177
FZPN40 PHFO 171500
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC FRI MAY 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAY 17 2024.
24 HOUR FORECAST VALID 1200 UTC MAY 18 2024.
48 HOUR FORECAST VALID 1200 UTC MAY 19 2024.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 30N166W TO 27N171W NEARLY STATIONARY. NW WINDS 30 TO
35 KT N OF 28N BETWEEN TROUGH AND 177W. REMAINDER OF WINDS AND
SEAS DESCRIBED BELOW.
.24 HOUR FORECAST TROUGH FROM 30N164W TO 27N166W TO 24N172W. WINDS
AND SEAS DESCRIBED BELOW.
.48 HOUR FORECAST TROUGH FROM 30N163W TO 25N167W. WINDS AND SEAS
DESCRIBED BELOW.

.SYNOPSIS AND FORECAST.

.FRONT FROM 30N156W TO 24N156W TO 16N163W NEARLY STATIONARY. SE
WINDS 20 TO 30 KT N OF 22N WITHIN 150 NM E OF FRONT. SEAS
DESCRIBED BELOW. SCATTERED MODERATE TSTMS N OF 22N WITHIN 150 NM
OF FRONT.
.24 HOUR FORECAST FRONT WEAKENED TO TROUGH FROM 30N157W TO
25N158W TO 17N165W. SE WINDS 20 TO 25 KT N OF 22N WITHIN 150 NM E
OF FRONT. SEAS DESCRIBED BELOW.
.48 HOUR FORECAST TROUGH FROM 30N161W TO 23N163W TO 15N167W. SE
TO S WINDS 20 TO 25 KT N OF 22N BETWEEN TROUGH AND A LINE FROM
30N152W TO 18N162W. SEAS DESCRIBED BELOW.

.N TO E WINDS 20 TO 30 KT N OF A LINE FROM 30N161W TO 26N167W TO
20N175W TO 15N173W TO 08N163E.
.24 HOUR FORECAST NW TO SW WINDS 20 TO 25 KT N OF 25N BETWEEN
160W AND 175E. NE WINDS 20 TO 25 KT FROM 16N TO 07N E OF
158W...AND FROM 22N TO 11N W OF 177E.
.48 HOUR FORECAST NW WINDS 20 TO 25 KT WITHIN 90 NM OF 29N173W.
NE WINDS 20 TO 25 KT FROM 21N TO 11N W OF 170E.

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

.SEAS 16 TO 20 FT N OF 28N BETWEEN 165W TO 174W. SEAS 12 TO 16 FT
ELSEWHERE N OF 26N BETWEEN 163W TO 176W. SEAS 8 TO 12 FT ELSEWHERE
N OF A LINE FROM 30N152W TO 23N155W TO 20N165W TO 14N171W TO
15N166E.
.24 HOUR FORECAST SEAS 12 TO 15 FT N OF 25N BETWEEN 170W TO 178E.
SEAS 8 TO 12 FT N OF A LINE FROM 30N153W TO 17N168W TO 21N176E.
SEAS 8 TO 10 FT FROM 23N TO 11N W OF 176E.
.48 HOUR FORECAST SEAS 8 TO 11 FT N OF 28N BETWEEN 156W TO 179W.
SEAS 8 TO 10 FT BETWEEN TWO LINES FROM 17N177W TO 11N160E AND FROM
30N176E TO 21N160E.

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

.ITCZ FROM 05N140W TO 05N154W TO 08N170W.

.ISOLATED MODERATE TSTMS WITHIN 90 NM OF 05N177W AND 07N166E.



$$

.FORECASTER BLOOD. HONOLULU HI.