

276 

FZPN02 KWBC 182325

HSFEPI



HIGH SEAS FORECAST FOR METAREA XII

NWS OCEAN PREDICTION CENTER WASHINGTON DC

2345 UTC THU AUG 18 2016



CCODE/1:31:12:01:00/AOW+POR/NWS/CCODE

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC AUG 18. 

24 HOUR FORECAST VALID 1800 UTC AUG 19. 

48 HOUR FORECAST VALID 1800 UTC AUG 20. 



.WARNINGS. 



...GALE WARNING... 

.FROM 36N TO 53N BETWEEN 124W AND 136W N TO NW WINDS 25 TO 35 

KT. SEAS TO 12 FT. 

.24 HOUR FORECAST FROM 36N TO 54N BETWEEN 126W AND 140W N TO NW 

WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. 

.48 HOUR FORECAST WITHIN 240 NM W AND NW OF A LINE FROM 34N140W 

TO 45N126W TO 51N128W N TO NW WINDS 20 TO 30 KT. SEAS TO 10 FT.



...GALE WARNING...

.24 HOUR FORECAST N OF 60N W OF ALASKA SW WINDS TO 25 KT. SEAS 

TO 8 FT.

.42 HOUR FORECAST N OF 65N BETWEEN 162W AND 175W SW WINDS 25 TO 

35 KT. SEAS TO 10 FT.

.48 HOUR FORECAST N OF THE ALEUTIAN ISLANDS S OF 60N SW WINDS 20 

TO 30 KT. SEAS TO 10 FT. 



.SYNOPSIS AND FORECAST. 



.SW OF A LINE FROM 34N160E TO 30N162E SE WINDS 20 TO 30 KT. SEAS 

TO 11 FT. 

.24 HOUR FORECAST CONDITIONS W OF AREA. 



.LOW 55N164W 1010 MB MOVING NE 10 KT. WITHIN 300 NM E SEMICIRCLE 

WINDS TO 25 KT. SEAS TO 9 FT. 

.24 HOUR FORECAST LOW 57N162W 1018 MB. CONDITIONS DIMINISHED. 

.48 HOUR FORECAST LOW DISSIPATED. 



.FRONT EXTENDS FROM 59N138W TO 56N140W TO 34N171W. WITHIN 90 NM 

SE OF THE FRONT WINDS TO 25 KT. SEAS TO 12 FT. 

.24 HOUR FORECAST FRONT TO EXTEND FROM 55N140W TO LOW 43N160W 

1020 MB TO 36N169W. WITHIN 60 NM SE OF THE FRONT AND 90 NM OF 

THE LOW WINDS TO 25 KT. SEAS TO 8 FT. 

.48 HOUR FORECAST LOW 45N157W 1022 MB. WITHIN 180 NM OF THE LOW 

WINDS TO 25 KT. SEAS TO 8 FT.



.48 HOUR FORECAST FROM 47N TO 53N W OF 178E SW WINDS TO 25 KT. 

SEAS TO 10 FT.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 90 NM OF 

54N140W AND N OF 44N BETWEEN 175E AND 165E. 

.24 HOUR FORECAST DENSE FOG WITHIN 120 NM OF 54N141W AND NW OF A 

LINE FROM 45N168E TO 50N180W TO 63N173W. 

.48 HOUR FORECAST DENSE FOG W OF A LINE FROM 64N168W TO 49N172W 

TO 46N171E. 



.HIGH 45N142W 1036 MB DRIFTING SW. 

.24 HOUR FORECAST HIGH 44N144W 1033 MB. 

.48 HOUR FORECAST HIGH 43N145W 1031 MB. 



.HIGH 50N153W 1026 MB NEARLY STATIONARY. 

.24 HOUR FORECAST LITTLE CHANGE. 

.48 HOUR FORECAST HIGH DISSIPATED. 



.HIGH 44N163E 1027 MB MOVING NE 05 KT. 

.24 HOUR FORECAST HIGH 46N167E 1030 MB. 

.48 HOUR FORECAST HIGH 44N174E 1030 MB. 



.HIGH 48N179E 1027 MB MOVING SE 10 KT. 

