East and Central North Pacific High Seas Forecast

FZPN02 KWBC 150525
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0545 UTC TUE SEP 15 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 15. 
24 HOUR FORECAST VALID 0000 UTC SEP 16.
48 HOUR FORECAST VALID 0000 UTC SEP 17.

.WARNINGS.

...GALE WARNING...
.LOW 58N174W 988 MB MOVING NE 15 KT. BETWEEN 120 NM AND 540 NM E
AND SE QUADRANTS...WITHIN 300 NM S QUADRANT...AND WITHIN 300 NM
NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M...HIGHEST SE
OF CENTER. ELSEWHERE N OF 47N BETWEEN 156W AND 178E WINDS TO 25
KT. SEAS TO 3 M.
.12 HOUR FORECAST LOW 61N170W 980 MB. BETWEEN 90 NM AND 240 NM S
SEMICIRCLE WINDS 30 TO 45 KT. SEAS 4 TO 6.5 M.
.24 HOUR FORECAST LOW 63N167W 982 MB. BETWEEN 180 NM AND 360 NM S
QUADRANT WINDS 35 TO 45 KT. SEAS 4 TO 6 M. ALSO WITHIN 420 NM S
AND 180 NM N SEMICIRCLES WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
ELSEWHERE WITHIN THE BERING SEA E OF 180W WINDS TO 25 KT. SEAS TO
2.5 M.
.48 HOUR FORECAST LOW WELL N OF AREA AND CONDITIONS DESCRIBED
WITH LOW 59N179E BELOW.

...GALE WARNING...
.LOW 33N174W 1003 MB MOVING SW 10 KT. BETWEEN 180 NM AND 540 NM N
AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE S
OF 44N W OF 167W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 30N177W 1007 MB. BETWEEN 120 NM AND 600 NM
N AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE S
OF 43N W OF 167W WINDS TO 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW SW OF AREA NEAR 29N175E 1009 MB. S OF 40N W
OF 171W WINDS TO 25 KT. SEAS TO 2.5 M.

.SYNOPSIS AND FORECAST.

.FROM 30N TO 43N BETWEEN 119W AND 128W AREA OF N TO NW WINDS 20
TO 30 KT. SEAS TO 3 M. 
.24 HOUR FORECAST FROM 30N TO 43N BETWEEN 120W AND 128W AREA OF N
TO NW WINDS TO 25 KT. SEAS TO 3.5 M. 
.48 HOUR FORECAST FROM 34N TO 52N BETWEEN 124W AND 131W AREA OF N
TO NW WINDS 20 TO 30 KT. SEAS TO 3.5 M. 

.LOW 36N144W 1022 MB MOVING W 10 KT. WITHIN 180 NM N AND NW
QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.24 HOUR FORECAST LOW W OF AREA 57N168E 996 MB. WITHIN 660 NM SE
QUADRANT WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 59N179E 1002
MB. WITHIN 720 NM SE AND 540 NM SW QUADRANTS WINDS 20 TO 30 KT.
SEAS 2.5 TO 3.5 M.

.24 HOUR FORECAST NEW LOW NEAR 60N153W 1010 MB. WITHIN 360 NM SE
OF A FRONT FROM LOW CENTER TO 50N159W WINDS 20 TO 30 KT. SEAS TO
3.5 M.
.48 HOUR FORECAST LOW NEAR 60N149W 1015 MB. WITHIN 600 NM SE
QUADRANT WINDS TO 25 KT. SEAS TO 3 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM EITHER
SIDE OF A LINE FROM 61N171W TO 64N165W TO 36N172W. 
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 45N162W TO 54N153W. 
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 45N162W TO 61N149W.

.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 TUE SEP 15.
24 HOUR FORECAST VALID 0000 UTC WED SEP 16.
48 HOUR FORECAST VALID 0000 UTC THU SEP 17.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION FIFTEEN-E NEAR 16.5N 121.6W 1005 MB AT 0300
UTC SEP 15 MOVING W OR 260 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. SEAS TO 4 M WITHIN 0 NM S SEMICIRCLE...90 NM 
NE QUADRANT AND 60 NM NW QUADRANT. ELSEWHERE WITHIN 20N119W TO 
20N123W TO 18N125W TO 15N124W TO 14N121W TO 17N117W TO 20N119W
WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0 M.
.24 HOUR FORECAST TROPICAL STORM FIFTEEN-E NEAR 16.2N 124.7W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM OF CENTER EXCEPT 60 NM NE QUADRANT. SEAS TO 4 
M WITHIN 90 NM N SEMICIRCLE. ELSEWHERE WITHIN 21N120W TO 22N130W
TO 20N133W TO 18N132W TO 15N125W TO 17N120W TO 21N120W WINDS 20
TO 33 KT. SEAS 2.5 TO 4.0 M.
.48 HOUR FORECAST TROPICAL STORM FIFTEEN-E NEAR 16.1N 128.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. SEAS TO 4
M WITHIN 90 NM N SEMICIRCLE. ELSEWHERE WITHIN 21N124W TO 24N129W
TO 23N135W TO
17N135W TO 15N125W TO 21N124W WINDS 20 TO 33 KT. SEAS 2.5 TO 4.0
M.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.NEWLY DOWNGRADED TROPICAL DEPRESSION NORBERT NEAR 20.2N 140.5W 
1006 MB AT 0300 UTC SEP 15 MOVING WNW OR 285 DEG AT 13 KT. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. SEAS TO 4 M WITHIN 0 
NM S SEMICIRCLE...90 NM NE QUADRANT AND 75 NM NW QUADRANT.
ELSEWHERE OVER FORECAST WATERS E OF 140W WITHIN 26N134W TO 
27N140W TO 18N140W TO 20N134W TO 26N134W E WINDS 20 TO 30 KT. 
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW NORBERT W OF AREA 
NEAR 20.7N 145.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
ELSEWHERE OVER FORECAST WATERS E OF 140W WITHIN 23N138W TO
26N140W TO 20N140W TO
21N138W TO 23N138W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN E
SWELL.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW NORBERT W OF AREA
NEAR
20.8N 147.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. OVER
FORECAST WATERS E OF 140W CONDITIONS IMPROVE. WINDS 20 KT OR
LESS. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST...NORBERT DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.WITHIN 16N94.5W TO 16N95W TO 16N95.5W TO 14.5N95.5W TO
14.5N94.5W TO 15N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WITHIN 15N95W TO 16N95W TO 16N96W TO 14N96W TO
12N97W TO 13N95W TO 15N95W...INCLUDING THE GULF OF
TEHUANTEPEC... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M.

