High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 211819
HSFEP1

HIGH SEAS FORECAST...CORRECTED FOR 24 HOUR GALE WARNING
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE FEB 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 1200 UTC FEB 21.
24 HOUR FORECAST VALID 1200 UTC FEB 22.
48 HOUR FORECAST VALID 1200 UTC FEB 23.

.WARNINGS.

...STORM WARNING...
.LOW W OF FORECAST AREA 40N158E 980 MB MOVING NE 25 KT WITH
SECOND LOW 45N163E 965 MB MOVING NE 25 KT. OVER FORECAST WATERS
WITHIN 180 NM EITHER SIDE OF A LINE FROM 45N175E TO 41N169E AND
WITHIN 240 NM EITHER SIDE OF A LINE FROM 41N169E TO 36N160E
WINDS 40 TO 55 KT. SEAS 22 TO 38 FT. ELSEWHERE W OF A LINE FROM
30N174E TO 41N178W TO 48N178W WINDS 25 TO 40 KT. SEAS 12 TO 24
FT.
.24 HOUR FORECAST FIRST LOW ABSORBED BY SECOND LOW 53N168E 949
MB. BETWEEN 180 NM AND 540 NM NE QUADRANT WINDS 45 TO 60 KT.
SEAS 18 TO 33 FT. ELSEWHERE WITHIN 180 NM EITHER SIDE OF A LINE
FROM 35N178W TO 43N174W TO 52N175W WINDS 40 TO 50 KT. SEAS 16 TO
32 FT. ALSO W OF A LINE FROM 30N174W TO 54N162W TO 57N167W WINDS
25 TO 40 KT. SEAS 12 TO 24 FT.
.48 HOUR FORECAST LOW NW OF FORECAST AREA 56N170E 959 MB. WITHIN
300 NM NE...360 NM SE...AND 480 NM SW QUADRANTS WINDS 40 TO 55
KT. SEAS 21 TO 35 FT. ALSO WITHIN 180 NM EITHER SIDE OF A LINE
FROM 31N170W TO 42N163W...240 NM EITHER SIDE OF A LINE FROM
42N163W TO 54N162W...AND 180 NM EITHER SIDE OF A LINE FROM
54N162W TO 63N169W WINDS 30 TO 45 KT...HIGHEST FROM 42N163W TO
54N162W. SEAS 13 TO 26 FT. ELSEWHERE WITHIN 480 NM NE...720 NM
SE...AND 1020 NM S QUADRANTS WINDS 25 TO 40 KT. SEAS 13 TO 26 FT.

...GALE WARNING...
.LOW 44N126W 1004 MB MOVING NE 20 KT. OVER FORECAST WATERS
WITHIN 180 NM SE QUADRANT WINDS 25 TO 35 KT. SEAS 8 TO 14 FT.
ELSEWHERE WITHIN 300 NM N AND S AND 360 NM SW QUADRANTS WINDS 20
TO 30 KT. SEAS TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED WITH NEW LOW 49N126W 1019 MB.
WITHIN 540 NM NW AND 480 NM W QUADRANTS AREA OF W TO NW WINDS 20
TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST LOW DISSIPATED. FROM 40N TO 46N BETWEEN 125W
AND 130W AREA OF N TO NW WINDS TO 25 KT. SEAS TO 12 FT.

...GALE WARNING...
.LOW 39N161W 1012 MB MOVING NE 20 KT. WITHIN 600 NM NW...480 NM
NE...360 NM SE...AND 420 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS
11 TO 22 FT.
.24 HOUR FORECAST LOW 41N152W 1016 MB. WITHIN 480 NM NW...300 NM
NE...AND 420 NM SE AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11
TO 22 FT.
.48 HOUR FORECAST LOW 38N150W 1020 MB. WITHIN 300 NM NW...360 NM
NE...BETWEEN 120 NM AND 480 NM SE...AND BETWEEN 120 NM AND 420
NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 11 TO 20 FT.

...GALE WARNING...
.LOW 55N169W 990 MB MOVING NE 15 KT. EXCEPT AS DESCRIBED WITH
LOW 39N161W ABOVE...WITHIN 120 NM EITHER SIDE OF A LINE FROM
59N179W TO 56N165W TO 46N159W WINDS 35 TO 45 KT. SEAS 15 TO 27
FT. ELSEWHERE WITHIN 420 NM NW...300 NM NE...780 NM SE...AND 720
NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS 13 TO 25 FT.
.24 HOUR FORECAST LOW 60N165W 1010 MB. OVER ICE FREE FORECAST
WATERS WITHIN 300 NM OF LOW WINDS 20 TO 30 KT. SEAS IN ICE FREE
WATERS 8 TO 15 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
56N170E ABOVE.

