HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAY 30.
24 HOUR FORECAST VALID 1200 UTC MAY 31.
48 HOUR FORECAST VALID 1200 UTC JUN 01.
.WARNINGS.
...GALE WARNING...
.LOW 50N164W 1004 MB MOVING SE 15 KT AND INTENSIFYING WILL
BECOME NEARLY STATIONARY AFTER 24 HOURS. FROM 39N TO 56N
BETWEEN 152W AND 179W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW 47N156W 994 MB. WITHIN 180 NM SE AND E
OF A FRONT FORECAST TO EXTEND FROM 47N153W TO 41N155W TO
38N164W...AND WITHIN 300 NM NW QUADRANT WINDS 25 TO 35 KT.
SEAS 3 TO 5 M. ELSEWHERE FROM 33N TO 58N BETWEEN 138W AND
172W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 49N156W 983
MB. BETWEEN 180 NM AND 660 NM NE...BETWEEN 240 NM AND 900
NM SE...BETWEEN 120 NM AND 480 NM SW...AND BETWEEN 60 NM
AND 480 NM NW QUADRANTS WINDS 30 TO 45 KT. SEAS 4 TO 7 M.
ELSEWHERE FROM 33N TO 60N BETWEEN 136W AND 171W WINDS 20 TO
30 KT. SEAS 3 TO 6 M.
...GALE WARNING...
.FROM 30N TO 42N BETWEEN 119W AND 128W NW TO N WINDS 20 TO
30 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 30N TO 45N BETWEEN 118W AND 129W NW
TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.36 HOUR FORECAST FROM 39N TO 43N E OF 127W N WINDS 25 TO
35 KT. SEAS 3 TO 5 M.
.48 HOUR FORECAST FROM 30N TO 52N BETWEEN 120W AND 130W NW
TO N WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
.SYNOPSIS AND FORECAST.
.LOW 55N147W 1012 MB MOVING W 10 KT. WITHIN 900 NM SE
QUADRANT WINDS LESS THAN 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.
.24 HOUR FORECAST NEW LOW 44N180W 1011 MB. W OF A LINE
FROM 43N176W TO 57N176E SE WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.48 HOUR FORECAST LOW 39N175W 1009 MB. WITHIN 240 NM NE...
420 NM SE...AND 360 NM SW QUADRANTS...AND W OF A LINE FROM
LOW CENTER TO 44N174W TO 49N179W TO 56N174E WINDS TO 25 KT.
SEAS TO 3 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO
51N W OF 160W.
.24 HOUR FORECAST DENSE FOG FROM 37N TO 46N BETWEEN 151W
AND 163W...AND FROM 38N TO 45N W OF 176W.
.48 HOUR FORECAST DENSE FOG FROM 37N TO 53N BETWEEN 142W
AND 147W...FROM 48N TO 54N BETWEEN 147W AND 159W...AND
FROM 38N TO 40N W OF 170W.
.FORECASTER MILLS. 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 SAT MAY 30.
24 HOUR FORECAST VALID 1200 UTC SUN MAY 31.
48 HOUR FORECAST VALID 1200 UTC MON JUN 1.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 30N119W TO 30N121W TO 30N124W TO 30N125W TO 29N125W TO
28N124W TO 30N119W WINDS 20 KT OR LESS. SEAS 2.5 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 26N114W TO 30N117W TO 30N127W TO
23N118W TO 20N122W TO 14N104W TO 26N114W...WITHIN 60 NM OF
SHORE...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.48 HOUR FORECAST WITHIN 29N116W TO 30N131W TO 26N127W TO
26N120W TO 26N116W TO 29N116W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN N SWELL.
.WITHIN 27N115W TO 21N121W TO 21N140W TO 09N140W TO 08N130W TO
12N111W TO 27N115W...INCLUDING WITHIN 60 NM OF SHORE...WINDS 20
KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED N AND NE SWELL. WITHIN
03N82W TO 06N105W TO 12N110W TO 08N130W TO 03.4S120W TO 03.4S82W
TO 03N82W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.5 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 13N99W TO 20N124W TO 19N140W TO
03.4S118W TO 03.4S84W TO 13N99W...EXCEPT LEE OF GALAPAGOS
ISLANDS... WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MERGING SW
AND N SWELL.
.48 HOUR FORECAST WITHIN 15N97W TO 22N111W TO 14N135W TO 07N113W
TO 03.4S104W TO 04N96W TO 15N97W...INCLUDING NEAR CABO
CORRIENTES...WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW
SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 1500 UTC SAT MAY 30...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N77W TO 07N82W TO LOW PRES NEAR 09.5N99W
1009 MB TO 11N106W TO LOW PRES NEAR 08.5N119W 1008 MB TO LOW PRES
NEAR 09.5N127W 1008 MB TO 10N126W TO 06N135W. ITCZ FROM 05N136W
TO BEYOND 06N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION
FROM 01.5N TO 10.5N E OF 89W. SCATTERED TO LOCALLY NUMEROUS
MODERATE ISOLATED STRONG CONVECTION FROM 04N TO 11.5N BETWEEN
95W AND 130W. SCATTERED MODERATE CONVECTION FROM 02N TO 09N W OF
130W.
$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC MAY 30 2026.
24 HOUR FORECAST VALID 1200 UTC MAY 31 2026.
48 HOUR FORECAST VALID 1200 UTC JUN 01 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 18N148W 12N147W 06N150W MOVING WNW 10 KT.
.24 HOUR FORECAST TROUGH 20N153W 15N151W 11N151W.
.48 HOUR FORECAST TROUGH 22N153W 17N152W 13N153W.
.LOW NEAR 07N178W 1009 MB TROUGH 08N169W 09N174W TO LOW TO
06N180W.
TROUGH MOVING N SLOWLY AND LOW MOVING NE SLOWLY. SCATTERED
MODERATE TSTMS S OF 12N W OF 165W.
.24 HOUR FORECAST LOW NEAR 11N175W 1009 MB. TROUGH FROM 11N167W
TO 11N172W TO LOW TO 07N180W. WINDS 20 TO 25 KT FROM 09N TO 14N
W OF 174W.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 11N168W 13N174W 09N180W.
WINDS EASED TO 20 KT OR LESS.
.24 HOUR FORECAST NEW TROUGH 29N160W 24N160W.
.48 HOUR FORECAST NEW TROUGH 30N154W 26N159W 23N161W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M FROM 10N TO 21N E OF 152W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M FROM 11N TO 17N E OF 145W.
.48 HOUR FORECAST SEAS LOWERED TO 2.5 M OR LOWER.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 06N140W 06N144W 02N164W 04N169W. SCATTERED
MODERATE TSTMS WITHIN 120 NM OF ITCZ.
.ISOLATED MODERATE TSTMS S OF 11N W OF 153W.
$$
.FORECASTER TSAMOUS. HONOLULU HI.=