HSFEPI
HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC WED MAY 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 13.
24 HOUR FORECAST VALID 0000 UTC MAY 14.
48 HOUR FORECAST VALID 0000 UTC MAY 15.
.WARNINGS.
...STORM WARNING...
.LOW 51N170W 992 MB MOVING E 30 KT. WITHIN 150 NM S AND SW
QUADRANTS WINDS 40 TO 50 KT. SEAS 5 TO 7 M. ALSO WITHIN 480 NM
SE...420 NM SW...AND 360 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS
3 TO 6 M...HIGHEST S OF CENTER. ELSEWHERE CONDITIONS DESCRIBED
WITH LOW 55N166W BELOW.
.24 HOUR FORECAST LOW 51N151W 1006 MB. WITHIN 600 NM SW
SEMICIRCLE WINDS 20 TO 30 KT. SEAS 3 TO 6 M. ELSEWHERE S OF THE
ALEUTIAN ISLANDS N OF 33N BETWEEN 144W AND 177W WINDS TO 25 KT.
SEAS 2.5 TO 4.5 M.
.48 HOUR FORECAST LOW NEAR 55N150W 1006 MB. BETWEEN 300 NM AND
720 NM SE AND S QUADRANTS WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M.
ELSEWHERE FROM 34N TO 56N BETWEEN 135W AND 165W WINDS TO 25 KT.
SEAS 2.5 TO 4 M.
...GALE WARNING...
.LOW 58N154W 997 MB MOVING NW 10 KT. WITHIN 120 NM NE OF A FRONT
FROM 60N149W TO 57N142W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M.
ELSEWHERE N OF 50N BETWEEN 125W AND 155W WINDS TO 25 KT. SEAS TO
3 M.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DIMINISHED.
...GALE WARNING...
.30 HOUR FORECAST LOW 50N166W 1008 MB. FROM 45N TO 51N BETWEEN
162W AND 172W WINDS 25 TO 35 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 55N150W
ABOVE.
...GALE WARNING...
.36 HOUR FORECAST LOW W OF AREA 47N172E 982 MB. W OF A LINE FROM
39N180W TO 44N177W TO 47N180W AREA OF SE TO S WINDS 30 TO 45 KT.
SEAS 3 TO 6 M.
.48 HOUR FORECAST LOW W OF AREA 50N179E 981 MB. FROM 38N TO 53N W
OF 165W WINDS 25 TO 40 KT. SEAS 3 TO 7.5 M...HIGHEST S OF THE
ALEUTIAN ISLANDS ALONG 180W. ELSEWHERE FROM 35N TO 55N W OF 163W
WINDS TO 25 KT. SEAS TO 3 M.
.SYNOPSIS AND FORECAST.
.LOW 46N133W 1011 MB MOVING NE 15 KT. WITHIN 1020 NM SW QUADRANT
WINDS TO 25 KT. SEAS TO 3 M...HIGHEST NEAR 41N135W.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.
.COMPLEX LOW WITH MAIN CENTER 55N166W 990 MB MOVING NE 10 KT.
BETWEEN 240 NM AND 600 NM W SEMICIRCLE...AND S OF THE ALEUTIAN
ISLANDS NW OF A LINE FROM 31N180W TO 33N170W TO 48N150W TO
56N159W...EXCEPT WHERE CONDITIONS DESCRIBED IN STORM WARNING
ABOVE...WINDS TO 25 KT. SEAS 2.5 TO 5.5 M...HIGHEST CONDITIONS S
OF THE ALEUTIAN ISLANDS.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 58N165W 1002
MB. WITHIN 150 NM EITHER SIDE OF A LINE FROM 54N166W TO 59N177E
WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST COMBINED LOW NEAR 57N162W 1009 MB. CONDITIONS
DIMINISHED.
.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 51N TO 55N W OF
176E...WITHIN 720 NM NE OF A LINE FROM 50N173W TO 60N178E...AND
WITHIN 90 NM OF ALASKA COAST BETWEEN 134W AND 154W.
.24 HOUR FORECAST DENSE FOG WITHIN 270 NM EITHER SIDE OF A LINE
FROM 51N158W TO 60N180W.
.48 HOUR FORECAST DENSE FOG FROM 47N TO 54N W OF 160W...AND
WITHIN 150 NM EITHER SIDE OF A LINE FROM 50N168W TO 40N175W.