...GALE WARNING...
.LOW 54N169E 965 MB MOVING SW 20 KT. OVER FORECAST WATERS WITHIN
660 NM NE...600 NM SE...AND 180 NM SW QUADRANTS WINDS 30 TO 45
KT. SEAS 15 TO 27 FT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 53N168E
ABOVE.

...GALE WARNING...
.24 HOUR FORECAST NEW LOW 59N152W 1013 MB. WITHIN 180 NM E AND
420 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 16 FT.
.48 HOUR FORECAST LOW 54N136W 1020 MB. WITHIN 420 NM NW...360 NM
SW...AND 240 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.

...HEAVY FREEZING SPRAY WARNING...
.MODERATE TO HEAVY FREEZING SPRAY OVER ICE FREE FORECAST WATERS
N OF A LINE FROM 57N160W TO 57N162W AND N OF A LINE FROM 59N172W
TO 60N179W.
.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY N OF A LINE
FROM 58N172W TO 60N179W.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 54N168W IS IN A STATE OF UNREST. MARINERS
TRAVELING IN THE VICINITY OF BOGOSLOF VOLCANO ARE URGED TO
EXERCISE CAUTION. IF MARINERS ENCOUNTER ANY VOLCANIC
ASH...REPORT THE OBSERVATION TO THE OCEAN PREDICTION CENTER BY
CALLING 301-683-1520.

.LOW 38N140W 1020 MB MOVING SE 20 KT. FROM 34N TO 41N BETWEEN
140W AND 146W AREA OF W TO NW WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 36N130W 1024 MB. FROM 33N TO 37N BETWEEN
130W AND 136W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.48 HOUR FORECAST LOW DISSIPATED. OVER FORECAST WATERS E OF A
LINE FROM 40N129W TO 35N124W TO 30N123W AREA OF N TO NW WINDS 20
TO 30 KT. SEAS 8 TO 14 FT.

.LOW 35N132W 1020 MB MOVING E 20 KT. EXCEPT AS DESCRIBED WITH
LOWS 44N126W AND 38N140W ABOVE...FROM 30N TO 39N BETWEEN 121W
AND 140W WINDS TO 25 KT. SEAS 9 TO 18 FT.
.24 HOUR FORECAST LOW DISSIPATED. EXCEPT AS DESCRIBED WITH LOW
36N130W ABOVE...FROM 30N TO 41N E OF 130W WINDS TO 25 KT. SEAS 8
TO 14 FT.
.48 HOUR FORECAST CONDITIONS DESCRIBED OVER FORECAST WATERS
IMMEDIATELY ABOVE.

.LOW 60N146W 1008 MB MOVING SE 05 KT WITH SECOND LOW 59N142W
1009 MB MOVING SE 05 KT. FROM 54N TO 59N BETWEEN 136W AND 151W
WINDS 20 TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST FIRST LOW DISSIPATED WITH SECOND LOW 58N137W
1024 MB. WITHIN 180 NM OF LOW WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST LOW DISSIPATED. CONDITIONS DESCRIBED WITH LOW
54N136W IN WARNINGS SECTION ABOVE.

.LOW 43N137W 1012 MB MOVING SE 20 KT. WITHIN 300 NM W QUADRANT
WINDS TO 25 KT. SEAS TO 11 FT.
.24 HOUR FORECAST LOW AND CONDITIONS ABSORBED BY LOW 36N130W
ABOVE.

.48 HOUR FORECAST OVER FORECAST WATERS W OF A LINE FROM 34N160E
TO 41N163E WINDS 20 TO 30 KT. SEAS 9 TO 15 FT.

.48 HOUR FORECAST EXCEPT AS DESCRIBED IN WARNINGS SECTION ABOVE
FROM 30N TO 38N BETWEEN 166W AND 162E WINDS TO 25 KT. SEAS 10 TO
20 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 48N
BETWEEN 160W AND 162W AND FROM 42N TO 47N BETWEEN 174E AND 165E.
.24 HOUR FORECAST DENSE FOG WITHIN 180 NM EITHER SIDE OF A LINE
FROM 33N178W TO 50N174W TO 57N179E.
.48 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE
FROM 34N168W TO 43N166W TO 49N167W.

