High Seas Forecast
Issued by NWS

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251
FZPN01 KWBC 162207
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
2230 UTC SAT DEC 16 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC DEC 16.
24 HOUR FORECAST VALID 1800 UTC DEC 17.
48 HOUR FORECAST VALID 1800 UTC DEC 18.

.WARNINGS.

...STORM WARNING...
.OVER FORECAST WATERS W OF A LINE FROM 36N160E TO 50N170E WINDS
25 TO 40 KT. SEAS 8 TO 16 FT.
.18 HOUR FORECAST LOW 46N164E 986 MB AND RAPIDLY INTENSIFYING.
WITHIN 480 NM NE AND 360 NM SE QUADRANTS AREA OF S TO SW WINDS
40 TO 50 KT. SEAS 15 TO 27 FT.
.24 HOUR FORECAST LOW 53N169E 971 MB. FROM 40N TO 54N BETWEEN
180W AND 169E WINDS 40 TO 50 KT. SEAS 17 TO 31 FT. ALSO WITHIN
540 NM NE...960 NM SE...AND 1200 NM S QUADRANTS WINDS 25 TO 40
KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN 1320 NM S QUADRANT WINDS
20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW NW OF AREA 58N170E 951 MB. WITHIN 600 NM
SE SEMICIRCLE WINDS 40 TO 50 KT. SEAS 20 TO 33 FT. ALSO WITHIN
180 NM EITHER SIDE OF A LINE FROM 64N170W TO 61N167W TO 55N167W
TO 47N170W TO 43N174W WINDS 35 TO 45 KT. SEAS 18 TO 31
FT...EXCEPT 13 TO 24 FT FROM 64N170W TO 61N167W. ELSEWHERE
WITHIN 1260 NM SE AND 1020 NM S QUADRANTS WINDS 25 TO 40 KT.
SEAS 11 TO 22 FT.

...GALE WARNING...
.LOW 33N119W 1005 MB MOVING SE 15 KT. OVER FORECAST WATERS FROM
30N TO 42N BETWEEN 118W AND 130W AREA OF N TO NW WINDS 25 TO 40
KT. SEAS 10 TO 19 FT. WINDS AND SEAS HIGHEST FROM 31N TO 40N
BETWEEN 120W AND 126W.
.24 HOUR FORECAST LOW 30N116W 1006 MB. FROM 30N TO 42N BETWEEN
122W AND 130W AREA OF N WINDS 20 TO 30 KT. SEAS 8 TO 16 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 30N TO 32N BETWEEN 120W
AND 140W WINDS LESS THAN 25 KT. SEAS TO 8 FT.

...GALE WARNING...
.LOW 61N151W 987 MB DRIFTING W. OVER FORECAST WATERS WITHIN 120
NM NE OF A LINE FROM 55N134W TO 50N130W WINDS 30 TO 40 KT. SEAS
8 TO 14 FT. ELSEWHERE WITHIN 900 NM SE QUADRANT WINDS 20 TO 30
KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
58N150W BELOW.

...GALE WARNING...
.LOW 60N167W 975 MB MOVING S 10 KT AND WILL TURN SE AFTER 06
HOURS. EXCEPT AS DESCRIBED WITH LOW 56N165W BELOW...OVER
FORECAST WATERS N OF 55N BETWEEN 167W AND 179E AREA OF N TO NW
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW DISSIPATED. FROM 55N TO 62N BETWEEN 161W
AND 169W AREA OF NW WINDS 25 TO 35 KT. SEAS 10 TO 20 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 58N170E ABOVE.

...GALE WARNING...
.LOW 56N165W 978 MB MOVING NE 20 KT. WITHIN 420 NM SE AND
BETWEEN 180 NM AND 540 NM SW QUADRANTS WINDS 35 TO 45 KT. SEAS
15 TO 27 FT. ALSO WITHIN 480 NM E...720 NM SE AND 840 NM SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 11 TO 22 FT. ELSEWHERE WITHIN
960 NM SE AND 1020 NM SW QUADRANTS WINDS TO 25 KT. SEAS 8 TO 14
FT.
.24 HOUR FORECAST LOW 58N150W 994 MB. WITHIN 540 NM SW QUADRANT
WINDS 25 TO 40 KT. SEAS 15 TO 22 FT. ALSO WITHIN 660 NM SE AND
840 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 12 TO 20 FT.
ELSEWHERE WITHIN 360 NM NE...840 NM SE...AND 1020 NM SW
QUADRANTS WINDS TO 25 KT. SEAS 9 TO 18 FT.
.48 HOUR FORECAST LOW 57N139W 1010 MB. WITHIN 600 NM SW AND 480
NM NW QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 18 FT...HIGHEST SW
QUADRANT. ELSEWHERE WITHIN 120 NM NE AND 480 NM SE QUADRANTS
WINDS TO 25 KT. SEAS 8 TO 14 FT.

...GALE WARNING...
.WITHIN AN AREA BOUNDED BY 30N173E TO 33N173E TO 39N162W TO
30N175W TO 30N173E WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST WITHIN AN AREA BOUNDED BY 30N178E TO 39N163W
TO 39N154W TO 30N166W TO 30N178E WINDS 25 TO 40 KT. SEAS 12 TO
21 FT.
.48 HOUR FORECAST NEW LOW 35N151W 1013 MB. WITHIN 600 NM NE AND
W AND 360 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21 FT.
ELSEWHERE WITHIN AN AREA BOUNDED BY 30N180W TO 45N148W TO
46N136W TO 30N148W TO 30N180W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.

