854
FZPN01 KWBC 092220
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI MAY 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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).

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 MAY 09.
24 HOUR FORECAST VALID 1800 UTC MAY 10.
48 HOUR FORECAST VALID 1800 UTC MAY 11.

.WARNINGS.

...GALE WARNING...
.LOW 54N171W 987 MB MOVING N 10 KT AND WILL TURN NW AFTER 06
HOURS. WITHIN 240 NM NE AND 420 NM E QUADRANTS AREA OF SE WINDS
30 TO 45 KT. SEAS 9 TO 15 FT. ALSO WITHIN 600 NM SE AND 540 NM SW
QUADRANTS AREA OF SW TO W WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
AND WITHIN 420 NM NW...480 NM NE...960 NM SE...AND 780 NM SW
QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 18 FT. ELSEWHERE WITHIN
960 NM SW QUADRANT WINDS LESS THAN 25 KT. SEAS TO 10 FT IN NW
SWELL.
.24 HOUR FORECAST LOW 58N175W 1000 MB. WITHIN 540 NM SW...180 NM
NW...AND 360 NM N AND E QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11
FT.
.48 HOUR FORECAST LOW 56N179E 996 MB. WITHIN 540 NM S...360 NM
W...AND 240 NM N QUADRANTS WINDS 20 TO 30 KT. SEAS TO 10 FT.

...GALE WARNING...
.LOW 36N173E 1010 MB MOVING NE 25 KT. WITHIN 720 NM SW...240 NM
NW...420 NM NE...AND 600 NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 12 FT...HIGHEST SW AND NW QUADRANTS.
.06 HOUR FORECAST LOW 37N174E 1007 MB. WITHIN 240 NM W SEMICIRCLE
AND WITHIN 360 NM NE QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 14
FT.
.24 HOUR FORECAST LOW 43N178W 996 MB. FROM 33N TO 45N BETWEEN
172W AND 180W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ALSO S OF 47N
BETWEEN 167W AND 174E WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
ELSEWHERE WITHIN 960 NM SW QUADRANT AREA OF N WINDS TO 25 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST LOW 54N172W 988 MB. FROM 42N TO 52N BETWEEN
161W AND 174W WINDS 30 TO 45 KT. SEAS 10 TO 20 FT. ALSO WITHIN
300 NM NE AND 360 NM E QUADRANTS AREA OF SE WINDS 25 TO 40 KT.
SEAS 8 TO 13 FT. AND WITHIN AN AREA BOUNDED BY A LINE FROM
62N173W TO 55N155W TO 35N166W TO 44N179E TO 62N173W WINDS 20 TO
30 KT. SEAS 8 TO 15 FT...HIGHEST S OF THE ALEUTIANS. ELSEWHERE
WITHIN 1200 NM S QUADRANT WINDS TO 25 KT. SEAS TO 10 FT IN N
SWELL.

...GALE WARNING...
.LOW 46N140W 1009 MB MOVING NE 15 KT. WITHIN 240 NM OF LOW EXCEPT
480 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT.
.18 HOUR FORECAST LOW 50N137W 1007 MB. BETWEEN 180 NM AND 420 NM
S QUADRANT AREA OF SW TO W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 51N137W 1005 MB. FROM 44N TO 55N BETWEEN
126W AND 136W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.42 HOUR FORECAST LOW 52N135W 1007 MB. WITHIN 120 NM W SEMICIRCLE
AREA OF N WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 51N134W 1007 MB. WITHIN 180 NM W SEMICIRCLE
AREA OF NW TO N WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE
FROM 47N TO 56N BETWEEN 134W AND 144W AREA OF NW TO N WINDS 20 TO
30 KT. SEAS TO 10 FT.

...GALE WARNING...
.42 HOUR FORECAST LOW W OF AREA 46N151E 986 MB. W OF A LINE FROM
33N160E TO 41N164E TO 48N160E AREA OF SE TO S WINDS 25 TO 35 KT.
SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW 46N153E 988 MB. W OF A LINE FROM 48N160E TO
42N166E TO 39N166E TO 35N163E WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
ELSEWHERE WITHIN 360 NM NE AND 900 NM SE QUADRANTS WINDS 20 TO 30
KT. SEAS TO 12 FT.

.SYNOPSIS AND FORECAST.

.LOW 57N144W 1008 MB MOVING N 05 KT AND WILL TURN NW THEN W AFTER
06 HOURS. BETWEEN 120 NM AND 240 NM NW AND NE...AND BETWEEN 240
NM AND 600 NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. WINDS
AND SEAS HIGHEST BETWEEN 240 NM AND 600 NM SE QUADRANT.
.24 HOUR FORECAST LOW 58N148W 1010 MB. ASSOCIATED CONDITIONS
DIMINISHED.
.48 HOUR FORECAST LOW DISSIPATED. FROM 57N TO 59N BETWEEN 148W
AND 154W AREA OF SW TO W WINDS 20 TO 30 KT. SEAS TO 8 FT.

