East and Central North Pacific High Seas Forecast

Hurricane Warnings in Effect
East and Central North Pacific High Seas Forecast

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FZPN02 KWBC 211125
HSFEPI

HIGH SEAS FORECAST FOR METAREA XII
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1145 UTC THU SEP 21 2023 

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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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). 

FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH 
PACIFIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG 
WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS N OF 30N WILL BE 
LIMITED TO WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 
FEET OR GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, AND 
VOLCANIC ASH. LESSER CONDITIONS WILL BE INCLUDED FOR WARNING 
CONDITIONS AND TO PRESERVE CONTINUITY WHERE APPROPRIATE. SEND 
FEEDBACK VIA 
HTTPS://OCEAN.WEATHER.GOV/CONTACT/INDEX.PHP (ALL LOWERCASE). 

SECURITE 

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT 
TO 50N 160E 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 0600 UTC SEP 21. 
24 HOUR FORECAST VALID 0600 UTC SEP 22. 
48 HOUR FORECAST VALID 0600 UTC SEP 23. 

.WARNINGS. 

...GALE WARNING... 
.FROM 38N TO 42N BETWEEN 123W AND 126W AREA OF NW TO N WINDS 25 
TO 35 KT. SEAS 9 TO 16 FT. ELSEWHERE FROM 32N TO 51N BETWEEN 
123W AND 132W AREA OF NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 14 
FT. 
.24 HOUR FORECAST FROM 37N TO 43N BETWEEN 123W AND 129W AREA OF 
NW TO N WINDS TO 25 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST CONDITIONS DIMINISHED. 

...GALE WARNING... 
.COMPLEX LOW NW OF AREA WITH MAIN CENTER 58N164E 983 MB MOVING 
NE 10 KT. N OF 47N BETWEEN 180W AND 170E AND WITHIN 360 NM S 
QUADRANT WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. ELSEWHERE WITHIN 
420 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT. 
.24 HOUR FORECAST LOW NW OF AREA 60N172E 982 MB. WITHIN 540 NM S 
QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 16 FT...HIGHEST S 
QUADRANT. ELSEWHERE N OF 52N W OF 173W WINDS 20 TO 30 KT. SEAS 
TO 12 FT. 
.48 HOUR FORECAST LOW JUST NW OF AREA 61N180W 990 MB. N OF 55N W 
OF 174W WINDS 20 TO 30 KT. SEAS TO 12 FT. 

...GALE WARNING... 
.24 HOUR FORECAST LOW 45N161E 1004 MB. WITHIN 120 NM E 
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM 
40N TO 48N W OF 169E WINDS TO 25 KT. SEAS TO 10 FT.  
.48 HOUR FORECAST LOW 48N169W 1010 MB. FROM 44N TO 48N BETWEEN 
163W AND 176E WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. 

.SYNOPSIS AND FORECAST. 

.COMPLEX LOW WITH MAIN CENTER 60N151W 999 MB MOVING NE 15 KT. 
WITHIN 240 NM SE OF A LINE FROM 58N138W TO 43N155W WINDS 20 TO 
30 KT. SEAS TO 10 FT. 
.24 HOUR FORECAST LOW DISSIPATED INLAND. WITHIN 120 NM E OF A 
LINE FROM 56N134W TO 49N136W TO 40N146W WINDS TO 25 KT. SEAS TO 
10 FT. 
.48 HOUR FORECAST NEW LOW 46N129W 1010 MB. WITHIN 120 NM SW 
QUADRANT TO 25 KT. SEAS TO 9 FT. 

.WITHIN 90 NM EITHER SIDE OF A LINE FROM 35N177W TO 40N167W AREA 
OF NE WINDS 20 TO 30 KT. SEAS TO 8 FT. 
.24 HOUR FORECAST CONDITIONS DIMINISHED. 

.LOW 57N155W 1000 MB MOVING SE 20 KT. FROM 45N TO 64N BETWEEN 
150W AND 168W WINDS 20 TO 30 KT. SEAS TO 12 FT...HIGHEST NEAR 
50N165W. 
.24 HOUR FORECAST LOW 56N145W 1001 MB. FROM 48N TO 57N BETWEEN 
143W AND 155W WINDS TO 25 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED. 

.24 HOUR FORECAST NEW LOW 55N168W 1003 MB. FROM 46N TO 56N 
BETWEEN 160W AND 175W WINDS 20 TO 30 KT. SEAS TO 10 FT. 
.48 HOUR FORECAST LOW 53N153W 1004 MB. FROM 45N TO 54N BETWEEN 
142W AND 156W WINDS 20 TO 30 KT. SEAS TO 10 FT. 

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 43N BETWEEN 
176E AND 163E AND WITHIN 120 NM SE OF A LINE FROM 59N138W TO 
45N152W. 
.24 HOUR FORECAST DENSE FOG FROM 42N TO 49N W OF 170E AND N OF 
55N E OF 137W. 
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM SE OF A LINE FROM 
49N174W TO 44N163E. 

