HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC TUE MAY 12 2026
CCODE/1:31:12:01:00/AOW+POR/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 1200 UTC MAY 12.
24 HOUR FORECAST VALID 1200 UTC MAY 13.
48 HOUR FORECAST VALID 1200 UTC MAY 14.
.WARNINGS.
...STORM WARNING...
.LOW 56N153W 997 MB MOVING N 15 KT. WITHIN 90 NM OF 59N152W AREA
OF E WINDS 40 TO 50 KT. SEAS 3 TO 5 M. ALSO WITHIN 60 NM EITHER
SIDE OF A LINE FROM 58N154W TO 59N148W AREA OF E TO SE WINDS 30
TO 40 KT. SEAS TO 4 M. ELSEWHERE WITHIN 420 NM NW...540 NM
NE...AND 600 NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5
M...HIGHEST NE AND SE QUADRANTS.
.24 HOUR FORECAST LOW DISSIPATED. FROM 58N TO 60N BETWEEN 141W
AND 149W AREA OF SE WINDS LESS THAN 25 KT. SEAS TO 3 M IN S
SWELL.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
...STORM WARNING...
.COMPLEX LOW WITH MAIN CENTER 54N176W 985 MB MOVING SE 25 KT AND
WILL TURN E AFTER 12 HOURS. WITHIN 240 NM SW SEMICIRCLE AREA OF
NW WINDS 35 TO 45 KT. SEAS 4 TO 7 M. ALSO FROM 50N TO 56N
BETWEEN 175W AND 178E AND FROM 43N TO 50N BETWEEN 161W AND 180W
WINDS 25 TO 40 KT. SEAS 4 TO 6.5 M. AND WITHIN 420 NM NW...660
NM NE...1200 NM SE...AND 1020 NM S QUADRANTS WINDS 20 TO 30 KT.
SEAS 2.5 TO 5 M. ELSEWHERE WITHIN 1320 NM S QUADRANT WINDS LESS
THAN 25 KT. SEAS 2.5 TO 3.5 M IN NW SWELL.
.12 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 51N170W 992 MB.
FROM 48N TO 51N BETWEEN 168W AND 173W AREA OF W WINDS 40 TO 50
KT. SEAS 5 TO 8 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 50N160W 1001 MB.
FROM 44N TO 51N BETWEEN 155W AND 171W AREA OF W TO NW WINDS 25
TO 40 KT. SEAS 4 TO 7 M. ALSO WITHIN 840 NM NW AND 300 NM NE
QUADRANTS...AND WITHIN 720 NM S SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 3 TO 5.5 M. ELSEWHERE WITHIN 1260 NM SW QUADRANT WINDS LESS
THAN 25 KT. SEAS TO 4 M IN NW SWELL.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 55N154W 1003 MB.
FROM 44N TO 51N BETWEEN 149W AND 166W AREA OF SW TO W WINDS 25
TO 35 KT. SEAS 4 TO 5.5 M. ALSO FROM 42N TO 54N BETWEEN 141W AND
170W WINDS 20 TO 30 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 540 NM E
AND 1320 NM S QUADRANTS WINDS LESS THAN 25 KT. SEAS 2.5 TO 3.5 M
IN W TO NW SWELL.
...GALE WARNING...
.36 HOUR FORECAST LOW 52N172W 1006 MB. FROM 46N TO 51N BETWEEN
166W AND 174W AREA OF SW TO W WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 55N154W
ABOVE.
...GALE WARNING...
.48 HOUR FORECAST LOW W OF AREA 46N172E 989 MB. W OF A LINE FROM
39N180W TO 44N177W TO 47N180W AREA OF SE TO S WINDS 30 TO 45 KT.
SEAS 3 TO 6 M. ELSEWHERE W OF A LINE FROM 36N180W TO 43N174W TO
48N180W AREA OF SE TO S WINDS 20 TO 30 KT. SEAS TO 4 M.
.SYNOPSIS AND FORECAST.
.FROM 32N TO 41N BETWEEN 120W AND 128W AREA OF NW TO N WINDS TO
25 KT. SEAS TO 3 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.
.48 HOUR FORECAST FROM 31N TO 43N BETWEEN 120W AND 129W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS TO 4 M.
.LOW 46N135W 1007 MB MOVING NE 15 KT. FROM 36N TO 49N BETWEEN
131W AND 151W WINDS 20 TO 30 KT. SEAS TO 4 M. ELSEWHERE WITHIN
960 NM SW QUADRANT WINDS LESS THAN 25 KT. SEAS 2.5 TO 3.5 M IN
NW SWELL.
