North Pacific High Seas Forecast

[Printable Version]   [Alt Link/Previous Versions]
FZPN01 KWBC 180949
HSFEP1

HIGH SEAS FORECAST 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1030 UTC WED JUL 18 2018 

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION 
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE). 

SECURITE 

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

SYNOPSIS VALID 0600 UTC JUL 18. 
24 HOUR FORECAST VALID 0600 UTC JUL 19. 
48 HOUR FORECAST VALID 0600 UTC JUL 20. 

.WARNINGS. 

...GALE WARNING... 
.FROM 35N TO 44N BETWEEN 124W AND 131W AREA OF N WINDS 20 TO 30
KT. SEAS TO 9 FT. 
.18 HOUR FORECAST FROM 41N TO 43N BETWEEN 124W AND 126W AREA OF 
N WINDS 25 TO 35 KT. SEAS 9 TO 13 FT
.24 HOUR FORECAST FROM 38N TO 43N BETWEEN 123W AND 128W AREA OF N
WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE FROM 35N TO 45N 
BETWEEN 123W AND 134W AREA OF N WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST FROM 38N TO 44N BETWEEN 124W AND 129W AREA OF N
WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE FROM 33N TO 47N
BETWEEN 124W AND 135W AREA OF N TO NE WINDS 20 TO 30 KT. SEAS 8 
TO 13 FT. 

...GALE WARNING... 
.LOW W OF AREA 39N153E 1007 MB MOVING NE 20 KT. OVER FORECAST
WATERS WITHIN 420 NM W OF A LINE FROM 36N162E TO 49N177E WINDS 
20 TO 30 KT. SEAS TO 10 FT.
.12 HOUR FORECAST LOW W OF AREA 42N157E 1007 MB. OVER FORECAST 
WATERS WITHIN 300 NM E AND NE QUADRANTS WINDS 25 TO 35 KT. SEAS 9
TO 14 FT. 
.24 HOUR FORECAST LOW 47N161E 1007 MB. WITHIN 240 NM E AND SE 
QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 
540 NM E AND SE SEMICIRCLES WINDS 20 TO 30 KT. SEAS TO 12 FT.
.48 HOUR FORECAST LOW 54N170E 1009 MB. BETWEEN 180 NM AND 360 NM 
NE QUADRANT...AND BETWEEN 300 NM AND 960 NM S AND SE QUADRANTS
WINDS TO 25 KT. SEAS TO 9 FT.

...GALE WARNING...
.FROM 48N TO 50N BETWEEN 126W AND 129W AREA OF NW WINDS TO 25 
KT. SEAS TO 8 FT.
.24 HOUR FORECAST FROM 47N TO 51N BETWEEN 126W AND 131W AREA OF 
NW WINDS 20 TO 30 KT. SEAS TO 9 FT.
.42 HOUR FORECAST FROM 49N TO 50N BETWEEN 126W AND 128W AREA OF 
NW WINDS 25 TO 35 KT. SEAS TO 11 FT.
.48 HOUR FORECAST FROM 48N TO 49N BETWEEN 125W AND 128W AREA OF 
NW WINDS 25 TO 35 KT. SEAS TO 11 FT. ELSEWHERE OVER FORECAST 
WATERS E OF A LINE FROM 47N130W TO 55N137W AREA OF NW WINDS TO 
25 KT. SEAS TO 9 FT.

.SYNOPSIS AND FORECAST. 

.LOW 55N173W 1008 MB MOVING SE 10 KT. BETWEEN 300 NM AND 600 NM 
S AND SW QUADRANTS...AND WITHIN 180 NM E OF A FRONT EXTENDING 
FROM 45N167W TO 52N166W TO 55N170W WINDS TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LOW 52N166W 1012 MB. BETWEEN 120 NM AND 360 NM 
NE...BETWEEN 360 NM AND 660 NM SE...AND BETWEEN 360 NM AND 600 
NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT.
.48 HOUR FORECAST LOW 50N162W 1012 MB. BETWEEN 240 NM AND 480 NM
N AND NE...AND BETWEEN 300 NM AND 600 NM S AND SW 
QUADRANTS...AND ALSO BETWEEN 300 NM AND 540 NM E AND SE 
SEMICIRCLES WINDS TO 25 KT. SEAS TO 9 FT.

.N OF 63N W OF 165W AREA OF SW WINDS TO 25 KT. SEAS LESS THAN 8 
FT.
.24 HOUR FORECAST CONDITIONS DIMINISHED.

