599
FZPN40 PHFO 181000
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SAT MAY 18 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 18 2024.
24 HOUR FORECAST VALID 0600 UTC MAY 19 2024.
48 HOUR FORECAST VALID 0600 UTC MAY 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N158W 26N160W 17N167W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 120 NM E AND 60 NM W OF TROUGH N OF 20N.
.24 HOUR FORECAST TROUGH 30N159W 25N161W 20N164W 15N172W.
.48 HOUR FORECAST TROUGH 30N159W 22N166W 15N172W.

.WINDS 20 TO 25 KT N OF 25N BETWEEN 177E AND 163W...AND N OF 26N
BETWEEN 156W AND 152W. E WINDS 20 TO 25 KT FROM 07N TO 15N E OF
156W...AND FROM 11N TO 23N BETWEEN 164E AND 174E.
.24 HOUR FORECAST WINDS 20 TO 25 KT N OF 28N BETWEEN 173W AND
163W...AND N OF 25N BETWEEN 161W AND 155W. E WINDS 20 TO 25 KT W
OF LINE 22N160E 21N166E 12N171E 11N160E...AND FROM 08N TO 20N E OF
156W.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 27N BETWEEN 159W AND
154W. E WINDS 20 TO 25 KT FROM 08N TO 19N E OF 166W.

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

.SEAS 12 TO 16 FT N OF LINE 30N177E 27N178E 23N179W 26N171W
30N169W. SEAS 8 TO 12 FT ELSEWHERE IN AREA BOUNDED BY 30N174E
30N152W 24N155W 14N140W 08N140W 03N150W 12N170W 06N180W 12N160E
26N160E 26N172E 30N174E.
.24 HOUR FORECAST SEAS 8 TO 10 FT IN AREA BOUNDED BY 24N160E
30N175E 10N173W 10N160E 24N160E...AND FROM 04N TO 19N E OF 166W.
SEAS 8 TO 9 FT N OF 26N BETWEEN 175W AND 155W.
.48 HOUR FORECAST SEAS 8 TO 10 FT N OF 28N BETWEEN 1612 AND 155W.
SEAS 8 TO 9 FT FROM 11N TO 20N W OF 167E...AND FROM 07N TO 19N E
OF 165W.

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

.ITCZ 06N140W 04N145W 06N162W 09N170W 09N175W 08N178W 05N171E.
ISOLATED TO SCATTERED MODERATE TSTMS WITHIN 150 NM OF ITCZ W OF
160W...AND WITHIN 90 NM OF ITCZ E OF 160W.

.ISOLATED MODERATE TSTMS S OF 16N W OF 171E.

$$

.FORECASTER JELSEMA. HONOLULU HI.