####018001798####
FZPN40 PHFO 301041

HSFNP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1100 UTC TUE APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 30 2024.

24 HOUR FORECAST VALID 0600 UTC MAY 01 2024.

48 HOUR FORECAST VALID 0600 UTC MAY 02 2024.



.WARNINGS.



.NONE.   



.SYNOPSIS AND FORECAST.



.WEAK FRONT 30N160W 27N160W 25N162W THENCE TROUGH 22N166W 17S166W.  

NEARLY STATIONARY.

.24 HOUR FORECAST FRONT WEAKENED TO TROUGH 30N159W 23N162W.  

.48 HOUR FORECAST TROUGH 30N160W 22N162W.



.WEAK TROUGH 22N179W 17N179W MOVING SLOWLY WEST.

.24 HOUR FORECAST TROUGH DISSIPATED. 



.TROUGH 26N167E 21N165E 18N166E. MOVING W AT 10 KT. 

.24 HOUR FORECAST TROUGH 21N163E 18N161E.

.48 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA. 



.WINDS 20 TO 25 KT FROM 05N TO 25N E OF 153W...AND FROM 05N TO

10N W OF 170W. 

.24 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE 05N160W 20N150W

25N140W. 

.48 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE 05N165W 15N165W

25N140W. 



.WINDS 20 KT OR LESS OVER REMAINDER OF AREA.



.SEAS 8 TO 9 FT FROM 05N TO 20N E OF 150W.  

.24 HOUR FORECAST SEAS LOWERED TO 8 FT OR LOWER. 



.SEAS 8 FT OR LOWER OVER REMAINDER OF AREA.



.ITCZ 08N166W 05N153W 05N144W 06N140W. SCATTERED MODERATE TO

LOCALLY STRONG TSTMS WITHIN 300 NM OF ITCZ BETWEEN 170W AND

145W. 





$$



.FORECASTER PECHACEK. HONOLULU HI.

####018002074####
FZPS40 PHFO 301043

HSFSP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

1130 UTC TUE APR 30 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC APR 30 2024.

24 HOUR FORECAST VALID 0600 UTC MAY 01 2024.

48 HOUR FORECAST VALID 0600 UTC MAY 02 2024.



.WARNINGS.



.NONE. 



.SYNOPSIS AND FORECAST.



.TROUGH 08S160E 06S180W 11S165W 10S150W. SCATTERED MODERATE

TSTMS WITHIN 270 NM OF TROUGH.

.24 HOUR FORECAST TROUGH 10S160E 21S177E. 

.48 HOUR FORECAST TROUGH 09S160E 11S172E 16S179E.  



.FRONT 25S173W 24S174W THENCE TROUGH 20S177W 16S177W NEARLY 

STATIONARY. 

.24 HOUR FORECAST TROUGH 18S175W 25S171W.

.48 HOUR FORECAST TROUGH 20S179E 25S175W. 



.TROUGH 25S136W 23S140W MOVING S SLOWLY. 

.24 HOUR FORECAST TROUGH 20S133W 25S131W. 

.48 HOUR FORECAST TROUGH 20S130W 25S125W. 



.WINDS 20 TO 25 KT S OF 15S BETWEEN 160W AND 140W...AND S

OF 15S W OF 175E. 

.24 HOUR FORECAST WINDS 20 TO 25 KT S OF LINE 10S165W 

15S145W 25S138W...AND FROM 20S TO 14S W OF 165E.  

.48 HOUR FORECAST WINDS 20 TO 25 KT S OF LINE 10S160E 

15S180W...AND S OF LINE 10S170W 10S150W 20S140W 25S130W. 



.WINDS 20 KT OR LESS OVER REMAINDER OF AREA.



.SEAS 8 TO 9 FT FROM 20S TO 15S BETWEEN 170W AND 155W.

.24 HOUR FORECAST SEAS  8 TO 9 FT FROM 20S TO 15S BETWEEN

165W AND 158W. 

.48 HOUR FORECAST SEAS 12 TO 15 FT S OF 20S BETWEEN 150W AND

140W. SEAS 8 TO 12 FT ELSEWHERE S OF LINE 25S170W 15S170W

15S150W 25S130W.  



.SEAS 8 FT OR LOWER OVER REMAINDER OF AREA.



.SCATTERED MODERATE TSTMS FROM 25S TO 15S BETWEEN 174W AND 

167W...AND WITHIN 120 NM OF POINT 19S126W. 





$$



.FORECASTER PECHACEK. HONOLULU HI.