183
FZPN40 PHFO 110308
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SAT MAY 11 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 11 2024.
24 HOUR FORECAST VALID 0000 UTC MAY 12 2024.
48 HOUR FORECAST VALID 0000 UTC MAY 13 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 04N171E 1008 MB MOVING W SLOWLY. SCATTERED MODERATE TSTMS
WITHIN 210 NM OF LOW.
.24 HOUR FORECAST LOW 04N171E 1009 MB. WINDS 20 TO 25 KT WITHIN
60 NM N SEMICIRCLE.
.48 HOUR FORECAST LOW 02N167E 1009 MB. WINDS DECREASED TO 20 KT OR
LESS.

.TROUGH 30N155W 21N158W 19N160W MOVING S SLOWLY. NE WINDS 20 TO 30
KT N OF A LINE 30N156W 22N160W 17N172W. SCATTERED MODERATE
TO LOCALLY STRONG TSTMS FROM 18N TO 23N BETWEEN 153W AND 161W.
.24 HOUR FORECAST TROUGH 26N158W 22N160W 18N158W. NE WINDS 20 TO 25
KT N OF 22N BETWEEN 156W AND 170W.
.48 HOUR FORECAST TROUGH 25N153W 21N163W 18N164W. E WINDS 20 TO 25
KT FROM 24N TO 27N BETWEEN 151W AND 159W.

.FRONT NEAR 30N160E MOVING E 15 KT.
.24 HOUR FORECAST WEAK FRONT 30N164E 28N160E. NE WINDS 20 TO 25 KT
N OF FRONT.
.48 HOUR FORECAST WEAK FRONT 30N175E 24N160E. NE TO E WINDS 20 TO
25 KT N OF FRONT.

.TROUGH 27N173E 22N170E MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH 30N172E 22N167E.
.48 HOUR FORECAST TROUGH ABSORBED BY FRONT MENTIONED ABOVE.

.NE WINDS 20 TO 25 KT FROM 08N TO 25N BETWEEN 170W AND 176E.
.24 HOUR FORECAST WINDS DECREASED TO 20 KT OR LESS.

.OTHERWISE...WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 TO 10 FT WITHIN AN AREA BOUNDED BY 28N168W 23N179E
21N178W 22N161W 29N158W 28N168W.
.24 HOUR FORECAST SEAS 8 TO 9 FT WITHIN 150 NM EITHER SIDE OF A
LINE 28N160W 22N167W.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 25N TO 28N W OF 167E.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMAINDER OF FORECAST AREA.

.ITCZ 08N140W 08N144W 06N150W 08N162W 07N172W 04N178W 04N176E
THENCE MONSOON TROUGH TO 06N167E 05N160E. ISOLATED MODERATE TSTMS
WITHIN 240 NM OF ITCZ...AND WITHIN 300 NM N OF MONSOON TROUGH.



$$

.FORECASTER TSAMOUS. HONOLULU HI.