399
FZPN01 KWBC 072220
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC MON APR 07 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC APR 07.
24 HOUR FORECAST VALID 1800 UTC APR 08.
48 HOUR FORECAST VALID 1800 UTC APR 09.

.WARNINGS.

...GALE WARNING...
.LOW 55N147W 986 MB MOVING NE 10 KT. FROM 51N TO ALEUTIAN
ISLANDS BETWEEN 150W AND 162W WINDS 25 TO 35 KT. SEAS 8 TO 13
FT. ELSEWHERE N OF 50N E OF 163W WINDS TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 57N142W 988 MB. FROM 48N TO 57N BETWEEN
136W AND 150W...AND WITHIN 60 NM OF ALASKA S COAST BETWEEN 137W
AND 143W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 48N173W 1014 MB MOVING SE 30 KT. FROM 39N TO 47N BETWEEN
165W AND 171W WINDS 20 TO 30 KT. SEAS 12 TO 18 FT. ELSEWHERE
FROM 37N TO 52N BETWEEN 165W AND 168E WINDS TO 25 KT. SEAS 8 TO
12 FT.
.24 HOUR FORECAST LOW 43N154W 1010 MB. FROM 33N TO 44N BETWEEN
153W AND 169W WINDS 20 TO 30 KT. SEAS 10 TO 15 FT. FROM 34N TO
50N BETWEEN 143W AND 179W WINDS TO 20 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 38N143W 1008 MB. FROM 34N TO 40N BETWEEN
135W AND 151W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE S OF
43N BETWEEN 133W AND 168W WINDS TO 25 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 63N170W 1001 MB MOVING SE 15 KT. N OF 58N W OF 173W WINDS
TO 25 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 58N155W 994 MB. N OF 51N BETWEEN 157W AND
167W WINDS 25 TO 35 KT. SEAS 10 TO 14 FT. ELSEWHERE N OF 50N
BETWEEN 150W AND 177W WINDS TO 25 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW 57N149W 1001 MB. FROM 43N TO 57N BETWEEN
142W AND 166W WINDS TO 25 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.COMPLEX LOW W OF AREA WITH MAIN CENTER 39N150E 996 MB MOVING NE
20 KT. FROM 32N TO 40N W OF 167E WINDS 20 TO 35 KT. SEAS 8 TO 14
FT.
.24 HOUR FORECAST LOW W OF AREA 45N159E 987 MB. WITHIN 240 NM N
AND E OF LINE FROM 39N171E TO 43N172E TO 46N164E TO 46N160E..AND
FROM 38N TO 45N W OF 165E WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
ELSEWHERE FROM 34N TO 50N W OF 173E WINDS TO 25 KT. SEAS TO 12
FT.
.48 HOUR FORECAST LOW 47N162W 995 MB. FROM 40N TO 48N BETWEEN
178W AND 174E...AND S OF 52N W OF 171E WINDS TO 25 KT. SEAS 8 TO
14 FT.

.SYNOPSIS AND FORECAST.

.LOW 42N141W 1006 MB MOVING NE 35 KT. WITHIN 360 NM S OF LINE
FROM 46N133W TO LOW CENTER TO 42N148W TO 46N158W WINDS 20 TO 30
KT. SEAS 10 TO 15 FT. ELSEWHERE S OF 50N E OF 165W WINDS TO 20
KT. SEAS 8 TO 13 FT.
.24 HOUR FORECAST LOW 48N125W 1006 MB. FROM 40N TO 47N E OF 127W
WINDS 20 TO 30 KT. SEAS 10 TO 15 FT. ELSEWHERE S OF 50N E OF
143W WINDS 20 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. S OF 36N E OF 124W
WINDS LESS THAN 20 KT. SEAS TO 10 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM N OF
LINE FROM 47N162W TO 49N173W...AND FROM 53N TO 57N BETWEEN 147W
AND 150W.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 45N BETWEEN 173E AND
165E.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM N OF LINE FROM 49N173W
TO 50N160E...AND WITHIN 120 NM E AND SE OF LINE FROM 33N167E TO
37N170E TO 46N177W

.LIGHT TO MODERATE FREEZING SPRAY N OF 56N BETWEEN 153W AND 168W
.24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 58N157W TO 55N165W TO 60N179W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 55N
BETWEEN 152W AND 166W.