.HIGH 51N150W 1022 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 48N149W 1023 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 46N143W 1036 MB.
.48 HOUR FORECAST HIGH 46N145W 1038 MB.

.HIGH 32N152W 1030 MB MOVING E 25 KT.
.24 HOUR FORECAST HIGH DISSIPATED.

.HIGH 33N171W 1027 MB MOVING NE 15 KT.
.24 HOUR FORECAST HIGH 35N163W 1034 MB.
.48 HOUR FORECAST HIGH 33N160W 1031 MB.

.48 HOUR FORECAST HIGH 32N169E 1030 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 1200 UTC TUE FEB 21.
24 HOUR FORECAST VALID 1200 UTC WED FEB 22.
48 HOUR FORECAST VALID 1200 UTC THU FEB 23.

.WARNINGS.

...GALE WARNING...
.N OF 15N BETWEEN 94.5W AND 95.5W...INCLUDING THE GULF OF
TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WITHIN 30 NM EITHER SIDE OF LINE FROM 16N95W
TO 15N95W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 30 TO 35
KT. SEAS LESS THAN 8 FT. ELSEWHERE WITHIN 45 NM EITHER SIDE OF
LINE FROM 16N95W TO 15N45W TO 14.5N95.5W WINDS 20 TO 30 KT. SEAS
LESS THAN 8 FT.
.24 HOUR FORECAST WITHIN 45 NM EITHER SIDE OF LINE FROM 16N95W
TO 14.5N95W TO 13N96W N TO NE WINDS 20 TO 30 KT. SEAS 9 TO 12
FT. ELSEWHERE WITHIN AREA BOUNDED BY 16N95W TO 14N93.5W TO
11N96W TO 13N99W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED
NE AND NW SWELL.
.36 HOUR FORECAST FROM 10N TO 14N BETWEEN 94W AND 99W WINDS 20
KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE AND NW SWELL.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N125W TO 26N130W THEN STATIONARY TO 21N140W.
W OF FRONT WINDS 20 KT OR LESS. SEAS 10 TO 14 FT. ELSEWHERE N OF
LINE FROM 28N115W TO 24N119W TO 21N131W TO 14N140W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN NW SWELL.
.12 HOUR FORECAST WEAKENING COLD FRONT FROM 30N122W TO 26N130W
THE WEAKENING STATIONARY TO 21N140W. N OF LINE FROM 25N115W TO
08N119W TO 06N140W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN NW
SWELL.
.24 HOUR FORECAST FRONTS DISSIPATED. FROM 21N TO 23N W OF 137W
NE WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. ELSEWHERE AREA BOUNDED BY
LINE FROM 30N116W TO 25N114W TO 08N126W TO 06N140W TO 26N140W TO
28N135W TO 30N135W TO 30N116W WINDS 20 KT OR LESS. SEAS 8 TO 11
FT IN MIXED NW AND NE SWELL.
.48 HOUR FORECAST N OF 25W E OF 121W NW WINDS 20 TO 25 KT. SEAS
8 TO 11 FT. ELSEWHERE AREA BOUNDED BY LINE FROM 30N115W TO
23N110W TO 06N126W TO 08N140W TO 24N140W TO 24N128W TO 30N125W
TO 30N116W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED NW AND
NE SWELL.

.WITHIN 30 NM EITHER SIDE OF LINE FROM 27N111W TO
22N108W...INCLUDING THE GULF OF CALIFORNIA...NW TO N WINDS 20 TO
25 KT. SEAS TO 8 FT S PART. WITHIN AREA BOUNDED BY 20N133W TO
17N116W TO 23N110W TO 15N100W TO 05N108W TO 07N136W TO 20N133W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NW AND NE SWELL.
.12 HOUR FORECAST CONDITIONS MERGED WITH PARAGRAPH ABOVE.

.48 HOUR FORECAST GULF OF CALIFORNIA N OF 30N NW TO N 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 1500 UTC TUE FEB 21...

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

THERE IS NO ITCZ OVER THE FORECAST WATERS NORTH OF THE EQUATOR.
NO SIGNIFICANT CONVECTION.

$$

.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.


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