA...EXCEPT WITHIN 120 NM OF
57N164W. 
.48 HOUR FORECAST DENSE FOG FROM 50N TO 60N W OF 156W.

.FORECASTER ANDERSON. OCEAN PREDICTION CENTER.

NWS 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 0600 UTC SUN MAY 17.
24 HOUR FORECAST VALID 0600 UTC MON MAY 18.
48 HOUR FORECAST VALID 0600 UTC TUE MAY 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

...GALE WARNING...
.WITHIN 31N113W TO 31N114W TO 31N115W TO 30N115W TO 30N114W TO 
30N113W TO 31N113W...INCLUDING GULF OF CALIFORNIA...S TO SW WINDS
20 TO 25 KT. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST WITHIN 31N114W TO 30.5N114W TO 30N114.5W TO 
30N114W TO 30.5N113.5W TO 31N114W...INCLUDING GULF OF 
CALIFORNIA...S TO SW WINDS 30 TO 35 KT. SEAS LESS THAN 2.5 M. 
ELSEWHERE WITHIN 31N113W TO 32N114W TO 30N114W TO 29N113W TO 
30N113W TO 31N113W...INCLUDING GULF OF CALIFORNIA...S TO SW WINDS
20 TO 30 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 31N113W TO 32N114W TO 30N115W TO 
30N114W TO 30N113W TO 31N113W...INCLUDING GULF OF CALIFORNIA...S
TO SW WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.SYNOPSIS AND FORECAST.

.WITHIN 30N119W TO 30N128W TO 29N125W TO 28N120W TO 30N119W NW 
TO N WINDS 20 TO 25 KT. SEAS 3 TO 4 M IN NW TO N SWELL. ELSEWHERE
WITHIN 30N116W TO 30N140W TO 27N140W TO 25N134W TO 26N119W TO 
30N116W...INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN N SWELL.
.24 HOUR FORECAST WITHIN 30N119W TO 30N127W TO 29N125W TO 
28N122W TO 29N119W TO 30N119W NW TO N WINDS 20 TO 25 KT. SEAS 3.5
TO 5 M IN N SWELL. ELSEWHERE WITHIN 30N116W TO 30N136W TO 
28N140W TO 04N140W TO 12N125W TO 19N123W TO 24N114W TO 30N119W 
...INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS. SEAS 
2.5 TO 3.5 M IN N TO NE SWELL.
.48 HOUR FORECAST WITHIN 30N116W TO 30N140W TO 04N140W TO 
10N125W TO 20N113W TO 30N116W...INCLUDING SEBASTIAN VIZCAINO 
BAY...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN N TO NE 
SWELL...HIGHEST NE.

.WITHIN 18N131W TO 19N134W TO 25N136W TO 27N140W TO 09N140W TO 
08N127W TO 18N131W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE 
SWELL.
.24 HOUR FORECAST CONDITIONS AS DESCRIBED IN PARAGRAPH ABOVE.

.WITHIN 00N117W TO 02N119W TO 02N129W TO 00N129W TO 03.4S120W TO
03S117W TO 00N117W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN S SWELL.
.24 HOUR FORECAST WITHIN 00N109W TO 02N116W TO 02N140W TO
03.4S120W
TO 01S120W TO 03.4S107W TO 00N109W WINDS 20 KT OR LESS. SEAS 2.5
M IN S SWELL.
.48 HOUR FORECAST WITHIN 01N130W TO 03N135W TO 03N140W TO 
00N140W TO 00N130W TO 01N130W WINDS 20 KT OR LESS. SEAS TO 2.5 M 
IN DECAYING S SWELL.
 
.WITHIN 12N86W TO 11N88W TO 10N88W TO 10N87W TO 11N86W TO 
12N86W...INCLUDING GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. 
SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.18 HOUR FORECAST WITHIN 12N86W TO 11N88W TO 10N88W TO 10N87W TO
11N86W TO 12N86W...INCLUDING GULF OF PAPAGAYO...NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
.42 HOUR FORECAST WITHIN 12N86W TO 12N89W TO 11N89W TO 10N88W TO
11N86W TO 12N86W...INCLUDING GULF OF PAPAGAYO...NE TO E WINDS 20
TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 0845 UTC SUN MAY 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 09N84W TO 05N94W TO 
06N101W. THE ITCZ AXIS EXTENDS FROM 06N101W TO 07N111W TO 
07N120W TO 06N132W TO 06N140W. NUMEROUS MODERATE TO STRONG FROM 
04N TO 09N BETWEEN 82W AND 85W. SCATTERED MODERATE ISOLATED 
STRONG FROM 01N TO 06N BETWEEN 85W AND 89W AND WITHIN 180 NM N OF
THE ITCZ BETWEEN 132W AND 137W. SCATTERED MODERATE WITHIN 60 NM 
S OF THE ITCZ BETWEEN 89W AND 92W AND WITHIN 120 NM N OF THE ITCZ
BETWEEN 114W AND 120W.

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$