.FORECASTER KREKELER. 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 0600 UTC THU SEP 21.
24 HOUR FORECAST VALID 0600 UTC FRI SEP 22.
48 HOUR FORECAST VALID 0600 UTC SAT SEP 23.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM KENNETH NEAR 17.5N 125.6W 1000 MB AT 0900 UTC
SEP 21 MOVING NW OR 315 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 45
KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S
SEMICIRCLE...50 NM NE QUADRANT AND 70 NM NW QUADRANT.  SEAS 12
FT OR GREATER WITHIN 60 NM OF CENTER EXCEPT 0 NM SE QUADRANT
WITH SEAS TO 14 FT. ELSEWHERE WITHIN 20N124W TO 21N125W TO 
19N128W 
TO 16N127W TO 17N124W TO 20N124W WINDS 20 TO 33 KT. SEAS 9 TO 12
FT. REMAINDER AREA WITHIN 19N121W TO 21N123W TO 21N129W TO 
14N129W TO 12N128W TO 14N123W TO 19N121W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM KENNETH NEAR 20.0N 126.8W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 45 NM N SEMICIRCLE AND 0 
NM S SEMICIRCLE WITH SEAS TO 12 FT. ELSEWHERE WITHIN 23N125W TO 
24N126W TO 23N128W TO 20N129W TO 19N127W TO 20N126W TO 23N125W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER AREA WITHIN 21N124W
TO 23N125W TO 20N128W TO 21N130W TO 17N131W TO 16N129W TO 
21N124W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 22.9N 
126.6W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 24N125W
TO 24N126W TO 23N127W TO 22N127W TO 22N125W TO 24N125W WINDS 20 
TO 30 KT. SEAS 8 TO 9 FT. ELSEWHERE WITHIN 24N125W TO 25N126W TO 
24N129W TO 22N129W TO 21N126W TO 22N126W TO 24N125W WINDS 20 KT 
OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL.
.60 HOUR FORECAST POST-TROPICAL REMNANT LOW KENNETH NEAR 24.2N 
126.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.72 HOUR FORECAST...DISSIPATED.

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.

.LOW PRES NEAR 13N140W 1006 MB. WITHIN 15N138W TO 16N139W TO 
16N140W TO 13N140W TO 13N139W TO 14N138W TO 15N138W WINDS 20 TO 
25 KT. SEAS 9 TO 10 FT. ELSEWHERE WITHIN 20N131W TO 20N140W TO 
11N140W TO 14N131W TO 20N131W WINDS 20 KT OR LESS. SEAS 8 TO 9 
FT IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES MOVE W OF AREA. WITHIN 16N138W TO 
17N140W TO 13N140W TO 14N139W TO 14N138W TO 16N138W NE TO E WINDS
20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN 16N139.5W TO 16.5N140W TO 13.5N140W TO 
15N139W TO 16N139.5W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.

.WITHIN 31N113W TO 31N114W TO 31N115W TO 30N115W TO 30N114W TO
30N113W TO 31N113W...INCLUDING THE GULF OF CALIFORNIA... SW
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 30N123W TO 30N129W TO 29N127W TO 29N125W TO 30N123W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N SWELL.
.24 HOUR FORECAST WITHIN 30N121.5W TO 30N125.5W TO 29.5N125W TO
29.5N122.5W TO 30N121.5W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN N
SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

CONVECTION VALID AT 0830 UTC THU SEP 21...

T.S. KENNETH...NUMEROUS MODERATE TO SCATTERED STRONG FROM 15N TO
21N BETWEEN 122W AND 127W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 10N98W TO 08N120W. IT RESUMES FROM
11N133W TO 11N140W. SCATTERED MODERATE ISOLATED STRONG FROM 03N 
TO 14N E OF 115W...AND FROM 10N TO 15N BETWEEN 135W AND 140W. 

$$ 
.FORECASTER AL. NATIONAL HURRICANE CENTER.

NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC SEP 21 2023.
24 HOUR FORECAST VALID 0600 UTC SEP 22 2023.
48 HOUR FORECAST VALID 0600 UTC SEP 23 2023.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 11N166W 1010 MB MOVING NW 15 KT. ISOLATED MODERATE TSTMS
WITHIN 150 NM OF LOW.
.24 FORECAST LOW DISSIPATED.

.TROUGH 20N175W 28N174W MOV NW 10 KT. ISOLATED MODERATE TSTMS 
WITHIN
120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 24N177W 30N176W.
.48 HOUR FORECAST TROUGH 23N172E 30N173E.

.6 HOUR FORECAST NEW LOW NEAR 11N141W 1007 MB. SEE WINDS AND SEAS 
BELOW.
.24 HOUR FORECAST NEW LOW NEAR 12N143W 1007 MB. SEE WINDS AND SEAS
BELOW.
.48 HOUR FORECAST LOW NEAR 11N148W 1009 MB. SEE WINDS AND SEAS 
BELOW.

.48 HOURS FORECAST NEW TROUGH 08N173E 03N162E.

.WINDS 20 TO 25 KT E OF 165W BETWEEN 10N AND 20N.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 10N TO 18N E OF 
175W...AND
N OF 28N W OF 180W.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 10N BETWEEN 158W AND 
179E...AND
N OF 28N W OF 170E.

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 TO 9 FT FROM 12N TO 19N E OF 143W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 11N TO 17N E OF 146W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 12N TO 15N BETWEEN 142W AND 
147W.

.OTHERWISE...SEAS 8 FT OR LESS OVER ENTIRE FORECAST AREA.

.ITCZ 10N145W 08N158W...AND 08N172W 07N180W 08N170E. ISOLATED 
MODERATE
TSTMS WITHIN 150 NM OF ITCZ BETWEEN 150W AND 158W...AND WITHIN 
120NM OF
ITCZ BETWEEN 180W AND 172W.

.SCATTERED MODERATE TSTMS WITHIN 120 NM OF 25N180W.


$$

.FORECASTER M BALLARD. HONOLULU HI.