FZPN01 KWBC 171613
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC WED SEP 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 1200 UTC SEP 17.
24 HOUR FORECAST VALID 1200 UTC SEP 18.
48 HOUR FORECAST VALID 1200 UTC SEP 19.

.WARNINGS.

...STORM WARNING...
.LOW 56N137W 980 MB MOVING NW 20 KT. WITHIN 180 NM SE SEMICIRCLE
AND 90 NM NE QUADRANT WINDS 40 TO 55 KT. SEAS 5 TO 7 M. ALSO
WITHIN 300 NM S AND E SEMICIRCLES AND 120 NM NW QUADRANT WINDS
25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM 49N TO 59N BETWEEN
129W AND 145W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. OTHERWISE N
OF 36N BETWEEN 127W AND 144W WINDS TO 25 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW DISSIPATED INLAND. N OF 45N BETWEEN 133W
AND 145W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M.
.48 HOUR FORECAST CONDITIONS AS DESCRIBED WITH LOW 59N148W
BELOW.

...GALE WARNING...
.LOW 53N173E 982 MB MOVING E 15 KT. WITHIN 360 NM N AND 300 NM W
QUADRANTS WINDS 25 TO 40 KT. SEAS 4 TO 7 M. ELSEWHERE BETWEEN
61N AND A LINE FROM 42N160E TO 44N177E TO 52N170W WINDS 20 TO 30
KT. SEAS 2.5 TO 4 M.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 53N178W 989 MB
AND SECOND CENTER 56N175W 989 MB. WITHIN 420 NM SE AND 300 NM SW
QUADRANTS OF MAIN CENTER AND WITHIN 540 NM NW SEMICIRCLE OF
SECOND CENTER WINDS 20 TO 30 KT. SEAS TO 4 M...HIGHEST NEAR
50N180W AND 55N174E.
.48 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER NEAR 57N160W 989
MB AND SECOND CENTER NEAR 57N170W 991 MB. WITHIN 480 NM NW AND W
AND 600 NM S QUADRANTS OF SECOND CENTER WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M... HIGHEST NEAR 49N170W. ELSEWHERE WITHIN 360 NM S
AND SE AND 180 NM N QUADRANTS OF FIRST CENTER WINDS TO 25 KT.
SEAS TO 3.5 M...HIGHEST S QUADRANT OF FIRST CENTER.

...GALE WARNING...
.LOW 53N157W 997 MB MOVING E 25 KT AND DISSIPATING. WITHIN 360
NM SE OF A FRONT FROM 50N150W TO 46N155W WINDS 25 TO 35 KT. SEAS
2.5 TO 4 M. ELSEWHERE WITHIN 300 NM S AND SE QUADRANTS AND FROM
42N TO 53N BETWEEN 144W AND 160W WINDS TO 25 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS AS DESCRIBED
WITH STORM WARNING ABOVE.

...GALE WARNING...
.LOW 44N174W 1004 MB MOVING NE 40 KT. WITHIN 420 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M. ELSEWHERE WITHIN 660 NM
E...540 NM S AND 420 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 3
M.
.24 HOUR FORECAST LOW 54N153W 996 MB. WITHIN 360 NM E OF A FRONT
FROM 51N152W TO 42N163W WINDS 25 TO 35 KT. SEAS 3 TO 5 M.
ELSEWHERE FROM 39N TO 54N BETWEEN 144W AND 165W WINDS TO 25 KT.
SEAS TO 3 M.
.48 HOUR FORECAST LOW 59N148W 992 MB. WITHIN 120 NM NE OF A
FRONT FROM LOW CENTER TO 58N142W TO 54N135W WINDS 25 TO 35 KT.
SEAS 2.5 TO 4 M. ELSEWHERE N OF A LINE FROM 40N148W TO 50N131W
WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M...HIGHEST NEAR 48N144W.

...GALE WARNING...
.12 HOUR FORECAST LOW 46N165E 1000 MB. FROM 39N TO 47N W OF 171E
WINDS 20 TO 30 KT. SEAS TO 3 M.
.24 HOUR FORECAST LOW 46N178E 999 MB. FROM 42N TO 46N BETWEEN
178W AND 176E WINDS 25 TO 35 KT. SEAS 3 TO 4 M. ELSEWHERE FROM
40N TO 47N BETWEEN 166W AND 170E WINDS 20 TO 30 KT. SEAS 2.5 TO
3.5 M.
.48 HOUR FORECAST LOW 50N158W 996 MB. FROM 44N TO 49N BETWEEN
147W AND 161W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE
EXCEPT WHERE PREVIOUSLY NOTED WITHIN 600 NM S AND SW AND 420 NM
E QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M.

