High Seas Forecast
Issued by NWS

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000
FZPN01 KWBC 181608
HSFEP1

HIGH SEAS FORECAST
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1630 UTC THU SEP 18 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PAN PAN

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

SYNOPSIS VALID 1200 UTC SEP 18.
24 HOUR FORECAST VALID 1200 UTC SEP 19.
48 HOUR FORECAST VALID 1200 UTC SEP 20.

.WARNINGS.

...HURRICANE FORCE WIND WARNING...
.LOW W OF FORECAST AREA 39N155E 996 MB MOVING NE 30 KT AND
RAPIDLY INTENSIFYING...WILL TURN N AFTER 12 HOURS. OVER FORECAST
WATERS WITHIN 600 NM NE AND 420 NM SE QUADRANTS WINDS 25 TO 35
KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW 50N160E 968 MB. FRONT TO EXTEND FROM
51N162E TO 45N169E TO 42N172E TO 39N166E TO 34N160E. WITHIN 120
NM S AND SE AND 180 NM NE QUADRANTS WINDS 50 TO 65 KT. SEAS 18
TO 30 FT. ALSO WITHIN 240 NM S AND SE AND 300 NM NE QUADRANTS
WINDS 35 TO 50 KT. SEAS 14 TO 26 FT. WITHIN 360 NM E AND SE
SEMICIRCLES AND 240 NM E OF THE FRONT N OF 42N WINDS 25 TO 40
KT. SEAS 9 TO 18 FT. ELSEWHERE WITHIN 180 NM SE OF THE FRONT S
OF 42N WINDS 20 TO 30 KT. SEAS TO 10 FT.
.48 HOUR FORECAST LOW NW OF FORECAST AREA 53N163E 975 MB. FRONT
TO EXTEND FROM 55N171E TO 50N175E TO 43N177W. OVER FORECAST
WATERS WITHIN 180 NM E AND 660 NM S QUADRANTS WINDS 25 TO 40 KT.
SEAS 10 TO 18 FT. ELSEWHERE WITHIN 540 NM NE...420 NM SE...AND
780 NM S QUADRANTS...AND 180 NM E OF THE FRONT WINDS 20 TO 30
KT. SEAS 9 TO 16 FT.

...GALE WARNING...
.LOW 55N146W 975 MB MOVING NE 15 KT WILL TURN NW AFTER 12 HOURS.
WITHIN 600 NM S...120 NM W...AND BETWEEN 240 NM AND 360 NM NE
QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 17 FT.
ELSEWHERE...EXCEPT WHERE NOTED BELOW...WITHIN 480 NM NE AND
E...660 NM S...AND 1020 NM W QUADRANTS WINDS 20 TO 30 KT. SEAS 8
TO 15 FT.
.24 HOUR FORECAST LOW 59N145W 981 MB. WITHIN 480 NM S AND SE
QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 21 FT. ELSEWHERE WITHIN
840 NM W QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW INLAND OVER ALASKA NEAR 65N145W 998 MB.
CONDITIONS DIMINISHED.

...GALE WARNING...
.OVER THE BERING SEA FROM 56N TO 62N BETWEEN 170W AND 178W AREA
OF N WINDS 25 TO 35 KT. SEAS TO 10 FT.
.24 HOUR FORECAST CONDITIONS DESCRIBED WITH LOW 59N145W ABOVE.

...GALE WARNING...
.LOW 41N160W 1014 MB MOVING NE 15 KT. WITHIN 180 NM SE
SEMICIRCLE WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 43N151W 1002 MB. WITHIN 180 NM SE OF A
FRONT FROM LOW CENTER TO 36N160W WINDS 25 TO 35 KT. SEAS 8 TO 14
FT.
.48 HOUR FORECAST LOW 54N136W 998 MB. FRONT TO EXTEND FROM LOW
CENTER TO 48N143W TO 36N148W. WITHIN 240 NM E QUADRANT AND 180
NM E OF THE FRONT WINDS 25 TO 40 KT. SEAS 9 TO 15 FT.

.SYNOPSIS AND FORECAST.

.LOW 39N126W 1003 MB MOVING SE 10 KT. WITHIN 240 NM SE
SEMICIRCLE AND 420 NM W QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 12
FT.
.24 HOUR FORECAST LOW 36N123W 1011 MB. WITHIN 360 NM W AND NW
QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW DISSIPATED. WITHIN 120 NM W OF A LINE FROM
39N124W TO 44N123W AREA OF N WINDS 20 TO 30 KT. SEAS TO 9 FT.