.WITHIN 11N86W TO 11N88W TO 11N89W TO 10N90W TO 10N88W TO
11N86W...INCLUDING THE GULF OF PAPAGAYO... NE TO E WINDS 20 TO
25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.WITHIN 04N102W TO 04N106W TO 00N120W TO 03.4S120W TO 03.4S94W
TO 04N102W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW
SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 30N120W TO 30N125W TO 27N125W TO 27N122W TO 30N120W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

CONVECTION VALID AT 0300 UTC TUE SEP 15...

.T.D. NORBERT...SCATTERED MODERATE CONVECTION BETWEEN 120-150 NM
IN THE NE QUADRANT.

.T.D. FIFTEEN-E...NUMEROUS MODERATE TO ISOLATED STRONG 
WITHIN 60-240 NM IN THE SE SEMICIRCLE.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 07N115W TO 14N130W TO BEYOND 
12N140W. SCATTERED MODERATE FROM 05N TO 11N BETWEEN 80W AND 
90W...FROM 05N TO 12N BETWEEN 100W AND 105W...AND FROM 03N TO 07N
BETWEEN 115W AND 120W.

.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 180W

SYNOPSIS VALID 0000 UTC SEP 15 2026.
24 HOUR FORECAST VALID 0000 UTC SEP 16 2026.
48 HOUR FORECAST VALID 0000 UTC SEP 17 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COMPLEX FRONT 30N173W 28N174W 25N180W MOVING S SLOWLY. SECOND 
FRONT
30N176W 27N177W 28N180W MOVING SE 10 KT. TROUGH 28N172W 24N174W
20N180W NEARLY STATIONARY. WINDS 20 TO 25 KT N OF 27N W OF 167W.
SEAS 2.5 TO 4 M NW OF LINE 30N175W 26N180W. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST NEW LOW 28N178W 1007 MB. FRONTS MERGED AND
WEAKENED TO TROUGH 29N177W 28N175W 21N180W. WINDS 20 TO 25 KT N
OF 27N W OF 168W. SEAS 2.5 TO 3 M NW OF LINE 30N175W 27N180W.
.48 HOUR FORECAST LOW AND TROUGH MOVED W OF AREA. ASSOCIATED
WINDS AND SEAS MOVED W OF AREA.

.TROPICAL DEPRESSION NORBERT NEAR 20.2N 140.5W 1006 MB AT 0300
UTC SEP 15 MOVING WNW OR 285 DEG AT 13 KT. WINDS 20 TO 30 KT AND
SEAS 2.5 TO 4 M FROM 19N TO 25N E OF 141W.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW NORBERT NEAR 20.7N
145.0W. WINDS 20 TO 30 KT AND SEAS 2.5 TO 3.5 M FROM 20N TO 25N
BETWEEN 140W AND 147W.
.48 HOUR FORECAST...LOW WEAKENED TO TROUGH 30N148W 20N151W
17N151W. WINDS 20 TO 25 KT AND SEAS 2.5 TO 3 M FROM 20N TO 25N
BETWEEN 148W AND 152W.

.TROUGH 30N148W 25N151W 17N155W MOVING NW SLOWLY AND ERODING FROM
THE S. SCATTERED MODERATE TSTMS N OF 27N E OF 147W.
.24 HOUR FORECAST TROUGH 30N152W 23N156W 19N157W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH 15N154W 12N154W 11N152W. ISOLATED MODERATE TSTMS WITHIN 90
NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.OTHERWISE WINDS 20 KT OR LESS AND SEAS 2.5 M OR LOWER REMAINDER
OF FORECAST AREA.

.MONSOON TROUGH 07N180W 09N171W 10N165W 13N160W 12N154W 12N140W.
ISOLATED MODERATE TSTMS WITHIN 240 NM OF TROUGH.


$$

.FORECASTER ALMANZA. HONOLULU HI.