069
FZPN01 KWBC 042224
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT OCT 04 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 WILL BE LIMITED TO
WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 4 METERS OR
GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, VOLCANIC ASH,
AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER
CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO
PRESERVE CONTINUITY WHERE APPROPRIATE.

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 1800 UTC OCT 04.
24 HOUR FORECAST VALID 1800 UTC OCT 05.
48 HOUR FORECAST VALID 1800 UTC OCT 06.

.WARNINGS.

...GALE WARNING...
.LOW 61N179W 970 MB MOVING NW 05 KT THEN TURNING S AFTER 06
HOURS. N OF 52N W OF 164W WINDS 30 TO 45 KT. SEAS 3 TO 6
M...HIGHEST NEAR 57N176W. ELSEWHERE N OF 51N W OF 161W WINDS 20
TO 30 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 62N178W 984 MB. FROM 52N TO 63N W OF 164W
WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M...HIGHEST NEAR 56N179E.
 .48 HOUR FORECAST LOW N OF AREA. CONDITIONS DESCRIBED BY LOW
60N175E IN GALE WARNING BELOW.

...GALE WARNING...
.LOW 50N173W 999 MB MOVING NE 30 KT. FROM 39N TO 51N BETWEEN 170W
AND 171E WINDS 20 TO 30 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 37N TO
54N BETWEEN 164W AND 160E WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST LOW 56N164W 996 MB. WITHIN 480 NM S SEMICIRCLE
WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE FROM 37N TO 54N
BETWEEN 148W AND 177W WINDS 20 TO 30 KT. SEAS TO 4 M.
.48 HOUR FORECAST LOW 59N148W 1001 MB. FROM 52N TO 60N BETWEEN
141W AND 158W WINDS 25 TO 40 KT. SEAS 3 TO 6 M...HIGHEST S OF
CENTER. ELSEWHERE N OF 38N BETWEEN 136W AND 169W WINDS 20 TO 30
KT. SEAS 2.5 TO 5 M.

...GALE WARNING...
.LOW 57N158W 1003 MB MOVING NE 10 KT. FROM 49N TO 59N BETWEEN
143W AND 156W WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.06 HOUR FORECAST LOW 57N156W 1004 MB. WITHIN 60 NM N OF A LINE
FROM 58N153W TO 59N147W. WINDS 25 TO 35 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 59N153W 1003 MB. N OF A LINE FROM LOW
CENTER TO 60N146W TO 59N141W TO 57N136W WINDS 25 TO 35 KT. SEAS
2.5 TO 3.5 M. ELSEWHERE FROM 53N TO 58N BETWEEN 138W AND 151W
WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW DISSIPATED INLAND.

...GALE WARNING...
.12 HOUR FORECAST NEW LOW E OF AREA NEAR 52N159E 1001 MB. WITHIN
420 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 54N162E 989 MB. WITHIN 540 NM SE QUADRANT
WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. ELSEWHERE N OF 44N W OF 179E
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW NW OF AREA WITH MAIN CENTER 60N175E
981 MB. WITHIN 300 NM SE OF A LINE FROM 57N173E TO 54N176E TO
49N170E WINDS 35 TO 45 KT. SEAS 3.5 TO 6 M. ALSO FROM 47N TO 62N
W OF 156E WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M.

...GALE WARNING...
.42 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 45N163W 999 MB.
FROM 37N TO 47N W OF 175E WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 46N168E 994 MB.
WITHIN 300 NM NE...180 NM SE...AND 120 NM SW QUADRANTS WINDS 35
TO 45 KT. SEAS 2.5 TO 5 M. ELSEWHERE FROM 36N TO 48N W OF 176W
WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M.

.SYNOPSIS AND FORECAST.

.E OF A LINE FROM 40N126W TO 35N126W TO 31N121W AREA OF NW TO N
WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST FROM 30N TO 47N BETWEEN 119W AND 133W AREA OF N
WINDS 20 TO 30 KT. SEAS TO 3 M.
.48 HOUR FORECAST FROM 33N TO 43N BETWEEN 126W AND 136W AREA OF N
TO NE WINDS TO 25 KT. SEAS TO 3 M.

.COMPLEX LOW WITH MAIN CENTER 47N160W 1010 MB MOVING N 15 KT. S
OF 48N BETWEEN 148W AND 172W WINDS TO 25 KT. SEAS 2.5 TO 4
M...HIGHEST S OF LOW.
.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS
DIMINISHED.

.LOW 44N128W 1020 MB MOVING S 15 KT. FROM 47N TO 53N BETWEEN 127W
AND 133W AREA OF N TO NW WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW DISSIPATED. ASSOCIATED CONDITIONS
DIMINISHED.

.24 HOUR FORECAST WITHIN 90 NM N OF A LINE FROM 32N164W TO
34N178W TO 36N169W AREA OF E TO NE WINDS TO 25 KT. SEAS TO 2.5 M.

.48 HOUR FORECAST FROM 33N TO 45N BETWEEN 148W AND 175W WINDS TO
25 KT. SEAS 2.5 TO 3.5 M.

