High Seas Forecast
Issued by NWS

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467
FZPN01 KWBC 281550
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC FRI APR 28 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

PACIFIC N OF 30N AND S OF 67N E OF A LINE FROM BERING STRAIT
TO 50N 160E

SYNOPSIS VALID 1200 UTC APR 28.
24 HOUR FORECAST VALID 1200 UTC APR 29.
48 HOUR FORECAST VALID 1200 UTC APR 30.

.WARNINGS.

...STORM WARNING...
.LOW 43N148W 1012 MB MOVING NE 30 KT AND INTENSIFYING. WITHIN
420 NM SE SEMICIRCLE WINDS TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST LOW 48N142W 1010 MB. WITHIN 360 NM E AND 180
NM NE QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW 51N137W 999 MB. WITHIN 240 NM NE...420 NM
SE AND 300 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 8 TO 13 FT.
.30 HOUR FORECAST LOW 52N134W 995 MB. OVER FORECAST WATERS
WITHIN 90 NM E OF A LINE FROM 53N132W TO 49N128W WINDS 35 TO 50
KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW 52N129W 1010 MB. WITHIN 180 NM SW QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.LOW W OF AREA 54N162E 968 MB MOVING SE 10 KT. FRONT EXTENDS
FROM 55N171E TO 51N177E TO 42N173E TO 33N160E. OVER FORECAST
WATERS WITHIN 540 NM S AND SE QUADRANTS AND WITHIN 360 NM E AND
SE OF THE FRONT WINDS 25 TO 40 KT. SEAS 10 TO 20 FT.
.24 HOUR FORECAST LOW 52N168E 982 MB. WITHIN 300 NM S QUADRANT
WINDS 35 TO 45 KT. SEAS 16 TO 24 FT. ELSEWHERE WITHIN 600 NM S
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 19 FT.
.48 HOUR FORECAST LOW 52N173W 989 MB. WITHIN 540 NM S SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 11 TO 22 FT.

...GALE WARNING...
.OVER FORECAST WATERS FROM 30N TO 35N BETWEEN 118W AND 123W AREA
OF N TO NW WINDS 25 TO 35 KT. SEAS 10 TO 15 FT. ELSEWHERE FROM
30N TO 40N E OF 126W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST FROM 30N TO 41N BETWEEN 119W AND 127W N TO NW
WINDS TO 25 KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST FROM 32N TO 40N BETWEEN 121W AND 127W N TO NW
WINDS 20 TO 30 KT. SEAS TO 11 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 54N174W 988 MB. FRONT TO EXTEND FROM
58N177E TO THE LOW TO 48N167W TO 41N172W TO 36N177E. WITHIN 300
NM NE AND E OF THE FRONT...ALSO WITHIN 480 NM S QUADRANT WINDS
25 TO 35 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 56N176W 986 MB. FRONT TO EXTEND FROM THE
LOW TO 58N167W TO 54N153W TO 48N154W TO 41N160W. WITHIN 240 NM N
AND NW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE
WITHIN 180 NM N AND 240 NM E OF THE FRONT WINDS 20 TO 30 KT.
SEAS 8 TO 13 FT.

...GALE WARNING...
.24 HOUR FORECAST FROM 30N TO 34N BETWEEN 146W AND 164W WINDS 20
TO 30 KT. SEAS TO 11 FT.
.30 HOUR FORECAST NEW LOW S OF AREA NEAR 29N158W 1012 MB. OVER
FORECAST WATERS WITHIN 300 NM N AND NW QUADRANTS WINDS 25 TO 35
KT. SEAS 9 TO 13 FT.
.48 HOUR FORECAST LOW WELL S OF AREA. FROM 30N TO 32N BETWEEN
160W AND 165W WINDS TO 25 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.LOW 36N152W 1014 MB MOVING NE 15 KT. FRONT EXTENDS FROM THE LOW
TO 30N155W. WITHIN 720 NM W QUADRANT AND 240 NM E OF THE FRONT
WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.LOW 53N147W 1018 MB MOVING N 10 KT. WINDS LESS THAN 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST LOW 57N146W 1012 MB. FROM 58N TO 60N BETWEEN
144W AND 152W WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.24 HOUR FORECAST OVER FORECAST WATERS FROM 30N TO 37N W OF 167E
WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW 38N169E 1006 MB. WITHIN 420 NM S AND 180
NM N SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN THE REGION
BOUNDED BY A LINE FROM 46N146W TO 35N152W TO 40N139W TO 36N130W
TO 42N133W TO 46N146W...ALSO WITHIN 180 NM E OF A LINE FROM
47N175E TO 39N171E.
.24 HOUR FORECAST DENSE FOG BETWEEN 131W AND A LINE FROM 49N134W
TO 39N144W...ALSO FROM 30N TO 34N BETWEEN 160E AND 164E.
.48 HOUR FORECAST DENSE FOG FROM 39N TO 41N BETWEEN 129W AND
147W...WITHIN 180 NM OF 37N150W...AND WITHIN THE REGION BOUNDED
BY A LINE FROM 38N170E TO 30N160E TO 30N165E TO 35N178E TO
38N170E.

