High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 291105 CCB
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SAT APR 29 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 29.
24 HOUR FORECAST VALID 0600 UTC APR 30.
48 HOUR FORECAST VALID 0600 UTC MAY 01.

.WARNINGS.

...STORM WARNING...
.LOW 50N141W 1002 MB MOVING NE 20 KT AND INTENSIFYING. FRONT
EXTENDS FROM LOW TO 46N132W.  WITHIN 120 NM NE OF FRONT WINDS 30
TO 45 KT. SEAS 9 TO 14 FT. ELSEWHERE FROM 43N TO 52N BETWEEN
131W AND 147W AND WITHIN 240 NM NE QUADRANT WINDS 20 TO 30 KT.
SEAS TO 9 FT.
.12 HOUR FORECAST LOW 53N135W 993 MB. FRONT TO EXTEND FROM LOW
TO 50N130W TO 47N128W. WITHIN 90 NM NE OF FRONT N OF 49N WINDS
40 TO 55 KT. SEAS 11 TO 18 FT. ALSO WITHIN 150 NM S AND SW
QUADRANTS WINDS 35 TO 45 KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN
240 NM OF LOW EXCEPT 120 NM NW QUADRANT WINDS 25 TO 35 KT. SEAS
8 TO 14 FT.
.24 HOUR FORECAST LOW 53N131W 1002 MB. WITHIN 240 NM S AND 180
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 19 FT. ELSEWHERE
FROM 47N TO 54N E OF 140W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. FROM 46N TO 52N E OF
131W WINDS LESS THAN 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.LOW 53N165E 976 MB MOVING E 25 KT. OVER FORECAST WATERS WITHIN
420 NM S AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 14 TO 22 FT.
ELSEWHERE FROM 42N TO 53N W OF 180W WINDS 20 TO 30 KT. SEAS 10
TO 18 FT.
.24 HOUR FORECAST LOW 52N178W 990 MB. FROM 45N TO 51N BETWEEN
174W AND 175E WINDS 25 TO 40 KT. SEAS 15 TO 22 FT. ELSEWHERE
WITHIN 600 NM SE SEMICIRCLE AND 480 NM W QUADRANT WINDS 20 TO 30
KT. SEAS 10 TO 16 FT...EXCEPT N OF ALEUTIAN ISLANDS 10 FT OR
LESS.
.48 HOUR FORECAST LOW 54N164W 994 MB. WITHIN 540 NM S AND SE
QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 17 FT.

...GALE WARNING...
.LOW 52N174W 989 MB MOVING N 20 KT NEXT 12 HOURS THEN SLOWING
WHILE TURNING MORE W AND THEN AFTER 24 HOURS MOVING S 10 KT.
FRONT EXTENDS FROM 58N177E TO LOW CENTER TO 48N170W TO 40N176W
TO 35N170E. WITHIN 120 NM E OF FRONT FROM 43N TO 51N WINDS 30 TO
45 KT. SEAS 10 TO 16 FT. ALSO WITHIN 180 NM NE AND E OF FRONT
FROM 39N TO 53N WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE
FROM 43N TO 52N BETWEEN 162W AND 179W AND WITHIN 240 NM NE AND E
OF FRONT N OF 43N AND WITHIN 300 NM E AND SE OF FRONT S OF 43N
WINDS 20 TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW 56N176W 986 MB. FRONT TO EXTEND FROM LOW
TO 57N170W TO 53N158W TO 43N160W TO 35N170W. WITHIN 120 NM N AND
NE OF FRONT N OF 53N AND WITHIN 180 NM NE AND E OF FRONT FROM
43N TO 53N WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE OVER
FORECAST WATERS FROM 55N TO 62N W OF 176W AND WITHIN 240 NM
N...NE AND E OF FRONT WINDS 20 TO 30 KT. SEAS IN ICE FREE WATERS
TO 11 FT.
.48 HOUR FORECAST LOW 52N173W 992 MB. FRONT TO EXTEND FROM
55N174W TO 59N162W TOI 56N144W TO 41N158W. WITHIN 540 NM SW AND
W SEMICIRCLES...WITHIN 300 NM N OF FRONT W OF 168W AND 180 NM NE
AND E OF FRONT E OF 158W WINDS 20 TO 30 KT. SEAS 8 TO 14
FT...HIGHEST IN S QUADRANT.

...GALE WARNING...
.LOW S OF AREA 29N156W 1013 MB MOVING SW 15 KT. OVER FORECAST
WATERS WITHIN 540 NM N AND NW QUADRANTS WINDS 20 TO 30 KT. SEAS
TO 10 FT.
.12 HOUR FORECAST LOW S OF AREA NEAR 28N158W 1008 MB. FROM 30N
TO 33N BETWEEN 156W AND 162W WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW S OF AREA 26N161W 1009 MB. FROM 30N TO 33N
BETWEEN 147W AND 163W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW AND CONDITIONS WELL S OF AREA.

