HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1745 UTC SUN MAY 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 31.
24 HOUR FORECAST VALID 1200 UTC JUN 01.
48 HOUR FORECAST VALID 1200 UTC JUN 02.
.WARNINGS.
...GALE WARNING...
.LOW 48N157W 996 MB NEARLY STATIONARY. WITHIN 300 NM NW
QUADRANT...AND WITHIN 300 NM E AND SE OF A FRONT EXTENDING FROM
49N154W TO 45N154W TO 40N158W TO 39N168W WINDS 25 TO 35 KT. SEAS
TO 4 M. ELSEWHERE FROM 35N TO 55N BETWEEN 140W AND 170W WINDS 20
TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 47N157W 986 MB
AND NEW SECOND CENTER 50N154W 985 MB. WITHIN 480 NM NW QUADRANT
OF SECOND CENTER...AND WITHIN 300 NM NE AND E OF A FRONT TO
EXTEND FROM 51N152W TO 47N145W TO 40N146W WINDS 35 TO 45 KT. SEAS
3 TO 6 M. ELSEWHERE FROM 35N TO 60N BETWEEN 136W AND 168W WINDS
25 TO 35 KT. SEAS 2.5 TO 5 M.
.48 HOUR FORECAST COMBINED LOW 49N154W 987 MB. FROM 56N TO 59N
BETWEEN 148W AND 157W WINDS 35 TO 45 KT. SEAS 3 TO 6 M. ELSEWHERE
WITHIN 360 NM S AND SW QUADRANTS...AND WITHIN 240 NM NE AND E OF
A FRONT TO EXTEND FROM 56N150W TO 50N140W TO 42N140W TO 37N143W
WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M. OTHERWISE FROM 40N TO 60N
BETWEEN 135W AND 172W WINDS 20 TO 30 KT. SEAS 2.5 TO 5 M.
...GALE WARNING...
.FROM 31N TO 44N BETWEEN 119W AND 129W AREA OF NW TO N WINDS 20
TO 30 KT. SEAS TO 4 M.
.12 HOUR FORECAST FROM 37N TO 43N BETWEEN 124W AND 127W AREA OF
NW TO N WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST FROM 32N TO 45N BETWEEN 121W AND 129W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST FROM 33N TO 43N BETWEEN 122W AND 129W WINDS
LESS THAN 25 KT. SEAS TO 3.5 M.
...GALE WARNING...
.48 HOUR FORECAST NEW LOW 39N179W 1006 MB. WITHIN 240 NM NE
QUADRANT WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE FROM 35N TO
43N BETWEEN 172W AND 180W WINDS 20 TO 30 KT. SEA TO 3.5 M.
.SYNOPSIS AND FORECAST.
.FROM 52N TO 57N BETWEEN 169E AND 176E AREA OF SE WINDS 20 TO 30
KT. SEAS TO 4 M.
.24 HOUR FORECAST FROM 52N TO 56N BETWEEN 169E AND 176E AREA OF
SE WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST CONDITIONS DIMINISHED.
.24 HOUR FORECAST LOW 39N174W 1008 MB. FROM 35N TO 45N BETWEEN
170W AND 180W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW 36N154W 1012 MB. CONDITIONS DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 38N TO 44N
BETWEEN 178W AND 180W.
.24 HOUR FORECAST DENSE FOG WITHIN 90 NM OF 54N149W AND
50N157W...AND WITHIN 90 NM N OF A LINE FROM 39N174W TO 38N180W.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM E OF A LINE FROM
54N150W TO 49N142W TO 41N140W.
.FORECASTER HUFFMAN. 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 1200 UTC SUN MAY 31.
24 HOUR FORECAST VALID 1200 UTC MON JUN 1.
48 HOUR FORECAST VALID 1200 UTC TUE JUN 2.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.WITHIN 12N98W TO 24N114W TO 15N140W TO 00N140W TO 03.4S120W TO
02S91W TO 12N98W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN SW SWELL.
.24 HOUR FORECAST WITHIN 16N97W TO 19N114W TO 15N132W TO 10N135W
TO 11N114W TO 02N108W TO 16N97W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN SW SWELL.
.48 HOUR FORECAST WITHIN 11N122W TO 14N124W TO 13N126W TO
11N126W TO 09N124W TO 08N122W TO 11N122W E TO SE WINDS 20 TO 25
KT. SEAS 2.5 TO 3.0 M.
.WITHIN 30N119W TO 30N126W TO 29N124W TO 29N122W TO 30N119W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.24 HOUR FORECAST WITHIN 30N118W TO 30N129W TO 28N127W TO
27N124W TO 27N119W TO 30N118W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN NW TO N SWELL.
.48 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST WITHIN 02S113W TO 02S115W TO 03S116W TO
02S120W TO 03.4S120W TO 03.4S111W TO 02S113W WINDS 20 KT OR
LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 03S105W TO 03S112W TO 01S120W TO
03.4S120W TO 03.4S105W TO 03S105W 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 SUN MAY 31...
.TROPICAL WAVE ALONG 106W...SCATTERED MODERATE FROM 04N TO 14N
BETWEEN 98W AND 114W.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 09N82W TO 11N105W TO 08N123W TO 08N133W
TO 06N140W. SCATTERED MODERATE ISOLATED STRONG FROM 02N TO 11N
BETWEEN 114W AND 125W AND FROM 01N TO 13N BETWEEN 127W AND 140W.
.FORECASTER KONARIK. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1200 UTC MAY 31 2026.
24 HOUR FORECAST VALID 1200 UTC JUN 01 2026.
48 HOUR FORECAST VALID 1200 UTC JUN 02 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 08N163W 10N170W 10N175W 08N180W. SCATTERED MODERATE TSTMS
WITHIN 150 NM N OF TROUGH...AND 60 NM S OF TROUGH.
.24 HOUR FORECAST TROUGH 10N170W 10N180W.
.48 HOUR FORECAST TROUGH 08N165W 10N176W 08N180W.
.TROUGH 21N154W 17N153W 10N149W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 24N158W 19N154W 11N151W.
.48 HOUR FORECAST TROUGH 19N158W 12N157W.
.TROUGH 30N156W 26N159W MOVING E 10 KT.
.24 HOUR FORECAST TROUGH 30N154W 27N159W.
.48 HOUR FORECAST TROUGH DISSIPATED.
.WINDS 20 KT OR LESS OVER ENTIRE AREA.
.SEAS 2.5 M OR LESS OVER REMAINDER OF FORECAST AREA.
.MONSOON TROUGH 05N140W 06N143W 06N147W THENCE ITCZ TO 07N155W
07N159W 06N161W. SCATTERED MODERATE TSTMS WITHIN 240 NM OF ITCZ
AND MONSOON TROUGH...AND S OF ITCZ BETWEEN 155W AND 163W.
$$
.FORECASTER TSAMOUS. HONOLULU HI.=