High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 201538
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC SAT JAN 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

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 1200 UTC JAN 20.
24 HOUR FORECAST VALID 1200 UTC JAN 21.
48 HOUR FORECAST VALID 1200 UTC JAN 22.

.WARNINGS.

...STORM WARNING...
.LOW 40N150W 1012 MB MOVING E 35 KT. FRONT EXTENDS NE FROM LOW
TO 44N138W TO 48N132W AND SW FROM LOW TO 35N160W. WITHIN 300 NM
SE OF FRONT WINDS 30 TO 45 KT. SEAS 11 TO 19 FT. ELSEWHERE OVER
FORECAST WATERS WITHIN 420 NM SE AND S OF FRONT WINDS 20 TO 30
KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW DISSIPATED. FRONT TO EXTEND FROM 49N126W
TO 40N132W TO 35N146W. WITHIN 120 NM E OF FRONT N OF 40N WINDS
40 TO 50 KT. SEAS 16 TO 27 FT. ELSEWHWERE WITHIN 240 NM E AND SE
OF FRONT WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH COMPLEX LOW IN
SECOND GALE WARNING BELOW.

...STORM WARNING...
.36 HOUR FORECAST LOW 37N161E 1004 MB. OVER FORECAST WATERS
WITHIN 180 NM W AND SW QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14
FT.
.48 HOUR FORECAST LOW 38N167E 997 MB. FROM 36N TO 39N BETWEEN
163E AND 167E WINDS 40 TO 50 KT. SEAS 16 TO 23 FT. ELSEWHERE
FROM 30N TO 42N BETWEEN 160E AND 178E WINDS 25 TO 40 KT. SEAS 9
TO 17 FT.

...GALE WARNING...
.LOW 48N167E 976 MB MOVING NW 20 KT. OVER FORECAST WATERS WITHIN
540 NM S AND SW AND 660 NM E AND NE QUADRANTS WINDS 30 TO 45 KT.
SEAS 16 TO 33 FT...HIGHEST S QUADRANT. ELSEWHERE W OF A LINE
FROM 35N176W TO 44N172W TO 58N176W WINDS 20 TO 30 KT. SEAS 10 TO
23 FT.
.24 HOUR FORECAST LOW NW OF AREA 54N161E 984 MB. FRONT TO EXTEND
FROM 54N170E TO 50N180W TO 44N167W TO 38N168W. WITHIN 540 NM S
QUADRANT AND 300 NM NE OF FRONT N OF 50N WINDS 25 TO 40 KT. SEAS
13 TO 23 FT. ELSEWHERE WITHIN 720 NM S QUADRANT AND 420 NM NE OF
FRONT...EXCEPT 300 NM NE AND E OF FRONT S OF 50N WINDS 20 TO 30
KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW WELL NW OF AREA. WITHIN 180 NM NE OF A
LINE FROM 57N174E TO 51N179W AND W OF A LINE FROM 45N169E TO
54N168E WINDS 20 TO 30 KT. SEAS 9 TO 17 FT.

...GALE WARNING...
.LOW 56N138W 996 MB MOVING NW 10 KT. WITHIN 120 NM NE SEMICIRCLE
WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 57N145W 990 MB. BETWEEN 180 NM AND 420 NM
W QUADRANT WINDS 25 TO 40 KT. SEAS 8 TO 17 FT.
.48 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER 57N147W. BETWEEN
240 NM AND 720 NM W QUADRANT WINDS 25 TO 40 KT. SEAS 8 TO 17 FT.
ELSEWHERE FROM 44N TO 60N E OF 169W WINDS 20 TO 30 KT. SEAS 8 TO
16 FT.

...GALE WARNING...
.LOW 51N145W 987 MB MOVING NE 15 KT. WITHIN 420 NM S AND SW
QUADRANTS WINDS 25 TO 40 KT. SEAS 17 TO 30 FT. ELSEWHERE FROM
43N TO 52N BETWEEN 162W AND A LINE FROM 43N143W TO 52N133W WINDS
20 TO 30 KT. SEAS 10 TO 23 FT.
.24 HOUR FORECAST LOW 53N136W 989 MB. WITHIN 660 NM S AND 720 NM
SW QUADRANTS WINDS 25 TO 35 KT. SEAS 11 TO 22 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH
COMPLEX LOW ABOVE.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER FORECAST WATERS N OF A
LINE FROM 57N156W TO 58N168W TO 63N173W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 56N155W TO 58N165W TO 63N173W.
.48 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 55N154W TO 54N159W TO 57N168W TO 63N173W.

