

007 

FZPN01 KWBC 310337

HSFEP1



HIGH SEAS FORECAST 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

0430 UTC WED AUG 31 2016 



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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). 



PAN PAN 



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

TO 50N 160E 



SYNOPSIS VALID 0000 UTC AUG 31. 

24 HOUR FORECAST VALID 0000 UTC SEP 01. 

48 HOUR FORECAST VALID 0000 UTC SEP 02. 



.WARNINGS. 



...GALE WARNING...

.LOW 30N177E 1004 MB MOVING NE 30 KT. OVER FORECAST WATERS 

WITHIN 90 NM E QUADRANT WINDS 25 TO 35 KT. SEAS TO 12 FT. 

ELSEWHERE S OF 32N BETWEEN 176W AND 177E WINDS 20 TO 30 KT. SEAS 

TO 9 FT.

.24 HOUR FORECAST LOW 37N170W 1003 MB WITH NEW LOW 42N165W 1003 

MB. WITHIN 90 NM EITHER SIDE OF A LINE FROM 43N163W TO 37N167W 

TO 34N170W S TO SW WINDS 30 TO 45 KT. SEAS 12 TO 18 FT. 

ELSEWHERE WITHIN 180 NM EITHER SIDE OF A LINE FROM 46N160W TO 

36N164W TO 30N174W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.48 HOUR FORECAST LOW 43N161W 1008 MB WITH SECOND LOW 50N159W 

1000 MB. WITHIN 180 NM E SEMICIRCLE OF FIRST LOW...AND WITHIN 

180 NM E AND 240 NM SE QUADRANT OF SECOND LOW WINDS 25 TO 40 KT. 

SEAS 12 TO 18 FT. ELSEWHERE WITHIN 90 NM EITHER SIDE OF A LINE 

FROM 55N160W TO 51N150W...AND WITHIN 180 NM EITHER SIDE OF A 

LINE FROM 51N159W TO 45N154W TO 32N169W WINDS 20 TO 30 KT. SEAS 

9 TO 16 FT.



...GALE WARNING... 

.LOW 48N177W 999 MB MOVING NW 10 KT. WITHIN 240 NM E 

SEMICIRCLE...AND FROM 53N TO 57N BETWEEN 171W AND 180W WINDS 20 

TO 30 KT. SEAS TO 8 FT.

.24 HOUR FORECAST LOW 51N177E 992 MB. OVER FORECAST WATERS 

WITHIN 120 NM EITHER SIDE OF A LINE FROM 46N168E TO 51N163E NW 

WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE FROM 52N TO 60N W 

OF 172W...WITHIN 180 NM EITHER SIDE OF A LINE FROM 51N163E TO 

45N168E...AND FROM 40N TO 45N BETWEEN 173E AND 161E WINDS 20 TO 

30 KT. SEAS 8 TO 13 FT.

.48 HOUR FORECAST LOW 47N178E 989 MB. WITHIN 240 NM N AND 360 NM 

E QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. ELSEWHERE WITHIN 

240 NM EITHER SIDE OF A LINE FROM 52N165E TO 45N166E TO 40N174E 

WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. ALSO FROM 35N TO 51N BETWEEN 

170W AND 176E WINDS 20 TO 30 KT. SEAS TO 12 FT.



.SYNOPSIS AND FORECAST. 



.WITHIN 90 NM EITHER SIDE OF A LINE FROM 48N163W TO 40N163W TO 

32N170W S TO SW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.24 HOUR FORECAST CONDITIONS DESCRIBED IN FIRST GALE WARNING 

ABOVE.



.LOW 55N140W 1008 MB MOVING SE 10 KT. WITHIN 180 NM N SEMICIRCLE 

WINDS TO 25 KT. SEAS TO 8 FT.

.24 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED BY LOW 

52N134W BELOW.



.LOW 49N127W 1010 MB NEARLY STATIONARY. OVER FORECAST WATERS 

FROM 44N TO 49N BETWEEN 125W AND 127W S TO SE WINDS TO 25 KT. 

