High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 210429
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC FRI SEP 21 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE).

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

SYNOPSIS VALID 0000 UTC SEP 21.
24 HOUR FORECAST VALID 0000 UTC SEP 22.
48 HOUR FORECAST VALID 0000 UTC SEP 23.

.WARNINGS.

...GALE WARNING...
.LOW 56N180W 999 MB MOVING NE 15 KT. FRONT EXTENDS FROM LOW TO
54N177W TO 49N180W TO 40N171E. WITHIN 240 NM NE AND E OF FRONT N
OF 48N WINDS 25 TO 40 KT. SEAS 10 TO 19 FT. ELSEWHERE OVER
FORECAST WATERS FROM 49N TO 60N BETWEEN 170W AND 174E AND WITHIN
360 NM E OF FRONT WINDS TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 60N174W 983 MB. FRONT TO EXTEND FROM
57N159W TO 39N173E. WITHIN 180 NM S AND SW QUADRANTS WINDS 30 TO
45 KT. SEAS 11 TO 20 FT. ALSO WITHIN 300 NM SE AND 240 NM SW AND
W QUADRANTS AND FROM 62N TO 64N W OF 164W AND WITHIN 180 NM E OF
FRONT FROM 43N TO 56N WINDS 25 TO 35 KT. SEAS 8 TO 15 FT...
HIGHEST S OF LOW AND E OF FRONT. ELSEWHERE FROM 54N TO 65N
BETWEEN 152W AND 178E AND WITHIN 360 NM E OF FRONT WINDS TO 25
KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 62N165W 987 MB. WITHIN 360 NM OF LOW WINDS
20 TO 30 KT. SEAS 9 TO 14 FT...EXCEPT N OF 59N 10 FT OR LESS.

...GALE WARNING...
.LOW 49N129W 1008 MB MOVING N 10 KT. OVER FORECAST WATERS WITHIN
90 NM NE QUADRANT WINDS 25 TO 35 KT. SEAS TO 9 FT. ELSEWHERE
WITHIN 180 NM OF LOW EXCEPT W QUADRANT WINDS TO 25 KT. SEAS TO 8
FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS AS DESCRIBED
WITH LOW 49N129W 1003 MB BELOW.

...GALE WARNING...
.LOW 46N138W 1010 MB MOVING NE 15 KT. FRONT EXTENDS FROM LOW TO
40N145W. WITHIN 180 NM SE QUADRANT AND WITHIN 120 NM E OF FRONT
WINDS TO 25 KT. SEAS TO 9 FT.
.12 HOUR FORECAST LOW 48N133W 1002 MB. WITHIN 120 NM S AND SW
SEMICIRCLES WINDS 25 TO 35 KT. SEAS 9 TO 14 FT.
.24 HOUR FORECAST LOW 49N129W 1003 MB. WITHIN 240 NM S AND 180
NM W QUADRANTS WINDS 25 TO 30 KT. SEAS 9 TO 16 FT. ELSEWHERE
OVER FORECAST WATERS FROM 44N TO 54N E OF 137W WINDS TO 25 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST LOW INLAND 51N123W 1012 MB. FROM 48N TO 51N E
OF 130W WINDS TO 25 KT. SEAS TO 8 FT.

.SYNOPSIS AND FORECAST.

.FROM 34N TO 43N BETWEEN 123W AND 128W AREA OF NW TO N WINDS 20
TO 30 KT. SEAS TO 11 FT.
.24 HOUR FORECAST FROM 38N TO 41N BETWEEN 124W AND 126W AREA OF
N WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 36N TO 41N BETWEEN 123W AND 125W AREA OF
N TO NW WINDS TO 25 KT. SEAS TO 8 FT.

.FROM 30N TO 35N BETWEEN 150W AND 157W AREA OF SE WINDS TO 25
KT. SEAS TO 9 FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.FRONT EXTENDS FROM 38N152W TO 34N169W. WITHIN 300 NM N OF THE
FRONT WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST FRONT FROM 37N149W TO 34N170W. WITHIN 240 NM N
OF FRONT WINDS 20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 35N TO 39N BETWEEN 147W AND 158W WINDS TO
25 KT. SEAS TO 9 FT.

.LOW 46N140W 1010 MB MOVING E 05 KT. WITHIN 360 NM N...480 NM W
AND 360 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS TO 11 FT.
.12 HOUR FORECAST LOW DISSIPATED WITH ASSOCIATED CONDITIONS
MERGED WITH LOW 48N133W IN WARNINGS SECTION.

.OVER FORECAST WATERS FROM 35N TO 39N W OF 165E AREA OF NE WINDS
TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.24 HOUR FORECAST LOW 51N161E 1006 MB. OVER FORECAST WATERS FROM
46N TO 51N W OF 165E WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 45N TO 48N BETWEEN 180W
AND 170E W WINDS TO 25 KT. SEAS TO 8 FT.

.36 HOUR FORECAST NEW LOW 51N169W 1008 MB. WITHIN 300 NM E AND
SE OF A LINE FROM 57N152W TO THE LOW CENTER TO 41N178W AREA OF
SW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT...HIGHEST NEAR 52N158W.
.48 HOUR FORECAST LOW 51N157W 1006 MB. FROM 50N TO 57N BETWEEN
139W AND 155W AND WITHIN 360 NM E OF A LINE FROM LOW CENTER TO
44N169W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM E OF
A LINE FROM 55N179W TO 40N171E.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.HIGH 38N137W 1025 MB MOVING S 05 KT.
.24 HOUR FORECAST HIGH 35N137W 1024 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 47N164W 1036 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 46N158W 1032 MB.
.48 HOUR FORECAST HIGH 45N149W 1031 MB.

.HIGH 40N163E 1022 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST NEW HIGH 42N167W 1024 MB.

.48 HOUR FORECAST NEW HIGH 34N177E 1020 MB.

.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 0000 UTC FRI SEP 21.
24 HOUR FORECAST VALID 0000 UTC SAT SEP 22.
48 HOUR FORECAST VALID 0000 UTC SUN SEP 23.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 28N BETWEEN 123W AND 129W WINDS 20 KT OR LESS. SEAS TO 8
FT IN NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.FROM 13N TO 19N BETWEEN 138W AND 140W WINDS 20 KT OR LESS. SEAS
8 FT PRIMARILY IN NE SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF TEHUANTEPEC 06 HOUR FORECAST N WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.18 HOUR FORECAST 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 0300 UTC FRI SEP 21...

.LOW PRES 14.5N124W 1010 MB...SCATTERED MODERATE ISOLATED STRONG
WITHIN 75 NM OF LINE FROM 15.5N122.5W TO 08N138W.

.SCATTERED MODERATE ISOLATED STRONG WITHIN GULF OF CALIFORNIA S
OF 25N.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N77W TO 09N84W TO 11N105W TO 10.5N117W...
RESUMES FROM 13N125W TO 10N133W. SCATTERED MODERATE ISOLATED
STRONG WITHIN 180 NM EITHER SIDE OF A OF LINE FROM 07N83W TO
13N94W...AND FROM 06N TO 15N BETWEEN 102W AND 119W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.


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