.SYNOPSIS AND FORECAST.

.OVER FORECAST WATERS E OF A LINE FROM 30N129W TO 38N128W AREA
OF N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.24 HOUR FORECAST FROM 30N TO 35N E OF 123W AREA OF NW WINDS TO
25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 30N TO 35N BETWEEN 119W AND 122W AREA OF
NW TO N WINDS TO 25 KT. SEAS TO 10 FT.

.48 HOUR FORECAST NEW LOW 43N160W 1003 MB. FROM 36N TO 45N
BETWEEN 154W AND 169W WINDS 20 TO 30 KT. SEAS 10 TO 16 FT.

.HIGH 34N137W 1031 MB MOVING SE 15 KT.
.24 HOUR FORECAST HIGH 31N130W 1029 MB.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 44N167W 1025 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 41N155W 1023 MB.
.48 HOUR FORECAST HIGH 38N132W 1025 MB.

.HIGH 61N174W 1034 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST HIGH 59N176W 1032 MB.

.24 HOUR FORECAST HIGH 40N167E 1022 MB.
.48 HOUR FORECAST HIGH 46N176E 1029 MB.

.FORECASTER KOSIER. 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 SAT JAN 20.
24 HOUR FORECAST VALID 1200 UTC SUN JAN 21.
48 HOUR FORECAST VALID 1200 UTC MON JAN 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. S OF
12N BETWEEN 90W AND 100W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED NE AND NW SWELL.
.24 HOUR FORECAST N OF 14N BETWEEN 94.5W AND 95.5W...INCLUDING
GULF OF TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
S OF 10N BETWEEN 93W AND 100W WINDS 20 KT OR LESS. SEAS 8 FT IN
MIXED NE AND NW SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.DISSIPATING COLD FRONT FROM 29.5N115.5W TO 19N140W. NW OF FRONT
TO 130W AND N OF 10N W OF 130W N TO NE WINDS 20 TO 30 KT. SEAS
10 TO 15 FT. ELSEWHERE OPEN WATERS N OF 05N W OF 100W WINDS 20
KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. FROM 10N TO 22N W OF
125W NE WINDS 20 TO 25 KT. SEAS 9 TO 13 FT. FROM 23N TO 26N E OF
115W N WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE OVER OPEN
WATERS W OF 100W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED
SWELL.
.48 HOUR FORECAST FROM 10N TO 20N W OF 120W NE TO E WINDS 20 TO
25 KT. SEAS 9 TO 12 FT. ELSEWHERE N OF 07N W OF 100W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10N87W...INCLUDING GULF OF
PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.GULF OF CALIFORNIA COLD FRONT FROM 31N113W TO 30N115W. WITHIN
30 NM SE OF FRONT SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. N
OF FRONT NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST DISSIPATING COLD FRONT FROM 25N109W TO
24N110W. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST GULF OF CALIFORNIA FROM 23.5N TO 27.5N NW
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST GULF OF CALIFORNIA FROM 23.5N TO 27N NW WINDS
20 TO 25 KT. SEAS TO 8 FT. FROM 18N TO 23.5N BETWEEN 105W AND
109W NW TO N WINDS 20 TO 25 KT. SEAS TO 9 FT.

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

CONVECTION VALID AT 1500 UTC SAT JAN 20...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
SURFACE TROUGH FROM 08N78W TO 05N86W TO 07N98W. ITCZ FROM 07N98W
TO 09N122W THEN RESUMES FROM 08N131W TO BEYOND 08N140W.
SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM N OF ITCZ
BETWEEN 100W AND 102W. SCATTERED MODERATE ISOLATED STRONG WITHIN
60 NM N OF ITCZ BETWEEN 110W AND 114W. SCATTERED MODERATE
ISOLATED STRONG CONVECTION FROM 08N TO 12N BETWEEN 114W AND
127W.

$$
.FORECASTER AL. NATIONAL HURRICANE CENTER.


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