SEAS TO 8 FT.

.24 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DESCRIBED BY LOW 

52N134W BELOW.



.LOW 50N135W 1008 MB MOVING N 05 KT. FROM 44N TO 50N BETWEEN 

134W AND 138W NW WINDS 20 TO 30 KT. SEAS TO 10 FT.

.24 HOUR FORECAST LOW 52N134W 1006 MB. OVER FORECAST WATERS 

WITHIN 180 NM E AND 360 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 

TO 8 FT.

.48 HOUR FORECAST LOW 48N131W 1009 MB. WITHIN 120 NM EITHER SIDE 

OF A LINE FROM 50N136W TO 44N130W NW WINDS 20 TO 30 KT. SEAS TO 

8 FT.



.OVER FORECAST WATERS W OF A LINE FROM 39N160E TO 30N170E E 

WINDS TO 25 KT. SEAS TO 9 FT.

.24 HOUR FORECAST CONDITIONS DIMINISHED.



.FROM 30N TO 36N OVER FORECAST WATERS BETWEEN 119W AND 124W AREA 

OF N TO NW WINDS 20 TO 30 KT. SEAS 8 TO 13 FT. 

.24 HOUR FORECAST FROM 30N TO 39N BETWEEN 117W AND 124W AREA OF 

NW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.

.48 HOUR FORECAST FROM 30N TO 40N BETWEEN 119W AND 126W AREA OF 

NW WINDS 20 TO 30 KT. SEAS 8 TO 12 FT.



.48 HOUR FORECAST W OF A LINE FROM 65N167W TO 62N168W TO 59N177W 

N TO NE WINDS 20 TO 30 KT. SEAS TO 9 FT.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST 

WATERS WITHIN 240 NM EITHER SIDE OF A LINE FROM 52N177W TO 

46N161W...WITHIN 120 NM OF 49N157W...AND WITHIN 180 NM EITHER 

SIDE OF A LINE FROM 52N178E TO 56N174E.

.24 HOUR FORECAST DENSE FOG WITHIN 120 NM EITHER SIDE OF A LINE 

FROM 55N173E TO 51N180W...WITHIN 120 NM EITHER SIDE OF A LINE 

FROM 57N168W TO 58N174W TO 54N177W...AND WITHIN AN AREA BOUNDED 

BY 51N174W TO 48N176W TO 41N164W TO 49N150W TO 54N164W TO 

51N174W.

.48 HOUR FORECAST DENSE FOG WITHIN 120 NM OF 53N176E...WITHIN 

300 NM EITHER SIDE OF A LINE FROM 45N171W TO 55N165W...AND 

WITHIN 180 NM EITHER SIDE OF A LINE FROM 53N157W TO 47N152W.



.HIGH 40N152W 1030 MB MOVING SE 10 KT.

.24 HOUR FORECAST HIGH 38N149W 1027 MB.

.48 HOUR FORECAST HIGH 37N147W 1029 MB.



.24 HOUR FORECAST NEW HIGH 54N152W 1019 MB. 

.48 HOUR FORECAST HIGH 52N144W 1021 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 0000 UTC WED AUG 31.

24 HOUR FORECAST VALID 0000 UTC THU SEP 01.

48 HOUR FORECAST VALID 0000 UTC FRI SEP 02.



.WARNINGS.



...HURRICANE WARNING...

.HURRICANE LESTER NEAR 17.8N 136.5W 948 MB AT 0300 UTC AUG 31

MOVING W OR 260 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 120 KT

GUSTS 145 KT. TROPICAL STORM FORCE WINDS WITHIN 80 NM N

SEMICIRCLE...70 NM SE QUADRANT AND 60 NM SW QUADRANT.  SEAS 12

FT OR GREATER WITHIN 240 NM NE AND SW QUADRANTS...300 NM NW

QUADRANT AND 120 NM SE QUADRANT WITH SEAS TO 42 FT. ELSEWHERE

WITHIN 120 NM SE AND 150 NM NW SEMICIRCLES WINDS 20 TO 33 KT.