.24 HOUR FORECAST LOW 49N126W 1015 MB. FROM 40N TO 50N BETWEEN
124W AND 139W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.
.24 HOUR FORECAST...EXCEPT AS DESCRIBED WITH LOW 50N160W IN
WARNINGS SECTION ABOVE...NW OF A LINE FROM 56N180W TO 58N176W
AREA OF NW WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST NEW LOW 58N175W 1008 MB. EXCEPT AS DESCRIBED
WITH LOW 55N154W IN WARNINGS SECTION ABOVE...FROM 52N TO 57N
BETWEEN 165W AND 175W AREA OF W TO NW WINDS TO 25 KT. SEAS 2.5
TO 3.5 M.
.48 HOUR FORECAST S OF A LINE FROM 30N171W TO 34N155W AREA OF NE
WINDS LESS THAN 25 KT. SEAS TO 3 M IN MIXED SWELL.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 49N TO 57N
BETWEEN 139W AND 152W...AND FROM 51N TO 62N BETWEEN 163W AND
179E.
.24 HOUR FORECAST DENSE FOG N OF A LINE FROM 54N172E TO 52N180W
TO 53N168W TO 54N164W.
.48 HOUR FORECAST DENSE FOG FROM 49N TO 54N BETWEEN 152W AND
161W...FROM 55N TO 62N BETWEEN 159W AND 170W...AND W OF A LINE
FROM 57N180W TO 60N170W TO 62N170W.
.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 1200 UTC TUE MAY 12.
24 HOUR FORECAST VALID 1200 UTC WED MAY 13.
48 HOUR FORECAST VALID 1200 UTC THU MAY 14.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 16N94W TO 16N95W TO 15N96W TO 13N96W TO 13N95W TO 14N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.
.WITHIN 12N86W TO 11N88W TO 10N88W TO 10N86W TO 11N86W TO
12N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 11N88W TO 10N87W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 11N86W TO 11N87W TO 11N88W TO 10N88W TO
10N86W TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.WITHIN 01S105W TO 01S118W TO 03.4S120W TO 03.4S101W TO 01S105W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 02S114W TO 02S116W TO 03S120W TO
03.4S120W TO 03.4S112W TO 02S114W WINDS 20 KT OR LESS. SEAS TO
2.5 M IN MIXED SE AND SW SWELL.
.12 HOUR FORECAST WITHIN 15N134W TO 16N137W TO 14N140W TO
11N140W TO 11N136W TO 12N134W TO 15N134W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST WITHIN 13N126W TO 19N140W TO 10N140W TO
11N134W TO 08N127W TO 09N123W TO 13N126W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL. WITHIN 26N134W TO 25N140W TO
22N140W TO 22N136W TO 24N134W TO 26N134W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 19N128W TO 26N136W TO 26N140W TO
09N140W TO 09N132W TO 12N128W TO 19N128W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1400 UTC TUE MAY 12...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N85W TO 05N100W TO 08N111W TO 05N119W TO
08N133W TO 06N140W. ISOLATED TO WIDELY SCATTERED MODERATE AND
ISOLATED STRONG FROM 03N TO 09N BETWEEN 79W AND 89W...FROM 01N
TO 09N BETWEEN 90W AND 103W...FROM 03N TO 15N BETWEEN 107W AND
110W...AND WITHIN 240 NM EITHER SIDE OF MONSOON TROUGH BETWEEN
114W AND 134W. SIMILAR CONVECTION WITHIN 300 NM OF MEXICO
BETWEEN 92W AND 99W.
$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC MAY 12 2026.
24 HOUR FORECAST VALID 1200 UTC MAY 13 2026.
48 HOUR FORECAST VALID 1200 UTC MAY 14 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 30N141W 26N147W 23N155W NEARLY STATIONARY AND DISSIPATING.
.24 HOUR FORECAST TROUGH DISSIPATED.
.TROUGH 08N140W 03N144W MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 02N TO 09N E OF 147W.
.24 HOUR FORECAST TROUGH 08N143W 03N147W.
.48 HOUR FORECAST TROUGH DISSIPATED.
.WINDS 20 TO 25 KT FROM 05N TO 24N BETWEEN 151W AND 178W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 07N TO 26N.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 08N.
.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 06N TO 22N BETWEEN 150W AND 175W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 07N TO 24N.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF 06N.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 06N145W 06N155W 06N164W 04N174W 04N180W. ISOLATED TO
SCATTERED MODERATE TSTMS WITHIN 210 NM N OF ITCZ...AND WITHIN
150 NM S OF ITCZ.
$$
.FORECASTER TSAMOUS. HONOLULU HI.=