859
FZPN01 KWBC 181531
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI APR 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 APR 18.
24 HOUR FORECAST VALID 1200 UTC APR 19.
48 HOUR FORECAST VALID 1200 UTC APR 20.

.WARNINGS.

...GALE WARNING...
.LOW 57N172E 999 MB MOVING N 10 KT. WITHIN 240 NM S AND SE OF A
LINE FROM 52N160W TO 52N166W TO 49N172W TO 44N176W WINDS 25 TO
35 KT. SEAS 8 TO 14 FT. ELSEWHERE WITHIN 360 NM S AND SE OF A
LINE FROM 53N158W TO 52N169W TO 47N175W TO 39N176E WINDS 20 TO
30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW MOVED NW OF AREA. FROM 47N TO 53N BETWEEN
135W AND 160W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 47N TO 52N BETWEEN 125W AND 131W WINDS TO
25 KT. SEAS TO 9 FT.

...GALE WARNING...
.LOW 50N167E 998 MB MOVING E 20 KT. FROM 38N TO 42N BETWEEN 163E
AND 169E WINDS 25 TO 35 KT. SEAS 10 TO 14 FT. ELSEWHERE FROM 36N
TO 47N W OF 174E WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 49N179E 999 MB. WITHIN 180 NM S
SEMICIRCLE...AND FROM 44N TO 50N BETWEEN 166W AND 175W WINDS 25
TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE WITHIN AN AREA BOUNDED BY
51N160W...40N175W...45N173E...50N178E...52N175W...51N160W WINDS
20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 54N170W 1006 MB. WITHIN 240 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 11 TO 15 FT. ELSEWHERE WITHIN 300 NM S
AND SE SEMICIRCLES...AND FROM 47N TO 56N BETWEEN 156W AND 165W
WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.FROM 36N TO 45N BETWEEN 124W AND 132W WINDS 20 TO 30 KT. SEAS
TO 9 FT.
.24 HOUR FORECAST FROM 36N TO 50N BETWEEN 124W AND 133W WINDS 25
TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST FROM 36N TO 42N BETWEEN 124W AND 130W WINDS 25
TO 35 KT. SEAS 9 TO 13 FT.

...GALE WARNING...
.LOW 59N149W 1002 MB MOVING E 20 KT. FROM 52N TO 59N BETWEEN
144W AND 155W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM
48N TO 59N BETWEEN 140W AND 156W WINDS 20 TO 30 KT. SEAS TO 12
FT.
.24 HOUR FORECAST LOW 58N137W 1016 MB. FORECAST CONDITIONS
DESCRIBED WITH FIRST GALE WARNING.
.48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST.

.WITHIN AN AREA BOUNDED BY 38N145W...30N158W...30N170W...39N150W
...38N145W WINDS 20 TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.48 HOUR FORECAST LOW 55N170E 1001 MB. WITHIN 420 NM SE AND 180
NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 56N TO 61N
BETWEEN 143W AND 148W...ALSO 45N TO 50N BETWEEN 173W AND 177W.
.24 HOUR FORECAST DENSE FOG FROM 51N TO 53N BETWEEN 160W AND
173W...AND FROM 47N TO 52N BETWEEN 171W AND 174W.
.48 HOUR FORECAST DENSE FOG N OF 58N BETWEEN 172W AND 176W.

.LIGHT FREEZING SPRAY N OF 58N BETWEEN 160W AND 166W.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.FORECASTER SHAW. 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 FRI APR 18.
24 HOUR FORECAST VALID 1200 UTC SAT APR 19.
48 HOUR FORECAST VALID 1200 UTC SUN APR 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 11N86W TO 12N86W TO 12N88W TO 11N90W TO 09N89W TO 09N87W
TO 11N86W...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO
30 KT. SEAS 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE...EXCEPT SEAS LESS THAN 8 FT.

.WITHIN 12N125W TO 13N133W TO 17N140W TO 06N140W TO 07N123W TO
12N125W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.24 HOUR FORECAST WITHIN 16N125W TO 19N140W TO 05N140W TO
11N129W TO 10N118W TO 16N125W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT
IN NE TO E SWELL.
.48 HOUR FORECAST WITHIN 11N116W TO 21N140W TO 04N140W TO
09N117W TO 11N116W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE TO E
SWELL.

.WITHIN 01S111W TO 00N115W TO 00N120W TO 03.4S120W TO 03.4S112W
TO 01S111W WINDS 20 KT OR LESS. SEAS 8 FT IN SE SWELL.
.24 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 1500 UTC FRI APR 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N78W TO 05N98W...ITCZ FROM 05N98W TO BEYOND
04N140W. SECOND ITCZ FROM 02S115W TO BEYOND 07S140W. SCATTERED
MODERATE ISOLATED STRONG S OF 07N E OF 85W...FROM 03N TO 11N
BETWEEN
105W AND 137W.

$$
.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.