High Seas Forecast
Issued by NWS

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109
FZPN01 KWBC 061100 CCA
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN APR 06 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 06.
24 HOUR FORECAST VALID 0600 UTC APR 07.
48 HOUR FORECAST VALID 0600 UTC APR 08.

.WARNINGS.

...STORM WARNING...
.36 HOUR FORECAST LOW W OF AREA 37N156E 996 MB. FROM 31N TO 41N
W OF 167E WINDS 25 TO 40 KT. SEAS 8 TO 17 FT...HIGHEST NEAR
38N160E.
.48 HOUR FORECAST LOW W OF AREA 42N156E 982 MB. FROM 42N TO 45N
W OF 164E WINDS 35 TO 50 KT. SEAS 10 TO 21 FT...HIGHEST NEAR
43N160E. ELSEWHERE WITHIN 360 NM NE...540 NM E AND 420 NM S
QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 16 FT. ALSO S OF A LINE
FROM 50N160E TO 43N173E WINDS 20 TO 30 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 51N150W 987 MB MOVING NE 15 KT. FROM 43N TO 51N BETWEEN
138W AND 144W...BETWEEN 180 NM AND 720 NM W AND WITHIN 540 NM S
QUADRANTS WINDS 25 TO 35 KT. SEAS 11 TO 22 FT...HIGHEST NEAR
43N153W. ELSEWHERE S OF 50N BETWEEN 128W AND 167W WINDS TO 25
KT. SEAS 8 TO 19 FT IN MIXED SWELL.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER NEAR 52N142W 993
MB AND A NEW SECOND CENTER 59N146W 991 MB. WITHIN 180 NM NE AND
420 NM E QUADRANTS OF SECOND CENTER WINDS 25 TO 40 KT. SEAS 9 TO
18 FT. ELSEWHERE E OF A LINE FROM 60N148W TO 48N130W AND FROM
41N TO 51N BETWEEN 130W AND 157W WINDS 20 TO 30 KT. SEAS 8 TO 18
FT...HIGHEST NEAR 43N145W.
.48 HOUR FORECAST COMBINED LOW 58N145W 988 MB. WITHIN 360 NM NE
SEMICIRCLE AND 300 NM W QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 11
FT.

...GALE WARNING...
.LOW 55N151W 986 MB MOVING E 05 KT. WITHIN 120 NM NE SEMICIRCLE
AND NE OF A LINE FROM 60N148W TO 50N130W WINDS 25 TO 40 KT. SEAS
9 TO 16 FT.
.24 HOUR FORECAST LOW 55N148W 990 MB. BETWEEN 120 NM AND 420 NM
W QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW 55N144W 988 MB. WITHIN 360 NM W...300 NM
SW AND 180 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 17 FT...
HIGHEST S QUADRANT.

...GALE WARNING...
.COMPLEX LOW WITH MAIN CENTER NEAR 51N175E 998 MB NEARLY
STATIONRY AND A SECOND CENTER 49N178E 1002 MB MOVING NW 10 KT.
FRONT EXTENDS FROM MAIN CENTER TO SECOND CENTER TO 46N176W TO
39N180W. FROM 40N TO 48N W OF 178E AND WITHIN 240 NM NE AND E OF
FRONT WINDS 25 TO 40 KT. SEAS 9 TO 20 FT...HIGHEST NEAR 44N163E.
ELSEWHERE W OF A LINE FROM 57N174E TO 43N168W TO 36N165W TO
30N166E WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST COMBINED LOW 52N174E 1007 MB. FROM 41N TO 49N
BETWEEN 165E AND 178W...ALSO N OF 49N BETWEEN 160E AND 165E
WINDS 25 TO 35 KT. SEAS 9 TO 19 FT. ELSEWHERE WITHIN 720 NM SW
QUADRANT AND FROM 37N TO 49N BETWEEN 165W AND 174E AND WITHIN
300 NM N SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 14 FT...EXCEPT
N OF 51N SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED WITH NEW LOW TO FORM NEAR
46N161W 1010 MB. FROM 37N TO 47N BETWEEN 140W AND 161W AND
WITHIN 600 NM W AND 660 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS
8 TO 14 FT.

...GALE WARNING...
.LOW 39N148W 1016 MB MOVING E 35 KT THEN TURNING NE IN 12 HOURS.
FROM 35N TO 39N BETWEEN 144W AND 155W WINDS 25 TO 35 KT. SEAS 15
TO 21 FT. ELSEWHERE S OF 41N BETWEEN 130W AND 170W WINDS TO 25
KT. SEAS 9 TO 22 FT IN MIXED SWELL.
.24 HOUR FORECAST LOW 41N132W 1010 MB. FROM 38N TO 41N BETWEEN
130W AND 136W WINDS 25 TO 35 KT. SEAS 12 TO 17 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS DESCRIBED
WITH LOW 43N133W BELOW.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 43N152W 1009 MB. WITHIN 360 NM S OF A
LINE FROM 43N147W TO LOW CENTER TO 47N168W WINDS 25 TO 35 KT.
SEAS 9 TO 17 FT. ELSEWHERE EXCEPT WHERE PREVIOUSLY NOTED WITHIN
660 NM S AND SW SEMCIRCLES WINDS TO 25 KT. SEAS 8 TO 16 FT IN
MIXED SWELL.
.48 HOUR FORECAST LOW 43N133W 1008 MB. FROM 35N TO 51N E OF 140W
WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY N OF A LINE FROM 58N161W TO
57N168W TO 61N178W.
.12 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 58N
BETWEEN 161W AND 167W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF 58N
BETWEEN 161W AND 166W. ELSEWHERE LIGHT TO MODERATE FREEZING
SPRAY N OF A LINE FROM 57N159W TO 56N165W TO 57N172W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 57N165W TO 59N180W.