SEAS TO 11 FT. REMAINDER WATERS WITHIN 240 NM SE AND 500 NM NW

SEMICIRCLES WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN

MIXED SWELL.

.24 HOUR FORECAST HURRICANE LESTER NEAR 17.9N 140.3W. MAXIMUM

SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS

WITHIN 100 NM NE QUADRANT...80 NM SE QUADRANT...70 NM SW

QUADRANT...AND 90 NM NW QUADRANT. WINDS 20 TO 33 KT AND SEAS 12

FT OR GREATER WITHIN 120 NM SE AND 300 NM NW SEMICIRCLES WITH

SEAS TO 36 FT. REMAINDER OVER FORECAST WATERS FROM 13N TO 27N W

OF 134W WINDS 20 KT OR LESS. SEAS TO 11 FT PRIMARILY IN MIXED

SWELL. 

.48 HOUR FORECAST HURRICANE LESTER NEAR 18.7N 144.7W. MAXIMUM

SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS

WITHIN 120 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW

QUADRANT...AND 110 NM NW QUADRANT. WINDS 20 TO 33 KT AND SEAS 12

FT OR GREATER WITHIN 280 NM N AND 180 NM S SEMICIRCLES WITH SEAS

TO 34 FT. OVER FORECAST WATERS FROM 18N TO 26N W OF 138W WINDS

20 KT OR LESS. SEAS 8 TO 10 FT PRIMARILY IN MIXED SWELL.

.72 HOUR FORECAST HURRICANE LESTER NEAR 20.0N 149.6W. MAXIMUM

SUSTAINED WINDS 85 KT GUSTS 105 KT.

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

.96 HOUR FORECAST HURRICANE LESTER NEAR 21.8N 155.0W. MAXIMUM

SUSTAINED WINDS 75 KT GUSTS 90 KT.

.120 HOUR FORECAST HURRICANE LESTER NEAR 23.5N 159.5W. MAXIMUM

SUSTAINED WINDS 65 KT GUSTS 80 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.



.FROM 09N TO 12N BETWEEN 95W AND 108W WINDS 20 KT OR LESS. SEAS

TO 9 FT IN SW SWELL.

.24 HOUR FORECAST FROM 07N TO 11N BETWEEN 91W AND 103W WINDS 20

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

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



.42 HOUR FORECAST FROM 07N TO 09N BETWEEN 112W AND 118W WINDS

20 KT OR LESS. SEAS TO 8 FT IN S SWELL. 

.48 HOUR FORECAST FROM 07N TO 10N BETWEEN 109W AND 118W WINDS

20 KT OR LESS. SEAS TO 9 FT IN S SWELL. 



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



CONVECTION VALID AT 0230 UTC WED AUG 31...



.HURRICANE LESTER...

SCATTERED STRONG WITHIN 90 NM E SEMICIRCLE. SCATTERED MODERATE

TO ISOLATED STRONG ELSEWHERE WITHIN 120 NM W SEMICIRCLE.



.INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH AXIS EXTENDS FROM 13N99W TO 11N108W TO 12N116W TO

15N127W. SCATTERED MODERATE TO ISOLATED STRONG WITHIN 60 NM

ALONG THE COAST OF COAST RICA...WITHIN 75 NM ALONG THE COAST OF

GUATEMALA AND MEXICO BETWEEN 91W AND 94W...AND WITHIN 75 NM

ALONG THE COAST OF WEST MEXICO FROM 19N TO 22N. SCATTERED

MODERATE FROM 05N TO 10N BETWEEN 83W AND 89W...FROM 12N TO 16N

BETWEEN 105W AND 109W...WITHIN 90 NM SOUTH OF MONSOON TROUGH

BETWEEN 109W AND 113W.  



$$



.FORECASTER PAW. NATIONAL HURRICANE CENTER.