.FROM 30N TO 34N BETWEEN 173W AND 160E AREA OF E WINDS TO 25 KT. 
SEAS TO 10 FT.
.24 HOUR FORECAST FROM 30N TO 34N BETWEEN 180W AND 160E AREA OF 
E TO SE WINDS TO 25 KT. SEAS TO 9 FT.
.48 HOUR FORECAST FROM 30N TO 33N BETWEEN 173W AND 164E AREA OF 
E WINDS TO 25 KT. SEAS TO 8 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 40N TO 53N
BETWEEN 165W AND 160E. 
.24 HOUR FORECAST DENSE FOG FROM 40N TO 53N BETWEEN 168W AND 
160E...AND WITHIN 120 NM OF 46N143W AND 49N156W.
.48 HOUR FORECAST DENSE FOG FROM 40N TO 55N BETWEEN 170W AND
160E...AND WITHIN 180 NM OF 47N144W AND 49N155W.

.HIGH 42N144W 1033 MB DRIFTING NE. 
.24 HOUR FORECAST HIGH 43N142W 1033 MB. 
.48 HOUR FORECAST HIGH 45N141W 1034 MB. 

.HIGH 58N158W 1022 MB DRIFTING W. 
.24 HOUR FORECAST HIGH 58N160W 1021 MB. 
.48 HOUR FORECAST HIGH 59N163W 1024 MB. 

.HIGH 39N179W 1033 MB NEARLY STATIONARY WITH LITTLE CHANGE 
THROUGH 48 HOURS. 

.HIGH 53N172E 1018 MB MOVING NE 10 KT. 
.24 HOUR FORECAST HIGH 56N180W 1019 MB. 
.48 HOUR FORECAST HIGH DISSIPATED. 

.FORECASTER MILLS. 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 JUL 18.
24 HOUR FORECAST VALID 0600 UTC THU JUL 19.
48 HOUR FORECAST VALID 0600 UTC FRI JUL 20.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.WITHIN 15 NM OF LINE FROM 16N95W TO 15N95W...INCLUDING THE 
GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. 
.24 HOUR FORECAST WITHIN 30 NM OF LINE FROM 16N95W TO 15N95W... 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT.
SEAS TO 8 FT.
.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.WITHIN 30 NM OF LINE FROM 11N86W TO 10.5N87.5W...INCLUDING THE 
GULF OF PAPAGAYO...NE TO E WINDS 20 TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

.TROPICAL WAVE FROM 12N125W TO 1009 MB SURFACE LOW 14N125W TO 
18N125W. N OF 14N WITHIN 45 NM OF WAVE NE TO E WINDS 20 TO 25 
KT. SEAS TO 9 FT.
.18 HOUR FORECAST TROPICAL WAVE FROM 11N131W TO 19N128W. LOW 
PRES DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.S OF 02S BETWEEN 98W AND 120W WINDS 20 KT OR LESS. SEAS TO 8 
FT IN SW SWELL. 
.24 HOUR FORECAST S OF LINE FROM 03.4S90W TO 08N126W WINDS 20 KT 
OR LESS. SEAS TO 9 FT PRIMARILY IN SW SWELL.
.48 HOUR FORECAST S OF 07N BETWEEN 92W AND 126W WINDS 20 KT OR 
LESS. SEAS TO 10 FT PRIMARILY IN SW SWELL.

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

CONVECTION VALID AT 0900 UTC WED JUL 18...

.TROPICAL WAVE N OF 06N ALONG 81W...SCATTERED MODERATE ISOLATED 
STRONG WITHIN 210 NM OF WAVE.

.TROPICAL WAVE FROM 04N97W TO 15N97W...SCATTERED MODERATE 
ISOLATED STRONG WITHIN 180 NM OF WAVE.

.TROPICAL WAVE FROM 05N112W TO 15N111W...ISOLATED MODERATE AND
STRONG WITHIN 240 NM OF WAVE. 

.TROPICAL WAVE FROM 12N125W TO 18N125W...SCATTERED MODERATE 
ISOLATED STRONG S OF 17N WITHIN 150 NM E OF WAVE. 

.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 09N78W TO 08N96W. ITCZ FROM 08N98W TO 
09N116W TO 14N123W...RESUMES FROM 13N126W TO 09N140W. SCATTERED 
MODERATE ISOLATED STRONG ELSEWHERE 270 NM OF LINE FROM 05N77W TO 
11N122W AND FROM 06N TO 13N W OF 132W.

$$
.FORECASTER NELSON. NATIONAL HURRICANE CENTER.