High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 182206
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC FRI APR 18 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 1800 UTC APR 18.
24 HOUR FORECAST VALID 1800 UTC APR 19.
48 HOUR FORECAST VALID 1800 UTC APR 20.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW 48N148W 970 MB MOVING NE 15 KT THEN TURNING N AFTER 12
HOURS. WITHIN 180 NM SW OF A LINE FROM 44N143W TO 46N148W TO
49N152W WINDS 45 TO 60 KT. SEAS 18 TO 28 FT. ELSEWHERE WITHIN
540 NM S AND 300 NM W QUADRANTS...AND WITHIN 120 NM NE AND E OF
A FRONT FROM 52N145W TO 49N139W TO 44N137W WINDS 35 TO 45 KT.
SEAS 14 TO 24 FT...EXCEPT 8 TO 15 FT NE AND E OF FRONT. ALSO
WITHIN 480 NM NE AND 360 NM NW QUADRANTS...AND 720 NM S
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 20 FT...EXCEPT 8 TO 15
FT N OF LOW. AND FROM 30N TO TO 37N BETWEEN 176W AND A 38N140W
TO 30N165W LINE WINDS LESS THAN 25 KT. SEAS 8 TO 16 FT WITH NW
SWELL.
.06 HOUR FORECAST LOW 50N145W 969 MB. WITHIN 180 NM SW OF A LINE
FROM 50N149W TO 47N145W TO 45N139W WINDS 50 TO 65 KT. SEAS 23 TO
36 FT. ELSEWHERE WITHIN 600 NM S AND 360 NM W QUADRANTS AND
WITHIN 180 NM N AND NE OF A FRONT FROM 52N144W TO 50N137W TO
47N134W WINDS 35 TO 50 KT. SEAS 12 TO 19 FT...EXCEPT 20 TO 32 FT
OVER S QUADRANT. ALSO WITHIN 780 NM S SEMICIRCLE...AND 540 NM NE
AND 480 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 21 FT...
HIGHEST S AND SW OF CENTER.
.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 54N146W 975 MB
AND SECOND CENTER TO FORM 52N138W 975 MB. BETWEEN 60 NM AND 300
NM S AND SW QUADRANTS OF SECOND CENTER WINDS 40 TO 50 KT. SEAS
22 TO 38 FT. ALSO WITHIN 120 NM N AND NE OF A LINE FROM 56N154W
TO 55N139W TO 51N130W WINDS 35 TO 45 KT. SEAS 12 TO 20 FT.
ELSEWHERE WITHIN 360 NM NE AND SW...660 NM SE AND 480 NM NW
QUADRANTS OF SECOND CENTER AND WITHIN 300 NM W SEMICIRCLE OF
MAIN CENTER WINDS 25 TO 40 KT. SEAS 14 TO 34 FT...HIGHEST S AND
SW OF SECOND CENTER. AND FROM 31N TO 38N BETWEEN 160W AND A
31N145W TO 38N130W LINE WINDS LESS THAN 25 KT. SEAS 9 TO 19 FT
WITH NW SWELL.
.48 HOUR FORECAST LOW 54N150W 984 MB. FROM 48N TO 52N BETWEEN
150W AND 160W WINDS 35 TO 45 KT. SEAS 15 TO 25 FT. ELSEWHERE
WITHIN 420 NM N...300 NM E...720 NM S...AND 480 NM W QUADRANTS
WINDS 25 TO 40 KT. SEAS 10 TO 18 FT. ALSO FROM 30N TO 41N
BETWEEN 148W AND A 35N121W TO 30N128W LINE WINDS LESS THAN 25
KT. SEAS 8 TO 15 FT WITH NW SWELL.

...STORM WARNING...
.LOW 43N173W 1003 MB MOVING NE 40 KT. WITHIN 420 NM SE AND 540
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.
.24 HOUR FORECAST LOW 47N151W 992 MB. BETWEEN 120 NM AND 360 NM
S QUADRANT WINDS 35 TO 50 KT. SEAS 16 TO 27 FT. ELSEWHERE WITHIN
480 NM S AND SE...AND 720 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS
9 TO 20 FT...HIGHEST SW OF LOW.
.48 HOUR FORECAST LOW 54N137W 997 MB. WITHIN 360 NM E SEMICIRCLE
AND N QUADRANT WINDS 25 TO 40 KT. SEAS 14 TO 20 FT. ELSEWHERE
WITHIN 120 NM E OF A FRONT FROM 50N130W TO 48N128W TO 43N133W
WINDS 20 TO 30 KT. SEAS 15 TO 17 FT.