.24 HOUR FORECAST HIGH 46N177W 1030 MB. 

.48 HOUR FORECAST HIGH 44N177W 1032 MB. 



.FORECASTER LEE. 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 1800 UTC THU AUG 18.

24 HOUR FORECAST VALID 1800 UTC FRI AUG 19.

48 HOUR FORECAST VALID 1800 UTC SAT AUG 20.



.WARNINGS.



...TROPICAL STORM WARNING...

.TROPICAL DEPRESSION TWELVE-E NEAR 17.8N 110.1W 1005 MB AT 2100

UTC AUG 18 MOVING NW OR 315 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS

30 KT GUSTS 40 KT. WITHIN 180 NM SE AND 90 NM NW SEMICIRCLES

WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 

.12 HOUR FORECAST TROPICAL STORM TWELVE-E NEAR 18.5N 110.7W.

MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE

WINDS WITHIN 30 NM E SEMICIRCLE AND 40 NM W SEMICIRCLE. SEAS 12

FT OR GREATER WITHIN 60 NM SE AND 30 NM SW QUADRANTS WITH SEAS

TO 13 FT. ELSWHERE WITHIN 210 NM SE AND 120 NM NW SEMICIRCLE

WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.

.24 HOUR FORECAST TROPICAL STORM TWELVE-E NEAR 19.4N 111.3W.

MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE

WINDS WITHIN 40 NM OF CENTER EXCEPT 30 NM SE QUADRANT. SEAS 12

FT OR GREATER WITHIN 60 NM OF CENTER WITH SEAS TO 14 FT.

ELSEWHERE WITHIN 210 NM SE AND 150 NM NW SEMICIRCLES WINDS 20 TO

33 KT. SEAS 8 TO 12 FT.

.48 HOUR FORECAST TROPICAL DEPRESSION TWELVE-E NEAR 20.6N

111.7W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 180 NM

OF CENTER WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.

.72 HOUR FORECAST POST-TROPICAL REMNANT LOW TWELVE-E NEAR 21.2N

111.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.

.96 HOUR FORECAST POST-TROPICAL REMNANT LOW TWELVE-E NEAR 21.7N

112.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.

.120 HOUR FORECAST POST-TROPICAL REMNANT LOW TWELVE-E NEAR 23.5N

114.4W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 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.



.N OF 29N BETWEEN 126W AND 131W WINDS 20 KT OR LESS. SEAS TO 8

FT IN NW TO N SWELL.

.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



.TROPICAL WAVE ALONG 136W FROM 11.5N TO 20N. WITHIN 60 NM OF

LINE FROM 17N135W TO 16N138W  WINDS 20 KT OR LESS. SEAS 8 FT IN

MIXED SWELL. 

.24 HOUR FORECAST TROPICAL WAVE ALONG 140W FROM 12N TO 18N.

WITHIN 30 NM OF LINE FROM 17N138W TO 17N140W WINDS 20 KT OR

LESS. SEAS 8 FT IN MIXED SWELL.

.30 HOUR FORECAST TROPICAL WAVE MOVED W OF AREA. WINDS 20 KT OR 

LESS.

SEAS LESS THAN 8 FT.



.WITHIN AREA BOUNDED BY 16N94W TO 16N95W TO 15N95W TO 14N95W TO

15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20

TO 25 KT. SEAS 8 FT.

.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



.WITHIN AREA BOUNDED BY 03N115W TO 03N124W TO 01N128W TO 01S120W

TO 03.4S120W TO 03.4S98W TO 03N115W WINDS 20 KT OR LESS. SEAS 8

FT IN S TO SW SWELL. WITHIN AREA BOUNDED BY 06N80W TO 06N81W TO

05N83W TO 03N82W TO 03N80W TO 04N79W TO 06N80W WINDS 20 KT OR

LESS. SEAS TO 8 FT IN SW SWELL.

.24 HOUR FORECAST WITHIN AREA BOUNDED BY 02S100W TO 01S104W TO

03.4S117W TO 03.4S96W TO 02S100W WINDS 20 KT OR LESS. SEAS TO 8

FT IN SW SWELL. WITHIN AREA BOUNDED BY 03N114W TO 04N116W TO

04N119W TO 03N120W TO 00N118W TO 00N115W TO 03N114W WINDS 20 KT

OR LESS. SEAS TO 8 FT IN S TO SW SWELL.

