HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC SAT MAY 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).
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 0000 UTC MAY 30.
24 HOUR FORECAST VALID 0000 UTC MAY 31.
48 HOUR FORECAST VALID 0000 UTC JUN 01.
.WARNINGS.
...GALE WARNING...
.LOW 54N168W 1008 MB MOVING SE 20 KT. FROM 44N TO 51N BETWEEN
159W AND 177W WINDS 25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 48N161W 1001 MB. WITHIN 420 NM N AND 480 NM
NW QUADRANTS AND FROM 38N TO 46N BETWEEN 149W AND 174W WINDS 20
TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 47N156W 992 MB.
FROM 34N TO 57N BETWEEN 137W AND 170W WINDS 25 TO 35 KT. SEAS 2.5
TO 4.5 M.
...GALE WARNING...
.S OF 49N BETWEEN 119W AND 130W AREA OF NW TO N WINDS 20 TO 30
KT. SEAS TO 3.5 M.
.24 HOUR FORECAST S OF 44N BETWEEN 117W AND 128W AREA OF NW TO N
WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST FROM 36N TO 43N E OF 128W AREA OF N WINDS 25 TO
35 KT. SEAS 3 TO 5M. ELSEWHERE S OF 51N BETWEEN 119W AND 130W
AREA OF NW TO N
WINDS TO 25 KT. SEAS TO 4 M.
.SYNOPSIS AND FORECAST.
.LOW 56N146W 1010 MB MOVING SW 05 KT. WITHIN 780 NM S QUADRANT
WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.
.24 HOUR FORECAST N OF 51N W OF 178E AREA OF SE WINDS 20 TO 30
KT. SEAS TO 3 M.
.48 HOUR FORECAST W OF A LINE FROM 41N174W TO 58N176E AREA OF E
TO SE WINDS TO 25 KT. SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 50N W OF
170W.
.24 HOUR FORECAST DENSE FOG FROM 39N TO 45N W OF 171W.
.48 HOUR FORECAST DENSE FOG FROM 46N TO 52N BETWEEN 144W AND 158W
AND FROM 36N TO 42N W OF 172W.
.FORECASTER JOSEPH. 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 0000 UTC SAT MAY 30.
24 HOUR FORECAST VALID 0000 UTC SUN MAY 31.
48 HOUR FORECAST VALID 0000 UTC MON JUN 1.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 25N114W TO 24N140W TO 10N140W TO 10N122W TO 17N113W TO
25N114W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL.
.24 HOUR FORECAST WITHIN 14N107W TO 24N113W TO 22N140W TO
08N140W TO 03.4S120W TO 03.4S83W TO 14N107W...INCLUDING WITHIN
60 NM OF SHORE AND EXCEPT LEE OF GALAPAGOS ISLANDS... WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN SW SWELL.
.48 HOUR FORECAST WITHIN 13N92W TO 24N109W TO 18N135W TO 09N137W
TO 03.4S120W TO 03S88W TO 13N92W...INCLUDING NEAR CABO
CORRIENTES AND THE GULF OF CALIFORNIA AND WITHIN 60 NM OF SHORE
AND EXCEPT LEE OF GALAPAGOS ISLANDS... WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN S TO SW SWELL.
.WITHIN 01N82W TO 03N107W TO 07N110W TO 05N130W TO 03.4S120W TO
03S80W TO 01N82W...INCLUDING THE GULF OF GUAYAQUIL AND EXCEPT
LEE OF GALAPAGOS ISLANDS... WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0
M IN S TO SW SWELL.
.06 HOUR FORECAST CONDITIONS MERGED WITH SECTION ABOVE.
.WITHIN 30N119W TO 30N132W TO 28N130W TO 28N124W TO 29N120W TO
30N119W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.24 HOUR FORECAST WITHIN 30N117.5W TO 30N121.5W TO 29.5N121W TO
29.5N119W TO 30N117.5W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN
NW SWELL.
.48 HOUR FORECAST WITHIN 30N116W TO 30N130W TO 27N126W TO
26N119W TO 30N116W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW
TO N SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0350 UTC SAT MAY 30...
.TROPICAL WAVE ALONG 96W...CLUSTERS OF SCATTERED MODERATE FROM
03N TO 10N BETWEEN 93W AND 105W.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 11N108W TO
10N126W TO 06N132W. THE ITCZ BEGINS NEAR 06N132W AND CONTINUES
BEYOND 06N140W. SCATTERED MODERATE ISOLATED STRONG FROM 01N TO
12N BETWEEN 77W AND 91W...AND FROM 03N TO 12N BETWEEN 110W AND
131W.
.FORECASTER RAMOS. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0000 UTC MAY 30 2026.
24 HOUR FORECAST VALID 0000 UTC MAY 31 2026.
48 HOUR FORECAST VALID 0000 UTC JUN 01 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 18N145W 12N144W 06N146W MOVING WNW 10 KT. ISOLATED
MODERATE TSTMS FROM 07N TO 03N BETWEEN 150W AND 144W.
.24 HOUR FORECAST TROUGH 20N149W 08N149W.
.48 HOUR FORECAST TROUGH 23N153W 13N153W.
.LOW NEAR 05N179W 1009 MB TROUGH 10N171W 05N180W. TROUGH MOVING
NW SLOWLY AND LOW MOVING NE SLOWLY. SCATTERED MODERATE TSTMS S OF
11N W OF 170W.
.24 HOUR FORECAST LOW NEAR 07N177W 1009 MB. TROUGH FROM 11N169W
TO LOW TO 04N180W. WINDS 20 TO 25 KT WITHIN 120 NM E SEMICIRCLE OF
LOW.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 14N174W 07N180W. WINDS
EASED TO 20 KT OR LESS.
.48 HOUR FORECAST NEW TROUGH 30N155W 26N160W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M W OF LINE 30N162W 17N172W 08N163W 09N180W...AND E
OF LINE 24N140W 23N147W 12N161W 06N156W 12N140W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 21N TO 10N E OF 152W.
.48 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 06N140W 07N142W...AND 08N152W 05N161W 07N169W. SCATTERED
MODERATE TSTMS S OF 10N BETWEEN 170W AND 150W.
$$
.FORECASTER TROTTER. HONOLULU HI.=