HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2345 UTC WED MAY 27 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAY 27.
24 HOUR FORECAST VALID 1800 UTC MAY 28.
48 HOUR FORECAST VALID 1800 UTC MAY 29.
.WARNINGS.
...GALE WARNING...
.LOW 59N163W 1001 MB MOVING SE 05 KT. FROM 47N TO 53N BETWEEN
159W AND 168W WINDS 25 TO 35 KT. SEAS TO 4 M. ELSEWHERE FROM 44N
TO 56N BETWEEN 156W AND 170W WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED BELOW WITH
LOW 56N148W.
...GALE WARNING...
.FROM 38N TO 43N BETWEEN 124W AND 127W AREA OF NW TO N WINDS 25
TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE FROM 33N TO 50N BETWEEN 122W
AND 132W WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST FROM 35N TO 50N BETWEEN 125W AND 130W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 4 M.
.36 HOUR FORECAST FROM 45N TO 50N BETWEEN 125W AND 130W AREA OF
NW WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST FROM 46N TO 50N BETWEEN 124W AND 128W AREA OF
NW WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.SYNOPSIS AND FORECAST.
.LOW 58N152W 1002 MB MOVING SE 05 KT. BETWEEN 180 NM AND 600 NM S
QUADRANT...AND N OF A FRONT EXTENDING FROM 59N140W TO 59N150W
WINDS TO 25 KT. SEAS 2.5 TO 5 M.
.24 HOUR FORECAST LOW 56N148W 1006 MB. FROM 45N TO 52N BETWEEN
141W AND 158W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 56N144W 1007 MB. CONDITIONS DIMINISHED.
.24 HOUR FORECAST LOW NW OF AREA 56N168E 1007 MB. FROM 48N TO 54N
BETWEEN 170W AND 172E WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 55N168W 1008 MB. FROM 46N TO 53N BETWEEN
157W AND 175W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 90 NM OF
56N163W AND 61N170W.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM OF 56N161W...AND WITHIN
90 NM N OF A LINE FROM 55N171W TO 58N176E.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 50N BETWEEN 174W AND
180W.
.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 1800 UTC WED MAY 27.
24 HOUR FORECAST VALID 1800 UTC THU MAY 28.
48 HOUR FORECAST VALID 1800 UTC FRI MAY 29.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.COLD FRONT FROM 29N115W TO 26N124W. WITHIN 30N118W TO 30N140W
TO 26N140W TO 26N133W TO 28N123W TO 30N118W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN NW TO N SWELL.
.24 HOUR FORECAST DISSIPATING COLD FRONT FROM 28N114W TO
25N124W. WITHIN 30N140W TO 22N140W TO 23N126W TO 24N119W TO
29N115W...INCLUDING SEBASTIAN VIZCAINO BAY...WINDS 20 KT OR LESS.
SEAS 2.5 TO 3 M IN NW TO N SWELL.
.36 HOUR FORECAST WITHIN 30N117W TO 30N140W TO 13N140W TO
14N129W TO 20N117W TO 30N117W WINDS 20 KT OR LESS. SEAS
2.5 TO 3 M IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 30N119W TO 30N140W TO 13N140W TO
12N131W TO 20N111W TO 30N119W WINDS 20 KT OR LESS. SEAS 2.5
TO 3 M IN NW TO N SWELL.
.WITHIN 18N129W TO 19N140W TO 10N140W TO 12N130W TO 15N127W TO
18N129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NE TO E SWELL.
.24 HOUR FORECAST WITHIN 20N129W TO 21N140W TO 12N140W TO 12N133W
TO 14N127W TO 20N129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN N
SWELL.
.36 HOUR FORECAST CONDITIONS TO MERGE WITH THOSE DESCRIBED
ABOVE.
.15 HOUR FORECAST WITHIN 31N113W TO 31N114W TO 31N115W TO
30N115W TO 30N114W TO 31N113W...INCLUDING THE GULF OF
CALIFORNIA...S TO SW WINDS 20 TO 25 KT OR LESS. SEAS LESS THAN
2.5 M.
.18 HOUR FORECAST LOW PRES NEAR 31N114W 1008 MB. WITHIN
31.5N114W TO 31.5N115W TO 31N115W TO 31N114.5W TO 31N114W TO
31N113.5W TO 31.5N114W...INCLUDING THE GULF OF CALIFORNIA...NW TO
N WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW PRES NEAR 31N114W 1009 MB. WINDS 20 KT OR
LESS. SEAS LESS THAN 2.5 M.
.30 HOUR FORECAST WITHIN 02S91W TO 00N104W TO 02S120W TO
03.4S120W TO 03S91W TO 02S91W...EXCEPT LEE OF GALAPAGOS
ISLANDS...WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 01S86W TO 03N114W TO 01N131W TO
03.4S120W TO 03S83W TO 01S86W...EXCEPT LEE OF GALAPAGOS
ISLANDS...WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN S TO SW SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 2015 UTC WED MAY 27...
.TROPICAL WAVE FROM 12N95W TO 01N96W...SCATTERED MODERATE WITHIN
60 NM W OF WAVE FROM 04N TO 08N.
.SCATTERED MODERATE ISOLATED STRONG WITHIN 60 NM OF 14N133W.
.SCATTERED MODERATE WITHIN 30 NM OF 12N106W.
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS EXTENDS FROM 11N86W TO 08N95.5W TO 09N101W
TO 09N112W TO 10N120W TO 08N127W TO 10N136W. NUMEROUS MODERATE TO
STRONG WITHIN 180 NM S OF THE TROUGH BETWEEN 110W AND 117W...ALSO
WITHIN 60 NM S OF THE TROUGH BETWEEN 117W AND 120W AND WITHIN 60
NM N OF THE TROUGH BETWEEN 120W AND 124W. SCATTERED MODERATE
ISOLATED STRONG FROM 04N TO 06N BETWEEN 106W AND 109W. SCATTERED
MODERATE FROM 03N TO 09N BETWEEN 86W AND 91W.
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 1800 UTC MAY 27 2026.
24 HOUR FORECAST VALID 1800 UTC MAY 28 2026.
48 HOUR FORECAST VALID 1800 UTC MAY 29 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 09N140W 04N143W 04N143W MOVING W SLOWLY. WINDS 20 TO 25 KT
FROM 18N TO 12N E OF 148W.
.24 HOUR FORECAST TROUGH 12N140W 03N147W. WINDS 20 TO 25 KT FROM
20N TO 15N E OF 144W.
.48 HOUR FORECAST TROUGH 12N140W 04N149W. WINDS 20 TO 25 KT FROM
20N TO 15N E OF 144W.
.TROUGH 30N157W 29N157W MOVING W 15 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.
.24 HOUR FORECAST NEW TROUGH 07N163W 07N170W 04N180W.
.48 HOUR FORECAST TROUGH 09N165W 03N180W.
.WINDS 20 TO 25 KT FROM 21N TO 16N BETWEEN 155W AND 160W...AND N
OF 21N W OF 162W.
.24 HOUR FORECAST WINDS 20 TO 25 KT N OF 21N W OF 162W.
.48 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3.0 M FROM 26N TO 12N W OF 165W...FROM 16N TO 12N E
OF 155W...AND N OF 28N E OF 150W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M N OF 20N W OF 167W...AND N OF
25N E OF 150W.
.48 HOUR FORECAST SEAS 2.5 TO 3.5 M FROM 24N TO 15N E OF 147W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 06N150W 05N165W 03N180W. ISOLATED MODERATE TSTMS WITHIN 210
NM OF ITCZ.
$$
.FORECASTER WROE. HONOLULU HI.=