.30 HOUR FORECAST 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 AT 2145 UTC THU AUG 18...



.TROPICAL DEPRESSION TWELVE-E...SCATTERED STRONG WITHIN 180

NM SW AND 90 NM NW QUADRANTS.



.TROPICAL WAVE ALONG 95W N OF 10N...SCATTERED MODERATE WITHIN

30 NM OF 13N96W.



.SCATTERED MODERATE FROM 11N TO 16N BETWEEN 100W AND 107W.



.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH AXIS EXTENDS FROM 09N84W TO 08N91W TO 10N100W. IT

RESUMES FROM 16N112W TO 13N120W TO LOW PRES NEAR 09N129W 1011

MB, AND TO 13N135W TO BEYOND 10N140W. SCATTERED MODERATE/ISOLATED

STRONG WITHIN 60 NM S OF AXIS BETWEEN 112W AND 116W. SCATTERED

MODERATE WITHIN 150 NM S OF AXIS E OF 88W...WITHIN 120 NM N OF 

AXIS

BETWEEN 88W AND 94W...AND WITHIN 60 NM N OF AXIS BETWEEN 120W 

AND 122W. 



.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.



NATIONAL WEATHER SERVICE HONOLULU HI

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E



SYNOPSIS VALID 1800 UTC AUG 18 2016.

24 HOUR FORECAST VALID 1800 UTC AUG 19 2016.

48 HOUR FORECAST VALID 1800 UTC AUG 20 2016.



.WARNINGS. 



.SYNOPSIS AND FORECAST. 



.LOW NEAR 10N164E 1007 MB MOVING W SLOWLY. SCATTERED MODERATE TO 

STRONG TSTMS WITHIN 480 NM OF LOW CENTER SE QUADRANT...ISOLATED 

MODERATE TO STRONG TSTMS WITHIN 240 NM OF LOW CENTER REMAINING 

QUADRANTS. 

.24 HOUR FORECAST LOW NEAR 13N162E 1007 MB. 

.48 HOUR FORECAST LOW DISSIPATED. REMNANT TROUGH FROM 16N160E TO 

20N167E. 



.TROUGH FROM 15N175W TO 19N174W TO 22N171W. SCATTERED MODERATE 

TSTMS FROM 25N TO 15N BETWEEN 175E AND 167W. 

.24 HOUR FORECAST TROUGH FROM 17N179E TO 23N178W. 

.48 HOUR FORECAST TROUGH DISSIPATED. 



.WINDS E TO SE 20 TO 30 KT OVER FORECAST WATERS N OF 21N W OF 

163E. 

.24 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS. 



.SEAS 8 TO 12 FT OVER FORECAST WATERS N OF 17N W OF 165E. 

.24 HOUR FORECAST SEAS 8 TO 10 FT OVER FORECAST WATERS N OF 17N 

W OF 163E. 

.48 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER. 



.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA. 



.ITCZ FROM 10N140W TO 13N148W TO 10N155W AND ALSO FROM 10N163W 

TO 09N171W TO 11N178W TO 08N171E. TROPICAL WAVE EMBEDDED WITHIN 

ITCZ...AXIS FROM 07N160E 11N159W TO 14N156W MOVING NW 15 KT. 

SCATTERED STRONG TSTMS WITHIN 120 NM EITHER SIDE OF WAVE AXIS. 

ISOLATED MODERATE TO STRONG TSTMS ELSEWHERE WITHIN 240 NM OF 

ITCZ W OF 155W...AND WITHIN 120 NM OF ITCZ E OF 155W. 



.OTHERWISE ISOLATED MODERATE TO STRONG TSTMS WITHIN A POLYGON 

BOUND BY 27N160E 15N170E 15N160E 27N160E. SCATTERED MODERATE 

TSTMS OVER FORECAST WATERS N OF 26N BETWEEN 170E AND 175W. 





$$ 



.FORECASTER BEDAL. HONOLULU HI.

