High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 180405
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC SAT NOV 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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 NOV 18.
24 HOUR FORECAST VALID 0000 UTC NOV 19.
48 HOUR FORECAST VALID 0000 UTC NOV 20.

.WARNINGS.

...STORM WARNING...
.LOW NW OF AREA 59N165E 997 MB MOVING NE 25 KT WILL TURN SE
AFTER 24 HOURS. BETWEEN 173E AND A LINE FROM 58N175W TO 42N179W
TO 30N175W...ALSO WITHIN 240 NM W OF A FRONT FROM 44N171E TO
35N168E TO 30N163E WINDS 25 TO 35 KT. SEAS 9 TO 18 FT. ELSEWHERE
OVER FORECAST WATERS WITHIN 600 NM S QUADRANT WINDS TO 25 KT.
SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW INLAND NW OF AREA 66N178W 990 MB. WITHIN
780 NM S AND 420 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 16
FT.
.42 HOUR FORECAST LOW 63N164W 985 MB. WITHIN 420 NM S AND SW
QUADRANTS WINDS 40 TO 50 KT. SEAS 16 TO 28 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 57N150W 972 MB.
WITHIN 120 NM W SEMICIRCLE...AND WITHIN 300 NM SW OF A LINE FROM
62N168W TO 54N150W WINDS 40 TO 50 KT. SEAS 16 TO 30 FT...EXCEPT
W SEMICIRCLE SEAS 8 TO 16 FT. ELSEWHERE WITHIN 300 NM N AND
E...660 NM S...780 NM SW AND 840 NM NW QUADRANTS WINDS 25 TO 40
KT. SEAS 8 TO 22 FT...HIGHEST SW AND NW QUADRANTS.

...STORM WARNING...
.LOW 42N145W 1010 MB MOVING NE 30 KT AND INTENSIFYING. WITHIN
300 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT.
.12 HOUR FORECAST LOW 47N139W 1004 MB. WITHIN 240 NM SE
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 52N131W 996 MB. FRONT TO EXTEND FROM THE
LOW TO 40N138W. WITHIN 120 NM E AND SE QUADRANTS WINDS 35 TO 50
KT. SEAS 12 TO 20 FT. ELSEWHERE BETWEEN THE FRONT AND A LINE
FROM 52N128W TO 48N125W TO 40N134W WINDS 25 TO 35 KT. SEAS 8 TO
17 FT.
.48 HOUR FORECAST LOW WELL INLAND. FRONT TO EXTEND FROM 46N124W
TO 40N132W. WITHIN 120 NM E OF THE FRONT WINDS 30 TO 45 KT. SEAS
10 TO 20 FT. ELSEWHERE BETWEEN THE FRONT AND 124W WINDS 20 TO 30
KT. SEAS 8 TO 12 FT.

...STORM WARNING...
.24 HOUR FORECAST BETWEEN 160E AND A LINE FROM 51N163E TO
41N165E TO 36N161E WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.36 HOUR FORECAST LOW NW OF AREA 51N152E 960 MB. OVER FORECAST
WATERS WITHIN 420 NM SE QUADRANT WINDS 40 TO 50 KT. SEAS 16 TO
28 FT.
.48 HOUR FORECAST LOW WELL NW OF AREA. CONDITIONS DESCRIBED
BELOW WITH LOW 48N168E.

...GALE WARNING...
.LOW 57N141W 989 MB MOVING SE 10 KT. WITHIN THE REGION BOUNDED
BY A LINE FROM 60N153W TO 55N163W TO 49N154W TO 55N146W TO
60N149W TO 60N153W WINDS 30 TO 45 KT. SEAS 9 TO 18 FT. ELSEWHERE
WITHIN 180 NM NE QUADRANT WINDS 25 TO 35 KT. SEAS TO 12 FT. ALSO
WITHIN 780 NM W AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 13
FT.
.24 HOUR FORECAST LOW 54N140W 999 MB. WITHIN 900 NM SW AND 420
NM W QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

...GALE WARNING...
.LOW 37N154W 1010 MB MOVING S 20 KT. WITHIN 600 NM NW SEMICIRCLE
WINDS 25 TO 40 KT. SEAS 12 TO 24 FT.
.24 HOUR FORECAST LOW 30N155W 1006 MB. WITHIN 600 NM N AND NW
QUADRANTS WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST LOW 31N151W 1004 MB. N OF 30N BETWEEN 120 NM
AND 420 NM NW SEMICIRCLE WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.
ELSEWHERE WITHIN 480 NM N AND 900 NM W QUADRANTS WINDS 20 TO 30
KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.LOW 56N136W 991 MB MOVING N 10 KT. WITHIN 300 NM SE QUADRANT
WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE WITHIN 600 NM S
QUADRANT WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED ABOVE
WITH LOW 52N131W.

