748
FZPN01 KWBC 091016
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC THU OCT 09 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC OCT 09.
24 HOUR FORECAST VALID 0600 UTC OCT 10.
48 HOUR FORECAST VALID 0600 UTC OCT 11.

.WARNINGS.

...TROPICAL STORM WARNING...
...HURRICANE FORCE WIND WARNING....
.24 HOUR FORECAST TYPHOON HALONG W OF AREA NEAR 34.8N 157.7W.
MAXIMUM SUSTAINED WINS 65 KT GUSTS 80 KT. TROPICAL STORM
FORECAST WINDS WITHIN 140 NM NE QUADRANT...AND 150 NM SE
QUADRANT. SEAS 4 M OR GREATER WITHIN 120 NM E SEMICIRCLE.
ELSEWHERE S OF 38N W OF 166E WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.
.42 HOUR FORECAST POST TROPICAL CYCLONE HALONG NEAR 37N169E 965
MB. WITHIN 120 NM W SEMICIRCLE AND 120 NM S QUADRANT WINDS 55 TO
70 KT. SEAS 6 TO 10 M.
.48 HOUR FORECAST LOW 40N175E 967 MB. WITHIN 120 NM S QUADRANT
AND 120 NM W SEMICIRCLE WINDS 50 TO 70 KT. SEAS 6 TO 12 M.
ELSEWHERE WITHIN 300 NM S AND 240 NM N SEMICIRCLE WINDS 35 TO 40
KT. SEAS 5 TO 10 M. ELSEWHERE S OF 45N W OF 171W 25 TO 35 KT.
SEAS 2.5 TO 6 M.

...STORM WARNING...
.LOW W OF AREA 50N158E 972 MB MOVING E 10 KT. WITHIN 180 NM E
AND NE OF A LINE FRO 42N167E TO 48N167E TO 51N163W...AND FROM
42N TO 46N W OF 163E WINDS 40 TO 55 KT. SEAS 4.5 TO 7 M.
ELSEWHERE FROM 37N TO 54N W OF 176E WINDS 25 TO 40 KT. SEAS 3 TO
5.5 M. ELSEWHERE FROM 34N TO 55N W OF 178E WINDS TO 25 KT. SEAS
2.5 TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN LOW 51N166E 959 MB. FROM
45N TO 51N W OF 176E...AND WITHIN 300 NM NE OF A LINE FROM
53N179W TO 56N173E WINDS 35 TO 50 KT. SEAS 6 TO 11 M...HIGHEST
NEAR 48N166E. ELSEWHERE WITHIN 600 NM S AND 840 NM N SEMICIRCLES
WINDS 25 TO 40 KT. SEAS 4 TO 8 M...HIGHEST S OF LOW. ELSEWHERE
WITHIN 900 NM OF CENTER WINDS TO 25 KT. SEAS 2.5 TO 6 M.
.48 HOUR FORECAST LOW 54N168E 967 MB. WITHIN 300 NM SE AND 840
NM SW QUADRANTS...AND FROM 62N64N W OF ALASKA WINDS 35 TO 45 KT.
SEAS 4.5 TO 8 M. ELSEWHERE N OF 45N W OF 158W WINDS 25 TO 35 KT.
SEAS 2.5 TO 6 M.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER 42N172W 1013 MB. FROM 35N TO 46N
BETWEEN 169W AND 178W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M.
ELSEWHERE FROM 32N TO 52N BETWEEN 165W AND 178E WINDS TO 25 KT.
SEAS 2.5 TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.18 HOUR FORECAST FROM 58N TO 60N BETWEEN 146W AND 154W WINDS 25
TO 35 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST NEW LOW 60N145W 1013 MB. FROM 57N TO 60N W OF
143W WINDS 25 TO 35 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE N OF 53N
BETWEEN 136W AND 150W WINDS LESS THAN 25 KT. SEAS TO 3 M.
.48 HOUR FORECAST LOW DISSIPATED FROM 46N TO 58N E OF 144W WINDS
20 TO 30 KT. SEAS TO 4 M.