...HEAVY FREEZING SPRAY WARNING...
.LIGHT TO MODERATE FREEZING SPRAY OVER FORECAST WATERS N OF 63N
W OF 165W.
.24 HOUR MODERATE TO HEAVY FREEZING SPRAY N OF A LINE FROM
61N177W TO 61N173W TO 62N167W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE
FROM 63N167W TO 65N170W.

.SYNOPSIS AND FORECAST.

.WITHIN AN AREA BOUNDED BY 42N151W TO 50N141W TO 50N131W TO
46N129W TO 42N151W WINDS 20 TO 30 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST FROM 44N TO 47N BETWEEN 125W AND 136W WINDS TO
25 KT. SEAS TO 12 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.OVER FORECAST WATERS S OF 32N BETWEEN 140W AND 160W WINDS TO 25
KT. SEAS TO 12 FT.
.24 HOUR FORECAST S OF 33N BETWEEN 150W AND 160W WINDS TO 25 KT.
SEAS TO 10 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 35N151W IN
WARNINGS SECTION ABOVE.

.LOW NW OF AREA 57N165E 1003 MB MOVING NE 10 KT. EXCEPT AS
DESCRIBED IN WARNINGS SECTION ABOVE...OVER FORECAST WATERS
WITHIN 480 NM SE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
53N169E IN WARNINGS SECTION ABOVE.

.OVER FORECAST WATERS S OF A LINE FROM 37N165E TO 33N174E WINDS
TO 25 KT. SEAS TO 12 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED IN WARNINGS SECTION ABOVE.

.48 HOUR FORECAST...EXCEPT AS DESCRIBED IN WARNINGS SECTION
ABOVE...OVER FORECAST WATERS S OF 41N AND W OF 173E WINDS TO 25
KT. SEAS 8 TO 15 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS WITHIN 120 NM OF 49N141W AND FROM 44N TO 47N W OF 161E.
.24 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 51N173E TO 41N167E.
.48 HOUR FORECAST DENSE FOG N OF 60N BETWEEN 169W AND 174W.

.HIGH 39N135W 1035 MB MOVING S 05 KT.
.24 HOUR FORECAST HIGH 37N135W 1029 MB.
.48 HOUR FORECAST HIGH 39N131W 1027 MB.

.HIGH 40N176E 1030 MB MOVING E 20 KT.
.24 HOUR FORECAST HIGH 41N172W 1037 MB.
.48 HOUR FORECAST HIGH 45N161W 1036 MB.

.FORECASTER FIGURSKEY. 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 1800 UTC SAT DEC 16.
24 HOUR FORECAST VALID 1800 UTC SUN DEC 17.
48 HOUR FORECAST VALID 1800 UTC MON DEC 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.N OF 14.5N BETWEEN 94.5W AND 95.5W...INCLUDING GULF OF
TEHUANTEPEC...N TO NE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. FROM
08N TO 10N BETWEEN 97W AND 101W WINDS 20 KT OR LESS. SEAS TO 8
FT IN MIXED NE AND NW SWELL.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.42 HOUR FORECAST N OF 14.5N BETWEEN 94W AND 95W...INCLUDING
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.N OF 28N BETWEEN 119W AND 128W NW TO N WINDS 20 TO 25 KT. SEAS
9 TO 11 FT. N OF 28N W OF 128W N TO NE WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. FROM 13N TO 16N W OF 133W NE WINDS 20 TO 25 KT. SEAS 8
TO 10 FT. ELSEWHERE W OF LINE FROM 30N116W TO 24N117W TO 02N140W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN NW SWELL.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 28N115W TO 25N120W.
N OF 28N BETWEEN 122W AND 128W N WINDS 20 TO 25 KT. SEAS 12 TO
15 FT. ELSEWHERE W OF LINE FROM 30N116W TO 26N114W TO 20N130W TO
10N124W TO 10N109W TO 03.4S118W WINDS 20 KT OR LESS. SEAS 8 TO
11 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST FRONT DISSIPATED N OF 20N W OF 113W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN NW TO N SWELL. FROM 10N TO 20N W
OF 135W WINDS 20 KT OR LESS. SEAS 8 FT IN MIXED NW AND NE SWELL.

.GULF OF CALIFORNIA N OF 30N S TO SW WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST WEAKENING COLD FRONT FROM 31N113W TO
29.5N114W. N OF 30N NW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST FRONT DISSIPATED. WINDS 20 KT OR LESS. SEAS
LESS THAN 8 FT.

.12 HOUR FORECAST FROM 10N TO 12N E OF 89W...INCLUDING THE GULF
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 10N TO 12N E OF 88W...INCLUDING THE GULF
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 10N TO 12N E OF 89W...INCLUDING THE GULF
OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
FROM 08N TO 10N BETWEEN 90W AND 92W WINDS 20 KT OR LESS. SEAS 8
FT IN NE SWELL.

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

CONVECTION VALID AT 2100 UTC SAT DEC 16...

.SCATTERED MODERATE ISOLATED STRONG WITHIN 30 NM EITHER SIDE OF
LINE FROM 18N104W TO 14N114W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ FROM 07N94W TO BEYOND 10N140W. SCATTERED MODERATE ISOLATED
STRONG FROM 07N TO 09N BETWEEN 95W AND 111W.

$$

.FORECASTER AL. NATIONAL HURRICANE CENTER.



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