FZPS40 PHFO 100312

HSFSP 



HIGH SEAS FORECAST

NATIONAL WEATHER SERVICE HONOLULU HI

0530 UTC SAT MAY 10 2025



SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 10 2025.

24 HOUR FORECAST VALID 0000 UTC MAY 11 2025.

48 HOUR FORECAST VALID 0000 UTC MAY 12 2025.



.WARNINGS.



...GALE WARNING...

.LOW NEAR 16S170E 1005 MB MOVING E 10 KT. TROUGH FROM 25S152W TO

16S152W TO 10S165W TO LOW TO 11S160E NEARLY STATIONARY. WINDS 20

TO 30 KT S OF A LINE FROM 12S165W TO 17S170W TO 13S160E.

SCATTERED MODERATE TSTMS WITHIN 300 NM OF LOW AND TROUGH.

.24 HOUR FORECAST LOW NEAR 17S174E 1004 MB. SECOND LOW NEAR 

17S177W 1003 MB. TROUGH FROM 25S137W TO 14S153W TO SECOND LOW TO

FIRST LOW TO 11S160E. WINDS 30 TO 35 KT FROM 19S TO 16S BETWEEN

174W TO 179W. WINDS 20 TO 30 KT ELSEWHERE S OF 12S W OF 169W. 

.48 HOUR FORECAST FIRST LOW NEAR 16S177E 1005 MB. SECOND LOW 

NEAR 19S174W 999 MB. WINDS 30 TO 35 KT FROM 24S TO 16S BETWEEN

167W TO 178W. WINDS 20 TO 30 KT ELSEWHERE S OF 12S W OF 165W. 



.SYNOPSIS AND FORECAST.



.E WINDS 20 TO 25 KT E OF 140W.

.24 HOUR FORECAST WINDS DECREASED TO 20 KT OR BELOW.



.WINDS 20 KT OR LESS REMAINDER OF FORECAST AREA.



.SEAS 8 TO 12 FT S OF A LINE FROM 23S135W TO 09S168W TO 22S168W

TO 19S160E.

.24 HOUR FORECAST SEAS 8 TO 12 FT S OF 15S W OF 168W. SEAS 8 TO 10

FT S OF 21S BETWEEN 125W AND 165W.

.48 HOUR FORECAST SEAS 12 TO 16 FT FROM 23S TO 16S BETWEEN 168W

AND 178E. SEAS 8 TO 12 FT ELSEWHERE S OF 14S W OF 165W. SEAS 8 TO

11 FT S OF A LINE FROM 20S120W TO 18S131W TO 25S140W.



.SEAS 8 FT OR LOWER REMAINDER OF FORECAST AREA.



$$



.FORECASTER FOSTER. HONOLULU HI.