.SYNOPSIS AND FORECAST.

.LOW COMPLEX LOW WITH MAIN CENTER 45N126W 1007 MB DRIFTING SW 10
KT. FROM 38N TO 53N E OF 145W WINDS 20 TO 30 KT. SEAS TO 4 M.
.24 HOUR FORECAST LOW 43N130W 1007 MB. FROM 36N TO 53N BETWEEN
126W AND 148W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST LOW DISSIPATED. FROM 33N TO 46N BETWEEN 126W
AND 141W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.

.COMPLEX LOW WITH FIRST CENTER 33N161W 1013 MB DRIFTING NE 05 KT
AND SECOND CENTER 32N155W 1014 MB MOVING NW 10 KT. FROM 31N TO
43N BETWEEN 144W AND 166W WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST LOW 36N162W 1011 MB. FROM 34N TO 47N BETWEEN
150W AND 175W WIND TO 25 KT. SEAS TO 4 M...HIGHEST NEAR 38N158W.
.48 HOUR FORECAST LOW 37N156W 1018 MB. FROM 35N TO 43N BETWEEN
146W AND 161W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M.

FROM 50N TO 59N BETWEEN 140W AND 166W...EXCEPT WITH THE BERING
SEA...WINDS TO 25 KT. SEAS 2.5 TO 4.5 M.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW WELL N OF AREA. N OF THE ALEUTIAN ISLANDS BETWEEN 164W AND
176E WINDS TO 25 KT. SEAS 2.5 TO 3 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED WELL NE OF
AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM N OF 42N BETWEEN
171E AND 166E.
.24 HOUR FORECAST DENSE FOG FROM 49N TO 54N BETWEEN 169W AND
176W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 58N BETWEEN 166W AND
176W.

.FORECASTER POCHE. 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 OCT 9.
24 HOUR FORECAST VALID 0600 UTC FRI OCT 10.
48 HOUR FORECAST VALID 0600 UTC SAT OCT 11.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM PRISCILLA NEAR 23.3N 114.1W 994 MB AT 0900 UTC
OCT 09 MOVING NW OR 320 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 45
KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM OF
CENTER EXCEPT 140 NM NE QUADRANT. SEAS 4 M OR GREATER WITHIN 210
NM S SEMICIRCLE...175 NM NE QUADRANT AND 240 NM NW QUADRANT WITH
SEAS TO 8 M. ELSEWHERE WITHIN 24N111W TO 26N113W TO 25N118W TO
21N117W TO 20N115W TO 22N112W TO 24N111W WINDS 20 TO 33 KT. SEAS
4 TO 6 M. REMAINDER OF AREA WITHIN 24N108W TO 28N121W TO 22N123W
TO 10N116W TO 13N106W TO 12N96W TO 24N108W WINDS 20 KT OR LESS.
SEAS 2.5 TO 4.5 M IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL PRISCILLA NEAR 25.5N 115.1W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM NW AND SE QUADRANTS...50 NM NE QUADRANT AND 0
NM SW QUADRANT. SEAS 4 M OR GREATER WITHIN 90 NM N SEMICIRCLE
WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 27N114W TO 27N116W TO
26N118W TO 25N119W TO 24N117W TO 24N115W TO 27N114W WINDS 20 TO
33 KT. SEAS 3.0 TO 4.0 M. REMAINDER OF AREA WITHIN 26N113W TO
29N117W TO 24N121W TO 17N117W TO 12N113W TO 17N111W TO 26N113W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW PRISCILLA NEAR 26.4N
115.2W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW PRISCILLA NEAR 27.0N
114.9W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN
26N117W TO 25N118W TO 24N118W TO 25N117W TO 26N117W WINDS 20 TO
25 KT. SEAS TO 2.5 M.

