High Seas Forecast
Issued by NWS

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465
FZPN01 KWBC 191605 CCA
HSFEP1

HIGH SEAS FORECAST...CORRECTED
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC TUE SEP 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 19.
24 HOUR FORECAST VALID 1200 UTC SEP 20.
48 HOUR FORECAST VALID 1200 UTC SEP 21.

.WARNINGS.

...STORM WARNING...
.COMPLEX LOW WITH FIRST CENTER 45N174W 999 MB MOVING NW 10 KT
AND SECOND CENTER 40N177E 997 MB MOVING E 15 KT. WITHIN 420 NM
E... AND 540 NM N AND NW QUADRANTS OF FIRST CENTER...WITHIN 360
NM E OF A FRONT FROM FIRST CENTER TO 30N176W...AND WITHIN 420 NM
SW AND 480 NM NW QUADRANTS OF SECOND CENTER WINDS 25 TO 35 KT.
SEAS 9 TO 15 FT EXCEPT SW AND NW QUADRANTS OF SECOND CENTER 12
TO 20 FT.
.24 HOUR FORECAST COMPLEX LOW WITH FIRST CENTER 48N178W 986 MB
AND SECOND CENTER 40N175W 998 MB. WITHIN 120 NM W AND NW OF A
LINE FROM 47N180W TO 50N179W TO 53N171W WINDS 35 TO 50 KT. SEAS
14 TO 22 FT. ELSEWHERE WITHIN 660 NM NE...120 NM SE...300 NM SW
AND 420 NM NW QUADRANTS OF FIRST CENTER...WITHIN 360 NM S
SEMICIRCLE OF SECOND CENTER...AND WITHIN 240 NM E OF A FRONT
FROM 48N166W TO 40N165W TO 34N168W WINDS 25 TO 35 KT. SEAS 9 TO
15 FT.
.48 HOUR FORECAST LOW 49N177W 989 MB. WITHIN 360 NM S SEMICIRCLE
AND W QUADRANT...AND WITHIN 360 NM N OF A LINE FROM 52N177E TO
57N164W WINDS 25 TO 40 KT. SEAS 9 TO 17 FT. ELSEWHERE FROM 40N
TO 54N BETWEEN 152W AND 164W WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

...GALE WARNING...
.LOW 64N171W 1006 MB MOVING E 15 KT. OVER FORECAST WATERS WITHIN
300 NM S AND SE...AND 180 NM N AND NE QUADRANTS WINDS 25 TO 35
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW 63N163W 1012 MB. N OF 61N BETWEEN 165W AND
171W WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW INLAND AND ASSOCIATED CONDITIONS
DIMINISHED.

...GALE WARNING...
.LOW 46N136W 1012 MB MOVING SE 30 KT. WITHIN 360 NM S AND SW
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT.
.24 HOUR FORECAST LOW INLAND WITH A NEW LOW TO FORM NEAR 46N124W
1002 MB. WITHIN 600 NM W QUADRANT WINDS 25 TO 35 KT. SEAS 9 TO
15 FT.
.48 HOUR FORECAST LOW DISSIPATED INLAND. FROM 38N TO 54N BETWEEN
128W AND 136W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

...GALE WARNING...
.LOW 59N143W 1004 MB MOVING SE 25 KT. WITHIN 180 NM NE OF A LINE
FROM 57N157W TO 49N143W WINDS 25 TO 35 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST LOW DISSIPATED. WITHIN 60 NM NE OF A LINE FROM
59N153W TO 57N146W WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST CONDITIONS DIMINISHED.

.SYNOPSIS AND FORECAST.

.BOGOSLOF VOLCANO AT 53.92N 168.03W IS CURRENTLY IN A HEIGHTENED
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 49N125W 1009 MB MOVING E 10 KT. WITHIN 420 NM SW QUADRANT
WINDS 20 TO 30 KT. SEAS 10 TO 18 FT.
.24 HOUR FORECAST LOW DISSIPATED INLAND AND CONDITIONS DESCRIBED
WITH LOW 46N124W IN WARNINGS SECTION ABOVE.

.OVER FORECAST WATERS FROM 32N TO 39N BETWEEN 119W AND 125W AREA
OF NW WINDS TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST FROM 32N TO 36N BETWEEN 120W AND 125W AREA OF
N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.
.48 HOUR FORECAST FROM 32N TO 40N BETWEEN 119W AND 130W AREA OF
N TO NW WINDS TO 25 KT. SEAS TO 11 FT.

.LOW W OF AREA 42N157E 1009 MB MOVING SE 15 KT. OVER FORECAST
WATERS N OF 37N AND W OF 162E WINDS TO 25 KT. SEAS 9 TO 13 FT.
.24 HOUR FORECAST LOW 40N163E 1006 MB. WITHIN 180 NM NE
SEMICIRCLE AND FROM 34N TO 37N BETWEEN 167E AND 162E WINDS TO 25
KT. SEAS TO 11 FT.
.48 HOUR FORECAST LOW 38N175E 1012 MB. WITHIN 180 NM S AND SE
QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST LOW 38N163E 1008 MB. WITHIN 300 NM S QUADRANT
WINDS TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 49N
BETWEEN 150W AND 175W.
.24 HOUR FORECAST DENSE FOG FROM 40N TO 53N BETWEEN 150W AND
172W.
.48 HOUR FORECAST DENSE FOG WITHIN 480 NM OF 40N158W.