.48 HOUR FORECAST NEW LOW 42N175W 1009 MB. WITHIN 240 NM E AND
SE SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 10 FT.

.48 HOUR FORECAST NEW LOW 57N154W 1000 MB. WITHIN 420 NM W AND
SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. 24 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM
FROM 38N TO 42N BETWEEN 173E AND 170E.
.48 HOUR FORECAST DENSE FOG FROM 50N TO 54N BETWEEN 130W AND
133W.

.HIGH 35N152W 1020 MB MOVING NE 25 KT.
.24 HOUR FORECAST HIGH 38N137W 1020 MB.
.48 HOUR FORECAST HIGH DISSIPATED.

.HIGH 32N174E 1020 MB NEARLY STATIONARY.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.HIGH 48N168E 1023 MB MOVING SE 25 KT.
.24 HOUR FORECAST HIGH 41N175W 1023 MB.
.48 HOUR FORECAST HIGH 36N168W 1021 MB.

.36 HOUR FORECAST NEW HIGH 45N130W 1020 MB.
.48 HOUR FORECAST HIGH INLAND.

.FORECASTER ACHORN. 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 THU SEP 18.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 19.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 20.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE POLO NEAR 17.3N 105.7W 988 MB AT 1500 UTC SEP 18
MOVING NW OR 310 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 65 KT
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM E
SEMICIRCLE AND 60 NM W SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN
150 NM N SEMICIRCLE...180 NM SE QUADRANT AND 90 NM SW QUADRANT
WITH SEAS TO 24 FT. ELSEWHERE WITHIN 120 NM NW AND 240 NM SE
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER OF
AREA FROM 10N TO 20N BETWEEN 100W AND 109W WINDS 20 KT OR LESS.
SEAS 8 TO 10 FT IN SW SWELL.
.24 HOUR FORECAST HURRICANE POLO NEAR 18.7N 107.5W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS
WITHIN 80 NM E SEMICIRCLE AND 70 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 150 NM NE...120 NM SE...90 NM SW AND 120 NM NW
QUADRANTS WITH SEAS TO 27 FT. ELSEWHERE WITHIN 120 NM NE AND 180
NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER
OF AREA FROM 11N TO 21.5N BETWEEN 101W AND 111W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE POLO NEAR 20.4N 109.7W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM E SEMICIRCLE AND 80 NM W SEMICIRCLE. SEAS 12 FT OR
GREATER WITHIN 180 NM N SEMICIRCLE...120 NM SE AND 90 NM SW
QUADRANTS WITH SEAS TO 26 FT. ELSEWHERE WITHIN 150 NM NE AND 180
NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 11 FT. REMAINDER
OF AREA FROM 14N TO 23.5N BETWEEN 104W AND 114W WINDS 20 KT OR
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM POLO NEAR 21.5N 112.0W. MAXIMUM
SUSTAINED WINDS 55 KT GUSTS 65 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST TROPICAL STORM POLO NEAR 22.5N 114.0W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST TROPICAL STORM POLO NEAR 22.5N 116.0W.
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

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

.SYNOPSIS AND FORECAST.

.WEAKENING COLD FRONT FROM 30N125W TO 23N140W. NW OF FRONT WINDS
20 KT OR LESS. SEAS 8 TO 9 FT IN NW SWELL.
.24 HOUR FORECAST COLD FRONT DISSIPATED. WINDS 20 KT OR LESS.
SEAS LESS THAN 8 FT.

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

CONVECTION VALID 1500 UTC THU SEP 18...

.HURRICANE POLO...NUMEROUS MODERATE TO STRONG FROM 14N TO 20N
BETWEEN 102W AND 108W.

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 09N84W TO 08N90W TO 11N102W...THEN
RESUMES SW OF HURRICANE POLO NEAR 15N107W TO 11N124W. ITCZ FROM
11N124W TO 13N140W. SCATTERED MODERATE TO STRONG FROM 05N TO 09N
BETWEEN 84W TO 89W AND WITHIN 120 NM S OF AXIS FROM 100W TO 102W.

$$
.FORECASTER DGS. NATIONAL HURRICANE CENTER.



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