####018002118####
FZPN40 PHFO 272135

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

2300 UTC SAT APR 27 2024



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.



THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE

HIGHER THAN 10-MINUTE AVERAGE WINDS.



SECURITE



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



SYNOPSIS VALID 1800 UTC APR 27 2024.

24 HOUR FORECAST VALID 1800 UTC APR 28 2024.

48 HOUR FORECAST VALID 1800 UTC APR 29 2024.



.WARNINGS.



.NONE.   



.SYNOPSIS AND FORECAST.



.LOW JUST N OF FORECAST AREA NEAR 31N172W NEARLY STATIONARY. FRONT 

30N169W 26N171W 22N180E MOVING E 10 KT N OF 26N AND NEARLY 

STATIONARY S OF 26N. SE WINDS 20 TO 25 KT AND SEAS 8 TO 9 FT 

WITHIN 120 NM E OF FRONT N OF 29N. W TO NW WINDS 20 TO 25 KT AND 

SEAS 8 TO 10 FT N OF 28N BETWEEN 171W AND 177W. ISOLATED MODERATE 

TSTMS WITHIN 120 NM E OF FRONT N OF 26N. 

.24 HOUR FORECAST LOW MOVED WELL N OF FORECAST AREA. FRONT 30N165W 

27N166W THENCE TROUGH 21N171W. ASSOCIATED WINDS EASED TO 20 KT OR 

LESS AND SEAS LOWERED TO 8 FT OR LESS.

.48 HOUR FORECAST FRONT 30N162W 27N164W THENCE TROUGH 23N168W. 



.TROUGH 24N171E 21N168E MOVING W SLOWLY.

.24 HOUR FORECAST TROUGH 24N166E 20N165E.

.48 HOUR FORECAST TROUGH 25N168E 19N167E.



.48 HOUR FORECAST NEW FRONT 30N169E 27N160E.



.E WINDS 20 TO 25 KT AND SEAS 8 TO 10 FT BETWEEN 06N AND LINE 

21N140W 20N150W 15N165W.

.24 HOUR FORECAST E WINDS 20 TO 25 KT AND SEAS 8 TO 10 FT BETWEEN 

06N AND LINE 22N140W 19N150W 15N165W. 

.48 HOUR FORECAST E WINDS 20 TO 25 KT AND SEAS 8 TO 10 FT BETWEEN 

06N AND LINE 21N140W 20N150W 16N165W.



.WINDS 20 KT OR LESS AND SEAS 8 FT OR LOWER OVER REMAINDER OF 

FORECAST AREA.



.ITCZ 05N140W 06N150W 04N165W 05N175E 05N160E. ISOLATED MODERATE 

TSTMS 90 NM OF ITCZ E OF 175E...AND WITHIN 180 NM OF ITCZ W OF 

175E.  



$$



.FORECASTER WROE. HONOLULU HI.

####018002390####
FZPS40 PHFO 272136

HSFSP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

2330 UTC SAT APR 27 2024



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.



THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE

HIGHER THAN 10-MINUTE AVERAGE WINDS.



SECURITE



SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E



SYNOPSIS VALID 1800 UTC APR 27 2024.

24 HOUR FORECAST VALID 1800 UTC APR 28 2024.

48 HOUR FORECAST VALID 1800 UTC APR 29 2024.



.WARNINGS.



.NONE. 



.SYNOPSIS AND FORECAST.



.TROUGH 25S172W 19S177E 12S160E NEARLY STATIONARY. SE WINDS 20 TO 

25 KT AND SEAS 8 TO 10 FT S OF LINE 25S174E 21S160E. SCATTERED 

MODERATE TSTMS WITHIN 90 NM OF TROUGH W OF 177E. ISOLATED 

MODERATE TSTMS WITHIN 180 NM OF TROUGH E OF 177E.

.24 HOUR FORECAST TROUGH 25S180E 17S170E 13S160E. SE WINDS 20 TO 

25 KT AND SEAS 8 TO 10 FT S OF TROUGH.

.48 HOUR FORECAST TROUGH 25S176W 16S170E 12S160E. SE WINDS 20 TO 

25 KT AND SEAS 8 TO 9 FT BETWEEN TROUGH AND 22S W OF 170E.



.TROUGH 25S133W 18S137W MOVING E 10 KT. SCATTERED MODERATE TSTMS 

WITHIN 120 NM OF TROUGH S OF 20S.

.24 HOUR FORECAST TROUGH 25S132W 19S134W. 

.48 HOUR FORECAST TROUGH 25S133W 22S137W.  



.TROUGH 22S164W 14S165W MOVING SW SLOWLY. ISOLATED MODERATE TSTMS 

WITHIN 480 NM E OF TROUGH N OF 19S. 

.24 HOUR FORECAST TROUGH DISSIPATED.



.E TO SE WINDS 20 TO 25 KT FROM 18S TO 22S BETWEEN 143W AND 160W.

.24 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 14S TO 21S 

BETWEEN 140W AND 165W.

.48 HOUR FORECAST E TO SE WINDS 20 TO 25 KT FROM 14S TO 23S 

BETWEEN 145W AND 167W.



.WINDS 20 KT OR LESS OVER REMAINDER OF AREA.



.SEAS 8 TO 10 FT S OF LINE 25S130W 18S145W 17S164W. 

.24 HOUR FORECAST SEAS 8 TO 10 FT S OF LINE 22S120W 18S140W 

12S155W 18S165W. 

.48 HOUR FORECAST SEAS 8 TO 9 FT IN AREA BOUNDED BY 12S150W 

19S150W 25S164W 25S160W 14S165W 12S150W...AND S OF 20S E OF 130W. 



.SEAS 8 FT OR LOWER OVER REMAINDER OF AREA.



.ISOLATED MODERATE TSTMS FROM 05S TO 09S BETWEEN 135W AND 139W...

WITHIN 90 NM OF LINE 03S147W 02S155W...AND WITHIN 180 NM OF LINE 

12S147W 08S165W 05S180E 03S165E.



$$



.FORECASTER WROE. HONOLULU HI.