.HIGH 39N149W 1031 MB MOVING NW 5 KT.
.24 HOUR FORECAST HIGH 40N151W 1031 MB.
.48 HOUR FORECAST HIGH 42N148W 1033 MB.

.HIGH 56N166W 1027 MB MOVING SE 30 KT.
.24 HOUR FORECAST HIGH 49N148W 1029 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 53N175E 1025 MB MOVING NW 10 KT.
.24 HOUR FORECAST HIGH W OF AREA 55N169E 1019 MB.
.48 HOUR FORECAST HIGH 51N166E 1019 MB.

.HIGH 37N163E 1020 MB MOVING S 20 KT.
.24 HOUR FORECAST HIGH S OF AREA.

.FORECASTER CLARK. 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 SEP 19.
24 HOUR FORECAST VALID 1200 UTC WED SEP 20.
48 HOUR FORECAST VALID 1200 UTC THU SEP 21.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROPICAL DEPRESSION NORMA NEAR 21.6N 114.2W 1006 MB AT 1500 UTC
SEP 19 MOVING W OR 275 DEG AT 4 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. SEAS 12 FT OR GREATER WITHIN 60 NM N SEMICIRCLE
AND 30 NM S SEMICIRCLE WITH SEAS TO 14 FT. ELSEWHERE WITHIN 90
NM SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 10 TO 12 FT. REMAINDER
OF AREA FROM 20N TO 24N BETWEEN 113W AND 116W WINDS 20 KT OR
LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST TROPICAL DEPRESSION NORMA NEAR 22.2N 115.8W.
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. SEAS 12 FT OR GREATER
WITHIN 60 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH SEAS TO 13
FT. ELSEWHERE FROM 21N TO 24N BETWEEN 114W AND 117W WINDS 20 KT
OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.36 HOUR FORECAST POST-TROPICAL REMNANT LOW NORMA NEAR 22.8N
116.2W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.48 HOUR FORECAST...DISSIPATED.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.POST-TROPICAL CYCLONE OTIS NEAR 19.0N 128.6W 1006 MB AT 1500
UTC SEP 19 MOVING W OR 270 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT. SEAS 12 FT OR GREATER WITHIN 60 NM OF CENTER
WITH SEAS TO 14 FT. FROM 18N TO 22N BETWEEN 126W AND 130W NE
WINDS 25 TO 30 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 14N TO 27N W
OF 126W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW OTIS NEAR 17.7N
130.4W. WITHIN 90 NM NW QUADRANT WINDS 20 TO 25 KT. SEAS 9 TO 10
FT. FROM 18N TO 20N BETWEEN 129W AND 132W NE WINDS 20 TO 25 KT.
SEAS 8 TO 10 FT. ELSEWHERE FROM 16N TO 21N BETWEEN 128W AND 135W
WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN SE SWELL.
.36 HOUR FORECAST...DISSIPATED.

.FROM 06N TO 09N BETWEEN 101W AND 106W WINDS 20 KT OR LESS. SEAS
8 FT IN SE SWELL.
.24 HOUR FORECAST FROM 07N TO 10N BETWEEN 100W AND 115W WINDS 20
KT OR LESS. SEAS 8 FT IN SE SWELL.
.48 HOUR FORECAST FROM 07N TO 10N BETWEEN 107W AND 120W WINDS 20
KT OR LESS. SEAS 8 FT IN SE AND S SWELL.

.12 HOUR FORECAST N OF 29N W OF 130W WINDS 20 KT OR LESS. SEAS 8
TO 9 FT IN NW SWELL.
.24 HOUR FORECAST N OF 26N W OF 125W WINDS 20 KT OR LESS. SEAS 8
TO 10 FT IN NW SWELL.
.48 HOUR FORECAST N OF 22N BETWEEN 116W AND 130W  FROM 30N116W
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.

.36 HOUR FORECAST FROM 10N TO 14N BETWEEN 95W AND 100W SW WINDS
20 TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST FROM 10N TO 15N BETWEEN 95W AND 103W SW WINDS
20 TO 30 KT. SEAS 8 TO 11 FT.

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

CONVECTION VALID AT 1500 UTC TUE SEP 19...

.POST-TROPICAL CYCLONE OTIS...NO SIGNIFICANT
CONVECTION.

.TROPICAL DEPRESSION NORMA...SCATTERED MODERATE FROM
21N TO 22N BETWEEN 113W AND 115W.

.TROPICAL WAVE ALONG 93/96W S OF 21N...SCATTERED MODERATE
TO ISOLATED STRONG FROM 10N TO 16N BETWEEN 92W AND 102W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH FROM 10N85W TO 13N100W TO 12N120W TO 13N140W.
SCATTERED MODERATE FROM 03N TO 08N BETWEEN 77W AND 84W.
SCATTERED MODERATE TO ISOLATED STRONG 07N TO 12N BETWEEN 87W AND
91W. SCATTERED MODERTE TO ISOLATED STRONG FROM 12N TO 16N W
OF 137W.

$$
.FORECASTER FORMOSA. NATIONAL HURRICANE CENTER.



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