High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 130940
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC WED DEC 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC DEC 13.
24 HOUR FORECAST VALID 0600 UTC DEC 14.
48 HOUR FORECAST VALID 0600 UTC DEC 15.

.WARNINGS.

...GALE WARNING...
.LOW JUST NW OF AREA NEAR 52N163E 981 MB MOVING SE 10 KT. FRONT
EXTENDS FROM LOW TO 53N167E TO 46N179W. OVER FORECAST WATERS
WITHIN 240 NM NE OF FRONT...AND N OF 39N W OF 171E WINDS 25 TO
40 KT. SEAS 10 TO 24 FT...HIGHEST NEAR 45N160E.
.24 HOUR FORECAST LOW 49N168E 975 MB. FROM 39N TO 50N BETWEEN
175E AND 160E...AND N OF 50N W OF 163E WINDS 25 TO 40 KT. SEAS
12 TO 24 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N171W
DESCRIBED BELOW.

...GALE WARNING...
.LOW 36N172E 1010 MB MOVING NE 30 KT. FROM 31N TO 41N BETWEEN
172W AND 171E WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST LOW 39N172W 1006 MB. FROM 31N TO 39N BETWEEN
164W AND 176W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 54N171W
DESCRIBED BELOW.

...GALE WARNING...
.LOW 33N161E 1010 MB MOVING NE 40 KT. OVER FORECAST WATERS
WITHIN 120 NM SE QUADRANT WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST LOW 36N170E 1006 MB. WITHIN 240 NM S AND SE
QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW 39N179W 1002 MB. FROM 31N TO 39N BETWEEN
176W AND 169E WINDS 25 TO 35 KT. SEAS 9 TO 17 FT.
.48 HOUR FORECAST LOW DISSIPATED. WITHIN 420 NM S OF A LINE FROM
45N161W TO 40N170W AREA OF SW WINDS 25 TO 35 KT. SEAS 8 TO 16 FT.

...GALE WARNING...
.LOW 55N154W 992 MB MOVING NW 30 KT. FROM 51N TO 61N BETWEEN
130W AND 149W...AND WITHIN 360 NM E AND NE QUADRANTS WINDS 25 TO
35 KT. SEAS 10 TO 18 FT.
.24 HOUR FORECAST LOW MOVED JUST N OF AREA 66N167W 991 MB. OVER
FORECAST WATERS WITHIN 240 NM S QUADRANT WINDS TO 25 KT. SEAS
LESS THAN 8 FT.
.48 HOUR FORECAST LOW AND CONDITIONS MOVED N OF AREA.

...GALE WARNING...
.LOW 40N145W 1000 MB MOVING N 50 KT. FROM 30N TO 51N BETWEEN
135W AND 145W WINDS 25 TO 40 KT. SEAS 12 TO 22 FT. ALSO FROM 30N
TO 40N BETWEEN 145W AND 168W WINDS TO 25 KT. SEAS 14 TO 21 FT.
.24 HOUR FORECAST LOW 60N144W 1003 MB. WITHIN 120 NM E OF A LINE
FROM 59N141W TO 55N137W TO 52N136W WINDS 35 TO 45 KT. SEAS 17 TO
23 FT. ELSEWHERE N OF 41N BETWEEN 138W AND 141W WINDS 25 TO 35
KT. SEAS 12 TO 18 FT.
.48 HOUR FORECAST LOW MOVED INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.24 HOUR FORECAST LOW 44N176E 987 MB. FROM 39N TO 46N BETWEEN
180W AND 175E WINDS 25 TO 40 KT. SEAS 9 TO 16 FT.
.48 HOUR FORECAST 54N171W 968 MB. WITHIN 300 NM S QUADRANT...AND
WITHIN 120 NM NE OF FRONT FROM LOW TO 55N167W TO 52N159W TO
46N159W WINDS 35 TO 45 KT. SEAS 12 TO 24 FT. ELSEWHERE FROM 45N
TO 61N BETWEEN 157W AND 180W...WITHIN 480 NM E OF FRONT...WITHIN
660 NM SW QUADRANT...AND FROM 36N TO 46N BETWEEN 148W AND 161W
WINDS 25 TO 40 KT. SEAS 9 TO 18 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 54N178E 981 MB. OVER FORECAST WATERS
WITHIN 300 NM N SEMICIRCLE...AND WITHIN 240 NM E AND NE OF A
FRONT FROM LOW TO 55N178W TO 49N175W WINDS 25 TO 35 KT. SEAS 8
TO 15 FT.
.48 HOUR FORECAST LOW 55N174E 980 MB. N OF 54N BETWEEN 175E AND
169E...N OF 56N W OF 180W WINDS 25 TO 40 KT. SEAS 10 TO 18 FT.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 34N165E 1004 MB. FROM 30N TO 34N
BETWEEN 169E AND 160E WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 40N179W 991 MB. FROM 30N TO 40N BETWEEN
170W AND 165E WINDS 25 TO 40 KT. SEAS 11 TO 22 FT. ALSO OVER
FORECAST WATERS W OF A LINE FROM 40N180W TO 45N180W TO 52N164E
WINDS 25 TO 35 KT. SEAS 9 TO 18 FT...EXCEPT WHERE NOTED ABOVE.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
NW OF A LINE FROM 60N175W TO 62N172W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY NW OF A LINE
FROM 62N173W TO 65N168W.
.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 62N W OF
168W.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MEAN CENTER NEAR 52N161W 991 MB MOVING E 10
KT. FROM 40N TO 54N BETWEEN 158W AND 170W WINDS 20 TO 30 KT.
SEAS 10 TO 20 FT.
.24 HOUR FORECAST COMPLEX LOW WITH MEAN CENTER NEAR 53N158W 997
MB. FROM 47N TO 55N BETWEEN 150W AND 160W WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW 58N148W 1003 MB. FROM 47N TO 58N BETWEEN
129W AND 146W...AND WITHIN 240 NM S QUADRANT WINDS 20 TO 30 KT.
SEAS 8 TO 14 FT...EXCEPT WHERE NOTED ABOVE IN WARNINGS SECTION.