.HIGH 47N132W 1030 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 36N136W 1028 MB DRIFTING NE.
.24 HOUR FORECAST HIGH 37N135W 1029 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 34N175W 1032 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 32N171W 1028 MB.
.48 HOUR FORECAST HIGH 32N168W 1023 MB.

.HIGH W OF AREA 36N156E 1015 MB MOVING NE 30 KT.
.24 HOUR FORECAST HIGH 38N170E 1022 MB.
.48 HOUR FORECAST HIGH 39N173W 1021 MB.

.24 HOUR FORECAST NEW HIGH 42N154W 1026 MB.
.48 HOUR FORECAST HIGH 44N135W 1029 MB.

.FORECASTER REINHART. 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 28.
24 HOUR FORECAST VALID 1200 UTC SAT APR 29.
48 HOUR FORECAST VALID 1200 UTC SUN APR 30.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 27.5N BETWEEN 117W AND 124W NW TO N WINDS 20 TO 25 KT.
SEAS 9 TO 12 FT. ELSEWHERE N OF 23.5N BETWEEN 115W AND 128W
WINDS 20 KT OR LESS. SEAS TO 10 FT IN NW SWELL.
.24 HOUR FORECAST N OF 28N BETWEEN 118W AND 125W NW TO N WINDS
20 TO 25 KT. SEAS 9 TO 11 FT. ELSEWHERE N OF 21N BETWEEN 114W
AND 128W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.48 HOUR FORECAST N OF 17N BETWEEN 112W AND 131W WINDS 20 KT OR
LESS. SEAS TO 9 FT IN MIXED NW SWELL.

.FROM 06N TO 17N W OF 130W WINDS 20 KT OR LESS. SEAS TO 9 FT IN
MIXED NE AND NW SWELL.
.24 HOUR FORECAST FROM 08N TO 12N W OF 138W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN MIXED NE AND NW SWELL.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF LINE FROM 03.4S97W TO 03N113W TO 08N123W TO 00N128W WINDS
20 KT OR LESS. SEAS 8 TO 10 FT IN SW SWELL.
.24 HOUR FORECAST S OF LINE FROM 03.4S90W TO 11N110W TO 09N125W
TO 00N122W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SW SWELL.
.48 HOUR FORECAST S OF 11N BETWEEN 90W AND 121W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN SW SWELL EXCEPT MIXED NE AND SW SWELL W OF
110W.

.GULF OF CALIFORNIA 24 HOUR FORECAST N OF 29.5N NW TO N WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST GULF OF CALIFORNIA FROM 26.5N TO 30N NW
TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST GULF OF CALIFORNIA FROM 26N TO 27.5N WINDS 20
KT OR LESS. SEAS TO 8 FT IN N SWELL.
.48 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 1415 UTC FRI APR 28...

.SCATTERED MODERATE FROM 03.5N TO 06N E OF 79W.

.WIDELY SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM EITHER
SIDE OF LINE FROM 07.5N126W TO 11N140W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
TROUGH AXIS EXTENDS FROM 10N87W TO 07N103W TO 05N123W. ITCZ
EXTENDS FROM 05N123W TO 02.5N132W TO BEYOND 03N140W. SCATTERED
TO LOCALLY NUMEROUS MODERATE TO STRONG CONVECTION IS NOTED FROM
02N TO 07N BETWEEN 83W AND 106W.

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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