.SYNOPSIS AND FORECAST.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM E OF
A LINE FROM 44N127W TO 35N132W...AND WITHIN 120 NM N OF A LINE
FROM 47N175W TO 52N167E.
.24 HOUR FORECAST DENSE FOG FROM 36N TO 41N E OF 125W...N OF 59N
E OF 148W AND FROM 49N TO 52N BETWEEN 170W AND 180W.
.48 HOUR FORECAST DENSE FOG N OF 56N BETWEEN 160W AND 167W AND
FROM 53N TO 58N BETWEEN 142W AND 147W.

.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 0600 UTC SUN APR 6.
24 HOUR FORECAST VALID 0600 UTC MON APR 7.
48 HOUR FORECAST VALID 0600 UTC TUE APR 8.

.WARNINGS.

...GALE WARNING...
.24 HOUR FORECAST WITHIN 16N94.5W TO 16N95W TO 15.5N95W TO
15.5N94.5W TO 16N94.5W...INCLUDING THE GULF OF TEHUANTEPEC...NW
TO N WINDS 20 TO 30 KT. SEAS LESS THAN 8 FT.
.33 HOUR FORECAST WITHIN 16N94.5W TO 16N95W TO 15N95W TO
14.5N94.5W TO 15.5N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 8 TO 11 FT. ELSEWHERE
WITHIN 16N94W TO 16N96W TO 15N96W TO 14N95W TO 14N94W TO 16N94W
N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC
...N TO NE WINDS 30 TO 40 KT. SEAS 10 TO 14 FT. ELSEWHERE
WITHIN 15N94W TO 16N95W TO 15N97W TO 14N97W TO 13N95W TO 13N94W
TO 15N94W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 24N107W TO 25N108W TO 23N110W TO 22N111W TO 23N109W TO
21N108W TO 24N107W...INCLUDING THE GULF OF CALIFORNIA AND WITHIN
60 NM OF SHORE...NW TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.09 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.
.18 HOUR FORECAST WITHIN 26N109W TO 27N109W TO 29N112W TO
26N111W TO 23N109W TO 25N108W TO 26N109W...INCLUDING THE GULF OF
CALIFORNIA...NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 12N86W TO 12N88W TO 11N88W TO 11N87W TO 11N86W TO 12N86W
...INCLUDING THE GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.WITHIN 16N136W TO 18N137W TO 20N140W TO 10N140W TO 10N137W TO
16N136W NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE WITHIN
12N108W TO 17N130W TO 30N140W TO 17N136W TO 07N140W TO 04N134W TO
12N108W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL...
EXCEPT 8 TO 14 FT N OF 28N...HIGHEST NEAR 30N140W.
.24 HOUR FORECAST WITHIN 22N128W TO 30N124W TO 30N140W TO
09N140W TO 07N123W TO 09N112W TO 22N128W WINDS 20 KT OR LESS.
SEAS 8 TO 12 FT IN NW TO N SWELL.
.48 HOUR FORECAST WITHIN 26N115W TO 29N118W TO 30N140W TO
02N140W TO 05N130W TO 26N115W...INCLUDING NEAR SEBASTIAN
VIZCAINO BAY AND WITHIN 60 NM OF SHORE...WINDS 20 KT OR LESS.
SEAS 8 TO 11 FT IN NW SWELL.

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

CONVECTION VALID AT 0630 UTC SUN APR 6...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 07.5N78W TO 05N82.5W. ITCZ SEGMENT FROM
08N109.5W TO 05N119W WITH SURFACE TROUGH FROM 10N117W TO
01N121W. SOUTHERN ITCZ FROM 03S96W TO 00.5S107W TO BEYOND
02.5S120W. WIDELY SCATTERED MODERATE FROM 03.5N TO 05.5N BETWEEN
83W AND 86.5W...FROM 01N TO 03.5N BETWEEN 88W AND 90.5W...FROM
04N TO 10N BETWEEN 101W AND 131W...AND FROM 01S TO 03.4S BETWEEN
112W AND 120W. NUMEROUS MODERATE TO STRONG WITHIN 90 NM OF COASTS
OF COLOMBIA AND ECUADOR.

$$
.FORECASTER LEWITSKY. NATIONAL HURRICANE CENTER.