...STORM WARNING...
.LOW 41N159E 1009 MB W OF AREA MOVING NE 10 KT. FROM 37N TO 42N
BETWEEN 160E AND 166E WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 42N163E 992 MB. BETWEEN 60 NM AND 240 NM N
QUADRANT AND WITHIN 300 NM SW QUADRANT WINDS 30 TO 40 KT. SEAS 8
TO 14 FT. ELSEWHERE FROM 33N TO 47N BETWEEN 160E AND 177E WINDS
20 TO 30 KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 45N172E 976 MB. WITHIN 360 NM SW
SEMICIRCLE WINDS 35 TO 50 KT. SEAS 16 TO 30 FT. ELSEWHERE WITHIN
120 NM N AND NE OF A FRONT FROM 50N171E TO 49N180W TO 45N174W
WINDS 35 TO 45 KT. SEAS 9 TO 15 FT. ALSO WITHIN 660 NM NE...900
NM SE...600 NM SW...AND 480 NM NW QUADRANTS WINDS 25 TO 35 KT.
SEAS 11 TO 20 FT.

.SYNOPSIS AND FORECAST.

.FROM 31N TO 39N BETWEEN 122W AND 125W AREA OF N WINDS TO 25 KT.
SEAS TO 10 FT.
.12 HOUR FORECAST CONDITIONS DIMINISHED.

.LOW 54N161W 990 MB MOVING N 5 KT. BETWEEN 180 NM AND 300 NM S
QUADRANT WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 57N162W 998 MB WITH CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS WITHIN 300 NM NE OF A LINE FROM 49N150W TO 42N139W.
.24 HOUR FORECAST CONDITIONS IMPROVED.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 30N TO 44N BETWEEN 175E AND 164E.
.48 HOUR FORECAST DENSE FOG FROM 33N TO 48N BETWEEN 172W AND
178E.

.HIGH 46N124W 1021 MB MOVING E 15 KT.
.24 HOUR FORECAST HIGH INLAND.

.HIGH 34N164W 1026 MB MOVING E 35 KT.
.24 HOUR FORECAST HIGH 34N142W 1025 MB.
.48 HOUR FORECAST HIGH 38N129W 1027 MB.

.HIGH 40N172E 1022 MB MOVING SE 30 KT.
.24 HOUR FORECAST HIGH 37N172W 1027 MB.
.48 HOUR FORECAST HIGH 36N163W 1030 MB.

.HIGH 32N179W 1027 MB MOVING NE 20 KT.
.24 HOUR FORECAST HIGH MERGED WITH HIGH 37N172W.

.FORECASTER CLARK. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

E PACIFIC FROM THE EQUATOR TO 30N E OF 140W AND 3.4S TO THE
EQUATOR E OF 120W

SYNOPSIS VALID 1800 UTC FRI APR 18.
24 HOUR FORECAST VALID 1800 UTC SAT APR 19.
48 HOUR FORECAST VALID 1800 UTC SUN APR 20.

.WARNINGS.

...GULF OF TEHUANTEPEC GALE WARNING...

.06 HOUR FORECAST GULF OF TEHUANTEPEC N WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.12 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO
14.5N95W...
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS 9
TO 12 FT. ELSEWHERE WITHIN 45 NM OF LINE FROM 16N95W TO 13N95.5W
N WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 13N95.5W...
INCLUDING THE GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 30 KT.
SEAS 8 TO 10 FT.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.FROM 07N TO 18N W OF 137W WINDS 20 KT OR LESS. SEAS TO 8 FT
PRIMARILY IN MIXED NW...NE AND S SWELL.
.24 HOUR FORECAST FROM 07N TO 21N W OF 137W WINDS 20 KT OR LESS.
SEAS TO 8 FT PRIMARILY IN MIXED NW...NE AND S SWELL.
.48 HOUR FORECAST FROM 06N TO 15N W OF 135W WINDS 20 KT OR LESS.
SEAS TO 8 FT PRIMARILY IN MIXED NW AND SE SWELL.

.N OF 29N BETWEEN 121W AND 125W WINDS 20 KT OR LESS. SEAS TO 8
FT IN MIXED NW AND S SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST NW OF A LINE FROM 30N136W TO 28N140W WINDS 20
KT OR LESS. SEAS TO 9 FT PRIMARILY IN MIXED NW AND SE SWELL.
.48 HOUR FORECAST NW OF A LINE FROM 30N126W TO 25N140W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT PRIMARILY IN MIXED NW AND SE SWELL.

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

CONVECTION VALID 2100 UTC FRI APR 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 08N82W TO 06N90W. ITCZ FROM 06N90W TO 07N97W
05N111W TO 06N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 75
NM OF 05.5N78W...WITHIN 150 NM OF LINE FROM 07.5N84W TO 03N107W
AND WITHIN 120 NM OF LINE FROM 08N120W TO 04.5N132W. ISOLATED
MODERATE TO STRONG WITHIN 90 NM OF LINE FROM 13N108W TO 03N110W
TO 04N117W AND FROM 02N TO 07N W OF 135W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.



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