...GALE WARNING...
.OVER FORECAST WATERS FROM 30N TO 35N W OF 170E WINDS TO 25 KT.
SEAS TO 9 FT.
.24 HOUR FORECAST LOW 36N165E 1006 MB. FROM 33N TO 40N BETWEEN
175E AND 163E AND WITHIN 360 NM S QUADRANT WINDS 20 TO 30 KT.
SEAS TO 11 FT.
.48 HOUR FORECAST LOW 38N172W 1005 MB. FROM 35N TO 39N BETWEEN
171W AND 178E WINDS 25 TO 35 KT. SEAS 9 TO 13 FT. ELSEWHERE FROM
31N TO 40N BETWEEN 170W AND 172E AND WITHIN 360 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 10 FT.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS E OF A LINE FROM 43N126W TO 30N130W AREA
OF N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 14 FT...HIGHEST NEAR
32N121W.
.24 HOUR FORECAST FROM 30N TO 41N BETWEEN 121W AND 129W N TO NW
WINDS TO 25 KT. SEAS TO 11 FT.
.48 HOUR FORECAST E OF A LINE FROM 42N126W TO 30N131W N TO NW
WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

.LOW 55N146W 1013 MB MOVING NW 10 KT. WITHIN 240 NM NE QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LOW 59N151W 1008 MB. WINDS LESS THAN 25 KT.
SEAS LESS THAN 8 FT.
.36 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN AN AREA
BOUNDED BY A LINE FROM 49N136W TO 41N132W TO 36N150W TO 49N136W
AND WITHIN 120 NM E OF A LINE FROM 48N170W TO 39N177W AND ALSO
OVER FORECAST WATERS FROM 30N TO 33N W OF 164E.
.24 HOUR FORECAST DENSE FOG WITHIN 240 NM E OF A LINE FROM
41N147W TO 33N153W AND FROM 30N TO 37N W OF 173E.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM SE OF A LINE FROM
44N135W TO 35N157W...FROM 37N TO 39N BETWEEN 165W AND 178W AND
FROM 41N TO 45N W OF 163E.

.HIGH 45N127W 1029 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 37N135W 1030 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 33N170W 1030 MB MOVING SW 10 KT.
.24 HOUR FORECAST HIGH 30N174W 1025 MB.
.48 HOUR FORECAST HIGH S OF AREA.

.HIGH 39N161W 1029 MB MOVING NE 40 KT.
.24 HOUR FORECAST HIGH 43N139W 1029 MB.
.48 HOUR FORECAST HIGH 44N128W 1030 MB.

.HIGH 38N167E 1020 MB MOVING E 30 KT.
.24 HOUR FORECAST HIGH 39N178W 1021 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.48 HOUR FORECAST HIGH 40N168E 1025 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 0600 UTC SAT APR 29.
24 HOUR FORECAST VALID 0600 UTC SUN APR 30.
48 HOUR FORECAST VALID 0600 UTC MON MAY 01.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 27N BETWEEN 117W AND 124W NW TO N WINDS 20 TO 25 KT. SEAS
10 TO 12 FT IN NW SWELL. ELSEWHERE N OF 21N BETWEEN 115W AND
128W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.24 HOUR FORECAST N OF 20N BETWEEN 113W AND 130W WINDS 20 KT OR
LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.
.48 HOUR FORECAST N OF 26N BETWEEN 122W AND 130W WINDS 20 KT OR
LESS. SEAS 8 FT IN MIXED SW AND NW SWELL.

.S OF A LINE FROM 03.4S93W TO 12N117W TO 00N124W WINDS 20 KT OR
LESS. SEAS 8 TO 9 FT IN SW SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.36 HOUR FORECAST S OF THE EQUATOR AND E OF 107W WINDS 20 KT OR
LESS. SEAS 8 FT IN SW SWELL.
.48 HOUR FORECAST S OF 02N BETWEEN 100W AND 125W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN SW SWELL.

.GULF OF CALIFORNIA 06 HOUR FORECAST N OF 29.5N W OF 113.5W NW
TO N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 26N TO 28N NW WINDS 20 TO 25 KT. SEAS TO
8 FT.
.30 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 0900 UTC SAT APR 29...

.SCATTERED MODERATE ISOLATED STRONG FROM 02N TO 13N WITHIN 120
NM OF CENTRAL AMERICA COAST.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH AXIS EXTENDS FROM 03N95W TO 06N100W TO 06N114W
AND FROM 05N109W TO 01N111W. ITCZ AXIS EXTENDS FROM 03N125W TO
02N140W. SCATTERED MODERATE FROM 02N TO 09N BETWEEN 97W AND
110W.

$$
.FORECASTER LATTO. NATIONAL HURRICANE CENTER.



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