...GALE WARNING...
.18 HOUR FORECAST FROM 40N TO 43N BETWEEN 124W AND 126W AREA OF
N TO NW WINDS 25 TO 35 KT. SEAS 3 TO 4 M.
.24 HOUR FORECAST FROM 38N TO 43N BETWEEN 124W AND 128W AREA OF
N TO NW WINDS 25 TO 35 KT. SEAS 3.5 TO 4.5 M. ELSEWHERE BETWEEN
123W AND A LINE FROM 49N126W TO 30N145W WINDS 20 TO 30 KT. SEAS
2.5 TO 4 M.
.48 HOUR FORECAST WITHIN 360 NM E AND SE OF A LINE FROM 45N128W
TO 37N133W TO 30N148W AREA OF N TO NE WINDS TO 25 KT. SEAS 2.5
TO 4 M.

.SYNOPSIS AND FORECAST.

.FROM 30N TO 34N BETWEEN 138W AND 166W AREA OF E TO NE WINDS TO
25 KT. SEAS TO 3 M.
.24 HOUR FORECAST FROM 30N TO 33N BETWEEN 145W AND 156W AREA OF
E TO NE WINDS TO 25 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST CONDITIONS AS DESCRIBED WITH FIFTH GALE
WARNING ABOVE.

.48 HOUR FORECAST NEW LOW NEAR 44N174E 1008 MB. FROM 37N TO 44N
W OF 177W WINDS TO 25 KT. SEAS TO 2.5 M.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM SE OF
A LINE FROM 47N167W TO 44N178W...AND FROM 51N TO 55N BETWEEN
177W AND 179E.
.24 HOUR FORECAST DENSE FOG WITHIN 300 NM SE OF A LINE FROM
54N152W TO 45N165W.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
52N142W TO 46N154W.

.FORECASTER BANCROFT. 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 1200 UTC WED SEP 17.
24 HOUR FORECAST VALID 1200 UTC THU SEP 18.
48 HOUR FORECAST VALID 1200 UTC FRI SEP 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW PRES...INVEST EP96...NEAR 13N105.5W 1007 MB. WITHIN 16N102W
TO 17N105W TO 13N109W TO 11N109W TO 11N104W TO 11N103W TO
16N102W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN
12N95W TO 16N102W TO 13N106W TO 10N124W TO 05N102W TO 05N94W TO
12N95W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.24 HOUR FORECAST LOW PRES...INVEST EP96...POSSIBLE TROPICAL
CYCLONE...NEAR 15.5N110W 1006 MB. WITHIN 14N105W TO 15N112W TO
12N110W TO 10N110W TO 09N108W TO 11N106W TO 14N105W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N103W TO 16N106W TO
12N106W TO 10N110W TO 08N108W TO 09N105W TO 14N103W WINDS 20 KT
OR LESS. SEAS 2.5 TO 3.0 M IN S TO SW SWELL.
.48 HOUR FORECAST LOW PRES...INVEST EP96...POSSIBLE TROPICAL
CYCLONE...NEAR 17N114W 1005 MB. WITHIN 16N109W TO 17N111W TO
17N116W TO 15N116W TO 14N113W TO 14N110W TO 16N109W WINDS 20 TO
30 KT. SEAS 2.5 TO 3.5 M.

.WITHIN 15N94W TO 16N94W TO 16N95W TO 15N96W TO 14N96W TO 14N95W
TO 15N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 25 KT. SEAS TO 2.5 M.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.WITHIN 07N79W TO 06N83W TO 04N85W TO 01N84W TO 01N83W TO 03N80W
TO 07N79W...INCLUDING NEAR THE GULF OF PANAMA...WINDS 20 KT OR
LESS. SEAS 2.5 M IN S TO SW SWELL.
.24 HOUR FORECAST WITHIN 05N80W TO 06N81W TO 06N83W TO 05N84W TO
04N82W TO 04N81W TO 05N80W...INCLUDING NEAR THE AZUERO
PENINSULA...WINDS 20 KT OR LESS. SEAS 2.5 M IN S TO SW SWELL.
.30 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 2.5 M.

.18 HOUR FORECAST WEAK COLD FRONT FROM 30N135.5W TO 27.5N140W.
WITHIN 30N137W TO 30N140W TO 28N140W TO 29N138W TO 30N137W WINDS
20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WEAK STATIONARY FRONT FROM 30N130.5W TO
25.5N140W. WITHIN 30N127W TO 30N140W TO 27N140W TO 27N134W TO
30N127W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN MIXED NE AND
NW SWELL.

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

CONVECTION VALID AT 1600 UTC WED SEP 17...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N77.5W TO LOW PRES...INVEST EP96...NEAR
13N105.5W TO 10N140W. SCATTERED TO NUMEROUS MODERATE ISOLATED
STRONG WITHIN 360 NM SW OF MONSOON TROUGH BETWEEN 77W AND
100W...
AND WITHIN 240 NM N OF MONSOON TROUGH BETWEEN 86W AND 103W.
SIMILAR CONVECTION FROM 09N TO 18N BETWEEN 103W AND 115W.
SCATTERED MODERATE FROM 10N TO 12N BETWEEN 116W AND 120.5W.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.