...GALE WARNING...
.24 HOUR FORECAST LOW 31N171E 1010 MB. WITHIN 1020 NM N...600 NM
NE AND 480 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW MOVED S OF AREA. BETWEEN A LINE FROM
40N169E TO 30N173E AND ANOTHER LINE FROM 40N175E TO 30N176W
WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.

...GALE WARNING...
.48 HOUR FORECAST NEW LOW 48N168E 1013 MB. WITHIN 480 NM E
SEMICIRCLE WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.

.SYNOPSIS AND FORECAST.

.48 HOUR FORECAST FRONT TO EXTEND FROM 51N163E TO 42N163E TO
36N160E. BETWEEN 160E AND THE FRONT WINDS 20 TO 30 KT. SEAS 10
TO 20 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS BETWEEN 172E AND A LINE FROM 61N177W TO 51N179W TO
40N174E.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM E OF A LINE FROM
59N169W TO 48N178W.
.48 HOUR FORECAST DENSE FOG WITHIN 240 NM OF 47N171E.

.HIGH 41N127W 1027 MB MOVING S 10 KT.
.24 HOUR FORECAST HIGH 38N127W 1023 MB.
.48 HOUR FORECAST HIGH 32N124W 1020 MB.

.HIGH 46N171W 1040 MB MOVING S 10 KT.
.24 HOUR FORECAST HIGH 43N171W 1037 MB.
.48 HOUR FORECAST HIGH 43N174W 1038 MB.

.24 HOUR FORECAST HIGH 50N172E 1035 MB.
.48 HOUR FORECAST HIGH 49N174W 1040 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 0000 UTC SAT NOV 18.
24 HOUR FORECAST VALID 0000 UTC SUN NOV 19.
48 HOUR FORECAST VALID 0000 UTC MON NOV 20.

.WARNINGS.

...GALE WARNING...
.N OF 14.5N BETWEEN 94W AND 95.5W INLCUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.15 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.36 HOUR FORECAST N OF 14.5N BETWEEN 94W AND 95.5W INLCUDING THE
GULF OF TEHUANTEPEC...N WINDS INCREASING 20 TO 30 KT. SEAS
BUILDING TO 8 FT.
.42 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N96W
...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35 KT. SEAS
BUILDING 9 TO 11 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W
TO 13N96W N TO NE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST WITHIN 45 NM OF LINE FROM 16N95W TO 14N96W
...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 40 KT. SEAS
10 TO 13 FT. ELSEWHERE WITHIN 60 NM OF LINE FROM 16N95W TO
15N95W TO 13N97W N TO NE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW PRES NEAR 28N128W AND 38N132W 1017 MB WITH
DISSIPATING FRONT FROM LOW TO 25N130W TO 20N137W. N OF 29N
BETWEEN 130W AND 135W WINDS 20 KT OR LESS. SEAS 8 FT IN NW
SWELL.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.18 HOUR FORECAST GULF OF CALIFORNIA N OF 30N NW WINDS 20 TO 25
KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST GULF OF CALIFORNIA FROM 26N TO 29N NW WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST NW OF LINE 30N137W TO 27N140W S WINDS 20 TO 25
KT. SEAS TO 9 FT.
.48 HOUR FORECAST W OF A LINE FROM 30N136W TO 23N140W S WINDS 20
TO 25 KT. SEAS 8 TO 11 FT.

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

CONVECTION VALID AT 0300 UTC SAT NOV 18...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 09N84W TO 10N92W TO 09N105W
WHERE IT TRANSITIONS TO THE INTERTROPICAL CONVERGENCE ZONE...AND
EXTENDS THROUGH 11N125W TO BEYOND 11N140W. SCATTERED MODERATE
ISOLATED STRONG FROM 09N TO 11N W OF 137W. SCATTERED MODERATE IS
NOTED FROM 11N TO 14N BETWEEN 123W AND 127W.

$$
.FORECASTER COBB. NATIONAL HURRICANE CENTER.



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