.FROM 33N TO 42N BETWEEN 121W AND 126W AREA OF NW TO N WINDS TO
25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 32N TO 42N BETWEEN 120W AND 126W AREA OF
NW TO N WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST S OF 36N BETWEEN 119W AND 123W AREA OF NW WINDS
20 TO 30 KT. SEAS TO 10 FT.

.24 HOUR FORECAST NEW LOW 50N146W 1004 MB. FROM 38N TO 51N
BETWEEN 138W AND 158W WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 45N132W 1005 MB. FROM 35N TO 47N BETWEEN
127W AND 147W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.48 HOUR FORECAST FROM 40N TO 50N BETWEEN 147W AND 155W WINDS
LESS THAN 25 KT. SEAS TO 12 FT IN W TO NW SWELL.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM W OF A LINE FROM
54N170E TO 50N174E...E OF A LINE FROM 56N135W TO 59N138W...WITHIN
90 NM EITHER SIDE OF A LINE FROM 35N176E TO 39N178E TO
42N166W...N OF 54N BETWEEN 166W AND 180W...AND WITHIN AN AREA
BOUNDED BY A LINE FROM 55N165W TO 48N159W TO 48N156W TO 51N154W
TO 56N162W TO 55N165W.
.24 HOUR FORECAST DENSE FOG NE OF A LINE FROM 59N138W TO
57N136W...FROM 41N TO 48N BETWEEN 172W AND 180W...WITHIN 60 NM
EITHER SIDE OF A LINE FROM 47N172W TO 44N164W...AND W OF A LINE
FROM 55N175E TO 58N169W TO 60N171W.
.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 42N162E TO
45N161E...FROM 47N TO 54N BETWEEN 157W AND 177W...AND FROM 54N TO
62N BETWEEN 169W AND 171E.

.LIGHT FREEZING SPRAY WITHIN 60 NM OF 63N171W AND 65N167W.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LIGHT FREEZING SPRAY WITHIN 60 NM OF 65N167W.

.FORECASTER FIGURSKEY. OCEAN PREDICTION CENTER.

NWS 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 FRI MAY 09.
24 HOUR FORECAST VALID 1800 UTC SAT MAY 10.
48 HOUR FORECAST VALID 1800 UTC SUN MAY 11.

.WARNINGS.

...GALE WARNING...
.12 HOUR FORECAST N OF 15N BETWEEN 94W AND 95.5W...INCLUDING THE
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS BUILDING TO 8 FT.
.18 HOUR FORECAST N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING
THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 8 TO 9 FT.
ELSEWHERE N OF 14N BETWEEN 94W AND 96W N WINDS 20 TO 20 KT. SEAS
8 FT.
.24 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO
15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
35 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 45 NM OF A LINE FROM
16N95W TO 15N95W TO 13N96.5W N TO NE WINDS 20 TO 30 KT. SEAS 8
TO 9 FT.
.36 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO
13.5N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30
TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE WITHIN 45 NM OF A LINE FROM
16N95W TO 13.5N96W TO 12.5N98W N TO NE WINDS 20 TO 30 KT. SEAS 8
TO 11 FT.
.48 HOUR FORECAST WITHIN 30 NM OF A LINE FROM 16N95W TO
14N96W...INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 30 TO
35 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 45 NM OF A LINE FROM
16N95W TO 14N96W TO 12.5N98W TO 12N101W N TO NE WINDS 20 TO 30
KT. SEAS 8 TO 11 FT.

.SYNOPSIS AND FORECAST.

.FROM 08N TO 15N W OF 126W WINDS 20 KT OR LESS. SEAS 8 FT IN NW
SWELL.
.24 HOUR FORECAST FROM 08N TO 16N W OF 128W WINDS 20 KT OR LESS.
SEAS 8 FT IN NW SWELL.
.48 HOUR FORECAST FROM 08N TO 16N W OF 132W WINDS 20 KT OR LESS.
SEAS 8 FT IN NW SWELL.

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

CONVECTION VALID AT 2100 UTC FRI MAY 9...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM A 1009 MB LOW PRESSURE LOCATED
OVER NORTHERN COLOMBIA NEAR 10N75W TO 08N110W. THE ITCZ
CONTINUES FROM 08N110W TO 08N125W TO 06N140W. SCATTERED MODERATE
CONVECTION CAN BE FOUND FROM 03N TO 10N BETWEEN 85W AND 100W...
FROM 06N TO 12N BETWEEN 100W AND 110W...AND FROM 08N TO 10N
BETWEEN 110W AND 125W.


.FORECASTER GR. NATIONAL HURRICANE CENTER.

$$