.AN ASH CLOUD HAS BEEN OBSERVED IN THE VICINITY OF MOUNT KATMAI
LOCATED AT 58.17N 154.58W AND EXTENDING SE TOWARD SHELIKOF
STRAIT. IT IS RESUSPENDED ASH FROM THE 1912 ERUPTION. THERE IS
NO ERUPTION. MARINERS ARE ENCOURAGED TO REPORT ANY OBSERVATION
OF VOLCANIC ASH ON THE OCEAN SURFACE BY CALLING OCEAN PREDICTION
CENTER AT 301-683-1520.

.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 1800 UTC MON APR 07.
24 HOUR FORECAST VALID 1800 UTC TUE APR 08.
48 HOUR FORECAST VALID 1800 UTC WED APR 09.

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO 14N95W TO 14N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 40 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 14N96W TO
14N95W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE
WINDS 30 TO 40 KT. SEAS 12 TO 16 FT. ELSEWHERE...WITHIN 16N94W TO
16N95W TO 16N96W TO 13N98W TO 13N95W TO 13N94W TO 16N94W NE
WINDS 20 TO 30 KT. SEAS 10 TO 14 FT. REMAINDER OF AREA...WITHIN
16N94W TO 16N97W TO 13N99W TO 12N99W TO 11N98W TO 12N94W TO
16N94W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST WITHIN 16N95W TO 16N96W TO 14N96W TO 13N96W TO
14N95W TO 15N94W TO 16N95W...INCLUDING THE GULF OF TEHUANTEPEC...
N TO NE WINDS 25 TO 30 KT. SEAS 9 TO 13 FT. ELSEWHERE...WITHIN
16N94W TO 13N103W TO 11N102W TO 10N100W TO 10N95W TO 12N93W TO
16N94W WINDS 20 KT OR LESS...EXCEPT NE 20 TO 25 KT FROM 13N TO
14N. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 30N116W TO 30N140W TO 04N140W TO 12N126W TO 30N116W
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW SWELL...EXCEPT 12 TO
14 FT FROM 14N TO 19N W OF 135W.
.24 HOUR FORECAST WITHIN 25N112W TO 30N116W TO 30N140W TO
00N140W TO 00N120W TO 25N112W...INCLUDING SEBASTIAN VIZCAINO BAY
AND WITHIN 60 NM OF SHORE..WINDS 20 KT OR LESS. SEAS 8 TO 10 FT
IN NW SWELL.
.48 HOUR FORECAST WITHIN 30N116W TO 28N121W TO 24N129W TO
21N140W TO 01N140W TO 03.4S119W TO 03.4S94W TO 07N107W TO
30N116W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL...
HIGHEST S OF 10N BETWEEN 117W AND 128W.

.WITHIN 09N114W TO 11N116W TO 10N122W TO 06N124W TO 05N121W TO
06N115W TO 09N114W WINDS 20 KT OR LESS. SEAS TO 8 FT IN N SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS 8 FT IN N SWELL.

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

CONVECTION VALID AT 2145 UTC MON APR 07...

.SCATTERED MODERATE FROM 01N TO 09N BETWEEN 81W AND 90W AND
FROM 02N TO 05N BETWEEN 131W AND 134W AND WITHIN 60 NM OF
11N104W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 06N77W TO 04N83W. ITCZ AXIS EXTENDS
FROM 08N100W TO 06N110W TO 06N122W. A SECOND ITCZ EXTENDS FROM
03N92W TO BELOW THE EQUATOR AT 100W TO BEYOND 05S120W. SCATTERED
MODERATE ISOLATED STRONG WITHIN 180 NM N OF THE NORTHERN ITCZ
BETWEEN 110W AND 115W AND WITHIN 60 NM S OF THE SAME ITCZ BETWEEN
107W AND 109W AND WITHIN 120 NM N OF THE SECOND ITCZ BETWEEN
105W AND 110W.

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.