.ERUPTIVE ACTIVITY HAS BEEN DETECTED AT THE SHEVELUCH VOLCANO
WHICH IS LOCATED NEAR 56.39N 161.22E. TRACE AMOUNTS OF ASHFALL
ARE POSSIBLE IN THE MARINE AREAS NEAR THE VOLCANO. PLEASE REPORT
ANY OBSERVATIONS OF VOLCANIC ASH OR FLOATING VOLCANIC DEBRIS TO
THE OCEAN PREDICTION CENTER BY CALLING 301-683-1520.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 57N
BETWEEN 147W AND 160W.
.24 HOUR FORECAST DENSE FOG FROM 47N TO 59N BETWEEN 137W AND
152W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.FORECASTER HYDE. 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 SAT OCT 04.
24 HOUR FORECAST VALID 1800 UTC SUN OCT 05.
48 HOUR FORECAST VALID 1800 UTC MON OCT 06.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM PRISCILLA NEAR 15.5N 106.6W 1002 MB AT 2100 UTC
OCT
04 MOVING NW OR 315 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 40 KT
GUSTS
50 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM S SEMICIRCLE...120
NM
NE QUADRANT AND 90 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90
NM
N SEMICIRCLE...60 NM SE QUADRANT AND 0 NM SW QUADRANT WITH SEAS
TO
4.5 M. ELSEWHERE WITHIN 120 NM OF CENTER...EXCEPT 150 NM NE
QUADRANT
WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER OF THE AREA FROM 10N
TO
13N BETWEEN 102W AND 109W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO
3
FT.
.24 HOUR FORECAST TROPICAL STORM PRISCILLA NEAR 16.3N 106.9W.
MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE
WINDS WITHIN 100 NM S SEMICIRCLE...200 NM NE QUADRANT AND 150 NM
NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM S AND 150 NM N
SEMICIRCLES WITH SEAS TO 5 M. ELSEWHERE WITHIN 180 NM OF
CENTER...
EXCEPT 240 NM NE QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 M.
REMAINDER OF THE AREA FROM 10N TO 14N BETWEEN 101W AND 112W SW TO
W
WINDS 20 TO 25 KT. SEAS 2.5 TO 3 FT.
.36 HOUR FORECAST HURRICANE PRISCILLA NEAR 17.0N 107.3W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT.
.48 HOUR FORECAST HURRICANE PRISCILLA NEAR 17.8N 108.2W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN
120 NM S SEMICIRCLE...200 NM NE QUADRANT AND 160 NM NW QUADRANT.
SEAS 4 M OR GREATER WITHIN 150 NM S AND 180 NM N SEMICIRCLES WITH

SEAS TO 6 M. ELSEWHERE WITHIN 180 NM OF CENTER...EXCEPT 240 NM NE

QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 4 M. REMAINDER OF THE AREA
FROM 10N TO 20N BETWEEN 100W AND 112W SW TO W WINDS 20 TO 25 KT.
SEAS 2.5 TO 3 FT.

...TROPICAL STORM WARNING...
.TROPICAL STORM OCTAVE NEAR 14.9N 123.9W 997 MB AT 2100 UTC OCT
04
MOVING NNW OR 330 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS
65 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM NW AND SE
QUADRANTS...70 NM NE QUADRANT AND 30 NM SW QUADRANT. SEAS 4 M OR
GREATER WITHIN 90 NM N SEMICIRCLE...75 NM SE QUADRANT AND 60 NM
SW
QUADRANT WITH SEAS TO TO 6 M. ELSEWHERE WITHIN 120 NM OF
CENTER...
EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 5 FT.
REMAINDER OF THE AREA FROM 10N TO 20N BETWEEN 116W AND 128W WINDS
20
KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 15.7N 123.6W.
MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE
WINDS WITHIN 70 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW
QUADRANT...AND 50 NM NW QUADRANT. SEAS 4 M OR GREATER WITHIN 90
NM
OF CENTER...EXCEPT 60 NM SW QUADRANT WITH SEAS TO 6 M. ELSEWHERE
WITHIN 120 NM OF CENTER...EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33

KT. SEAS 3 TO 5 FT. REMAINDER OF THE AREA FROM 12N TO 19N BETWEEN

121W AND 129W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN MIXED
SWELL.
.48 HOUR FORECAST TROPICAL STORM OCTAVE NEAR 16.0N 121.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 30 NM S SEMICIRCLE...50 NM NE QUADRANT AND 40 NM NW
QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM OF CENTER...EXCEPT 60
NM
SW QUADRANT WITH SEAS TO 5 M. ELSEWHERE WITHIN 120 NM OF
CENTER...
EXCEPT 90 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 3 TO 5 FT.
REMAINDER OF THE AREA FROM 14N TO 18N BETWEEN 121W AND 126W WINDS
20
KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL.

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.

.N OF 20N W OF 130W...AND FROM 20N TO 25N BETWEEN 115W AND 130W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.12 HOUR FORECAST 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 2100 UTC SAT OCT 4...

.TROPICAL STORM OCTAVE...NUMEROUS MODERATE TO STRONG WITHIN 90
NM W SEMICIRCLE.

.TROPICAL STORM PRISCILLA...NUMEROUS MODERATE TO SCATTERED STRONG

FROM 14N TO 19N BETWEEN 102W AND 111W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS FROM 10N85W TO 14N103W, THEN RESUMES
SW
OF OCTAVE FROM 11N129W TO 09N140W. ASIDE FROM THE CONVECTION
ASSOCIATED WITH TROPICAL STORMS OCTAVE AND PRISCILLA...SCATTERED
MODERATE TO ISOLATED STRONG CONVECTION IS NOTED FROM 05N TO 15N
BETWEEN 83W AND 100W.

.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$