.LOW 59N162W 991 MB MOVING N 20 KT. FROM 54N TO 63N BETWEEN 164W
AND 176W WINDS TO 25 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW AND CONDITIONS MERGED WITH LOW 66N167W
DESCRIBED ABOVE IN WARNINGS SECTION.

.FROM 30N TO 37N BETWEEN 120W AND 127W WINDS LESS THAN 25 KT.
SEAS TO 8 FT.
.FROM 32N TO 44N BETWEEN 121W AND 127W WINDS LESS THAN 25 KT.
SEAS TO 9 FT.
.48 HOUR FORECAST FROM 34N TO 44N BETWEEN 123W AND 130W WINDS
LESS THAN 25 KT. SEAS TO 11 FT.

.48 HOUR FORECAST FROM 30N TO 36N BETWEEN 141W AND 151W AREA OF
NE WINDS TO 25 KT. SEAS TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 37N TO 51N
BETWEEN 135W AND 145W...FROM 51N TO 56N BETWEEN 143W AND
147W...AND FROM 34N TO 41N BETWEEN 177E AND 170E.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 53N BETWEEN 133W AND
140W...AND WITHIN 120 NM OF 41N175W.
.48 HOUR FORECAST DENSE FOG FROM 45N TO 51N BETWEEN 131W AND
134W...WITHIN 180 NM SE OF A LINE FROM 45N170W TO 39N177W...AND
WITHIN 90 NM OF 163W.

.HIGH 38N130W 1026 MB MOVING SW 05 KT.
.24 HOUR FORECAST HIGH 36N131W 1026 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.24 HOUR FORECAST NEW HIGH 35N154W 1022 MB.
.48 HOUR FORECAST HIGH 42N141W 1034 MB.

.FORECASTER KELLS. 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 WED DEC 13.
24 HOUR FORECAST VALID 0600 UTC THU DEC 14.
48 HOUR FORECAST VALID 0600 UTC FRI DEC 15.

.WARNINGS.

...GALE WARNING...
.WITHIN 30 NM OF LINE FROM 16N95W TO 14N96W...INCLUDING GULF OF
TEHUANTEPEC...N TO NE WINDS 30 TO 35 KT. SEAS 10 TO 15 FT.
ELSEWHERE WITHIN 75 NM OF LINE FROM 16N95W TO 12.5N97W N TO NE
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER AREA FROM 04N TO
12N BETWEEN 95W AND 112W WINDS 20 KT OR LESS. SEAS TO 10 FT IN
NE SWELL.
.12 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 14N95.5W
TO 12.5N98W...INCLUDING GULF OF TEHUANTEPEC...N TO NE WINDS 20
TO 30 KT. SEAS 9 TO 12 FT. ELSEWHERE FROM 10N TO 14N BETWEEN 94W
AND 101W WINDS 20 KT OR LESS. SEAS TO 10 FT IN NE SWELL.
.24 HOUR FORECAST GULF OF TEHUANTEPEC N OF 14.5N BETWEEN 94.5W
AND 95.5W N WINDS 20 TO 25 KT. SEAS TO 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.WITHIN 45 NM OF LINE FROM 11N86W TO 09N90W...INCLUDING GULF
OF PAPAGAYO...NE WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.NW OF LINE FROM 30N137W TO 26N140W S WINDS 20 TO 25 KT. SEAS 8
TO 12 FT. ELSEWHERE W OF LINE FROM 30N121W TO 13N120W TO 04N140W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN NW SWELL.
.24 HOUR FORECAST W OF LINE FROM 30N132W TO 19N137W WINDS 20 KT
OR LESS. SEAS 8 TO 13 FT IN NW SWELL. FROM 12N TO 19N W OF 123W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT PRIMARILY IN NW SWELL.
.48 HOUR FORECAST W OF LINE FROM 30N119W TO 15N123W TO 03N140W
WINDS 20 KT OR LESS. SEAS 8 TO 12 FT PRIMARILY IN NW SWELL.

.GULF OF CALIFORNIA N OF 30N NW WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST N OF 29N NW WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.

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

CONVECTION VALID AT 0900 UTC WED DEC 13...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 09N79W TO 09N86W TO 05N94W. ITCZ FROM 05N94W
TO 09N118W TO 09N140W. SCATTERED MODERATE ISOLATED STRONG FROM
08N TO 13N BETWEEN 111W AND 138W.

$$
.FORECASTER MUNDELL. NATIONAL HURRICANE CENTER.


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