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

...TROPICAL STORM WARNING...
.TROPICAL STORM OCTAVE NEAR 16.9N 111.7W 1004 MB AT 0900 UTC OCT
09 MOVING ENE OR 065 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 35 KT
GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM N SEMICIRCLE
AND 40 NM S SEMICIRCLE. SEAS 4 M OR GREATER WITHIN 45 NM NE
QUADRANT...75 NM SE QUADRANT...60 NM SW QUADRANT...AND 30 NM NW
QUADRANT WITH SEAS TO 4.5 M. ELSEWHERE WITHIN 18N112W TO 17N114W
TO 16N114W TO 15N113W TO 15N112W TO 16N111W TO 18N112W WINDS 20
TO 33 KT. SEAS 2.5 TO 4.0 M.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW OCTAVE NEAR 17.4N
109.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.24 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 15N99W 1005 MB. WITHIN 16N98W TO 16N100W TO
15N101W TO 14N99W TO 14N97W TO 16N98W WINDS 20 KT OR LESS. SEAS
2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17N104W 1002 MB. WITHIN 17N102W TO 18N104W TO 17N105W TO 15N105W
TO 15N103W TO 15N102W TO 17N102W WINDS 20 TO 30 KT. SEAS TO 3.0
M. ELSEWHERE WITHIN 18N102W TO 18N110W TO 12N114W TO 09N112W TO
11N104W TO 09N96W TO 18N102W WINDS 20 KT OR LESS. SEAS 2.5 TO
3.0 M IN MIXED SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
20N109W 997 MB. WITHIN 22N108W TO 21N110W TO 20N110W TO 19N110W
TO 19N109W TO 20N107W TO 22N108W WINDS 20 TO 30 KT. SEAS 3.0 TO
4.5 M. ELSEWHERE WITHIN 21N107W TO 21N108W TO 20N107W TO 20N108W
TO 20N107W TO 21N107W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.5 M IN
MIXED SWELL.

.WITHIN 12N125W TO 13N128W TO 09N134W TO 06N135W TO 06N132W TO
07N127W TO 12N125W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN SE
SWELL.
.24 HOUR FORECAST WITHIN 13N124W TO 14N125W TO 14N126W TO
12N127W TO 09N127W TO 11N124W TO 13N124W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN NE SWELL.
.42 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 04N82W TO 08N106W TO 03N106W TO 00N122W TO 03.4S120W TO
03.4S88W TO 04N82W...EXCEPT LEE OF GALAPAGOS ISLANDS...WINDS 20
KT OR LESS. SEAS TO 2.5 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 00N111W TO 02N119W TO 00N123W TO
03.4S120W TO 03.4S107W TO 00N111W WINDS 20 KT OR LESS. SEAS 2.5
TO 3.0 M IN S SWELL.
.48 HOUR FORECAST WITHIN 06N99W TO 07N105W TO 02N113W TO
03.4S116W TO 03.4S102W TO 00N103W TO 06N99W WINDS 20 KT OR LESS.
SEAS 2.5 TO 3.0 M IN SW SWELL.

.48 HOUR FORECAST WITHIN 30N117W TO 30N122W TO 27N122W TO
27N121W TO 28N117W TO 30N117W WINDS 20 KT OR LESS. SEAS TO 2.5 M
IN NW TO N SWELL.

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

CONVECTION VALID AT 0900 UTC THU OCT 9...

.T.S. PRISCILLA...SCATTERED MODERATE WITHIN 200 NM N AND S OF
THE CENTER.

.T.S. OCTAVE...SCATTERED MODERATE ISOLATED STRONG WITHIN 210 NM
W QUADRANT.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 11N85W TO 1005 MB LOW PRES (EP90) NEAR
15N99W TO 15N101W...FROM 12N120W TO BEYOND 10N140W. SCATTERED
MODERATE CONVECTION N OF 03N AND E OF 95W...FROM 05N TO 10N AND
W OF 133W.

$$
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.