HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC FRI MAY 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MAY 01.
24 HOUR FORECAST VALID 0600 UTC MAY 02.
48 HOUR FORECAST VALID 0600 UTC MAY 03.
.WARNINGS.
...GALE WARNING...
.LOW 57N164W 985 MB MOVING N 20 KT. N OF A LINE FROM 40N160W TO
45N145W WINDS 25 TO 40 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW INLAND NEAR 65N163W 992 MB. ASSOCIATED
CONDITIONS DIMINISHED.
...GALE WARNING...
.LOW 45N166W 999 MB MOVING NE 35 KT. WITHIN AN AREA BOUNDED BY A
LINE FROM 31N180W TO 50N180W TO 50N160W TO 38N160W TO 31N180W
WINDS 25 TO 40 KT. SEAS 2.5 TO 6 M...HIGHEST NEAR 42N166W.
.24 HOUR FORECAST LOW 59N153W 1000 MB. WITHIN 420 NM E QUADRANT
WINDS 30 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE WITHIN 360 NM E OF A
LINE FROM 39N165W TO 48N156W...AND FROM 52N TO 61N BETWEEN 165W
AND 137W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS DIMINISHED.
.SYNOPSIS AND FORECAST.
.FROM 30N TO 45N BETWEEN 119W AND 128W WINDS 20 TO 30 KT. SEAS TO
3 M.
.24 HOUR FORECAST FROM 35N TO 51N BETWEEN 121W AND 129W WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST FROM 39N TO 53N BETWEEN 125W AND 132W WINDS 20
TO 30 KT. SEAS 2.5 TO 3.5 M.
.LOW 48N134W 1020 MB MOVING SE 20 KT. WITHIN 360 NM SW...AND 240
NM W QUADRANTS WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 42N131W 1024 MB. WITHIN 240 NM W SEMICIRCLE
WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.
.24 HOUR FORECAST LOW 54N170W 991 MB. N OF 34N BETWEEN 170W AND
180W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW 49N166W 1012 MB. WITHIN 600 NM W SEMICIRCLE
WINDS TO 25 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST NEW COMPLEX LOW WITH MAIN CENTER 41N157W 1010
MB AND SECOND CENTER 47N156W 1010 MB. WITHIN 360 NM E OF A LINE
FROM 59N150W TO SECOND CENTER TO MAIN CENTER...AND WITHIN 180 NM
W SEMICIRCLE OF MAIN CENTER WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 180 NM E OF A
LINE FROM 51N177W TO 60N169W...AND FROM 49N TO 56N BETWEEN 161W
AND 149W.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM E OF A LINE FROM
51N177W TO 61N146W...AND FROM 53N TO 61N BETWEEN 148W AND 140W.
.48 HOUR FORECAST DENSE FOG FROM 51N TO 61N BETWEEN 155W AND
145W.
.FORECASTER BYRD. 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 FRI MAY 1.
24 HOUR FORECAST VALID 0600 UTC SAT MAY 2.
48 HOUR FORECAST VALID 0600 UTC SUN MAY 3.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 18N138W TO 18N139W TO 18N140W TO 17N140W TO 17N138W TO
18N138W NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M IN N TO NE
SWELL. ELSEWHERE WITHIN 17N133W TO 20N137W TO 21N140W TO 14N140W
TO 12N137W TO 13N134W TO 17N133W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN N TO NE SWELL.
.24 HOUR FORECAST WITHIN 16N136W TO 22N138W TO 23N140W TO
10N140W TO 12N131W TO 16N136W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 20N140W TO 17N139W TO 12N140W TO
10N131W TO 13N130W TO 20N140W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NE TO E SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0900 UTC FRI MAY 1...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH AXIS EXTENDS FROM 08N79W TO 08N102W. ITCZ AXIS
EXTENDS FROM 08N102W TO 07N120W TO BEYOND 08N140W. NUMEROUS
MODERATE TO SCATTERED STRONG FROM 04N TO 11N BETWEEN 130W AND
138W. SCATTERED MODERATE TO ISOLATED STRONG FROM 03N TO 09N
BETWEEN 77W AND 103W...AND FROM 03N TO 11N BETWEEN 112W AND 127W.
.FORECASTER CHAN. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0600 UTC MAY 01 2026.
24 HOUR FORECAST VALID 0600 UTC MAY 02 2026.
48 HOUR FORECAST VALID 0600 UTC MAY 03 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.24 HOUR FORECAST NEW FRONT 30N168W 26N170W 24N172W MOVING SE 30
KT.
WINDS 20 TO 25 KT N OF FRONT.
.48 HOUR FORECAST FRONT 30N160W 25N164W 23N170W 22N180W. WINDS 20
TO 25 KT WITHIN 120 NM NW OF FRONT.
.TROUGH 16N146W 20N146W MOVING WSW 10 KT. ISOLATED MODERATE TSTMS
WITHIN 90 NM W OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED. NEW TROUGH 18N140W 12N146W.
.48 HOUR FORECAST TROUGH 16N140W 11N143W.
.WINDS 20 TO 25 KT FROM 10N TO 13N W OF 166W...AND FROM
15N TO 20N E OF 146W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 08N TO 15N W OF
175W...AND
FROM 16N TO 19N BETWEEN E OF 148W.
.48 HOUR FORECAST WINDS EASED TO 20 KT OR LESS EXCEPT FOR WINDS
INCLUDED ABOVE.
SEAS 2.5 TO 3 M FROM 08N TO 13N W OF 170W...AND WITHIN 210 NM N OF
LINE 13N140W 17N146W 22N157W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M WITHIN AN AREA BOUNDED BY
30N160W 19N164W 17N180W 08N180W 06N170W 08N140W 24N140W 30N149W
30N160W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF 08N..EXCEPT FOR AN AREA
BOUNDED BY 30N161W 23N173W 16N177W 19N159W 26N156W 21N140W 30N140W
30N161W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 08N140W 03N148W 03N154W...AND 08N146W 08N151W 05N166W
06N174W 07N180W. ISOLATED MODERATE TSTMS WITHIN 120 NM OF ITCZ
W OF 171W...AND E OF 151W.
$$
.FORECASTER TSAMOUS. HONOLULU HI.=