.48 HOUR FORECAST LIGHT FREEZING SPRAY WITHIN 60 NM OF 59N167W.
.FORECASTER ANDERSON. 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 WED MAY 13.
24 HOUR FORECAST VALID 0000 UTC THU MAY 14.
48 HOUR FORECAST VALID 0000 UTC FRI MAY 15.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.GULF OF TEHUANTEPEC WITHIN 16N94.5W TO 16N95.5W TO 15.5N95.5W
TO 15N95.5W TO 15N95W TO 16N94.5W N TO NE WINDS 20 TO 30 KT.
SEAS TO 2.5 M.
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 15N N WINDS 20 TO 25
KT. SEAS LESS THAN 2.5 M.
.45 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.
.WITHIN 13N135W TO 14N135W TO 14N137W TO 13N137W TO 12N140W TO
11N138W TO 13N135W WINDS 20 KT OR LESS. SEAS 2.5 M IN MIXED
SWELL.
.24 HOUR FORECAST WITHIN 25N137W TO 19N137W TO 25N140W TO
11N140W TO 14N131W TO 19N136W TO 25N137W WINDS 20 KT OR LESS.
SEAS 2.5 M IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WITHIN 17N130W TO 22N134W TO 21N140W TO
11N140W TO 09N136W TO 17N130W WINDS 20 KT OR LESS. SEAS 2.5 M IN
MIXED SWELL.
.WITHIN 01S107W TO 01S110W TO 02S111W TO 02S120W TO 03.4S120W TO
03S103W TO 01S107W WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW
SWELL.
.24 HOUR FORECAST WITHIN 03S113W TO 02S113W TO 03S116W TO
03.4S117W TO 03.4S113W TO 03S113W WINDS 20 KT OR LESS. SEAS 2.5 M
IN S TO SW SWELL.
.48 HOUR FORECAST WITHIN 02.5S119W TO 02.5S119.5W TO 02.5S120W
TO 03.4S120W TO 03.4S118.5W TO 02.5S119W WINDS 20 KT OR LESS.
SEAS 2.5 M IN MIXED S AND SE SWELL.
.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.
CONVECTION VALID AT 0230 UTC WED MAY 13...
.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N75W TO 09.5N83W TO 09N87W. ITCZ EXTENDS
FROM 09N87W TO 08N93W TO 05.5N100W TO 08.5N115W TO 07N125W TO
09.5N136W TO BEYOND 09N140W. SCATTERED MODERATE ISOLATED STRONG
CONVECTION FROM 03N TO 11.5N BETWEEN 81W AND 104W AND FROM 06.5N
TO 11.5N BETWEEN 125W AND 138W. SCATTERED MODERATE TO STRONG
CONVECTION FROM 02N TO 11.5N BETWEEN 109W AND 124W.
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.
NATIONAL WEATHER SERVICE HONOLULU HI
NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W
SYNOPSIS VALID 0000 UTC MAY 13 2026.
24 HOUR FORECAST VALID 0000 UTC MAY 14 2026.
48 HOUR FORECAST VALID 0000 UTC MAY 15 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST.
.TROUGH 08N141W 06N144W 03N146W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS FROM 09N TO 04N E OF 146W.
.24 HOUR FORECAST TROUGH DISSIPATED.
.24 HOUR FORECAST NEW TROUGH 30N157W 22N161W.
.48 HOUR FORECAST TROUGH 30N156W 20N157W.
.WINDS 20 TO 25 KT FROM 25N TO 10N W OF 148W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 28N TO 10N BETWEEN 180W
AND 140W.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF LINE 30N166W 23N180W
15N180W 23N162W 26N144W 30N145W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M N OF LINE 30N148W 27N150W 30N143W...AND W OF LINE
23N180W 22N168W 17N161W 20N150W 17N143W 08N148W 05N170W 08N180W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 30N172W
26N180W 09N180W 11N140W 25N140W 23N154W 18N154W 16N171W 30N161W
30N172W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N165W 25N180W
08N180W 12N140W 24N140W 30N148W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.ITCZ 03N152W 05N163W 05N180W. SCATTERED MODERATE TSTMS FROM 11N
TO 03N W OF 155W.
.ISOLATED MODERATE TSTMS FROM 22N TO 19N BETWEEN 176W AND
172W...AND S OF 02N BETWEEN 177W AND 167W.
$$
.FORECASTER TROTTER. HONOLULU HI.=