603
FZPN40 PHFO 182201
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC MAY 18 2024.
24 HOUR FORECAST VALID 1800 UTC MAY 19 2024.
48 HOUR FORECAST VALID 1800 UTC MAY 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N160W 26N160W 18N164W 13N170W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS WITHIN 270 NM E OF TROUGH N OF 17N. W TO SW WINDS
20 TO 25 KT N OF 26N BETWEEN 175W AND TROUGH. SE WINDS 20 TO 25 KT
WITHIN 330 NM E OF TROUGH N OF 25N.
.24 HOUR FORECAST TROUGH 30N161W 26N161W 20N166W 15N168W. SE WINDS
20 TO 25 KT WITHIN 210 NM E OF TROUGH N OF 16N.
.48 HOUR FORECAST TROUGH 30N159W 20N167W 15N175W. SE WINDS 20 TO 25
KT WITHIN 330 NM E OF TROUGH N OF 29N.

.E WINDS 20 TO 25 KT FROM 06N TO 16N E OF 159W...AND W OF A LINE
10N176W 22N165E.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 07N TO 11N E OF
160W...AND W OF A LINE 09N173E 21N160E.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT E OF A LINE 07N172W
18N158W.

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

SEAS 8 TO 11 FT N OF A LINE 30N158W 15N171W 19N174E. SEAS 8 TO 10
FT WITHIN AN AREA BOUNDED BY 11N180E 24N164E 23N160E 14N160E
09N172E 11N180E. SEAS 8 TO 9 FT FROM 10N TO 15N BETWEEN 154W AND
160W.
.24 HOUR FORECAST SEAS 8 TO 10 FT WITHIN 120 NM E OF A LINE 19N166W
30N160W...AND FROM 10N TO 17N W OF 180E.
.48 HOUR FORECAST SEAS 8 TO 9 FT FROM 07N TO 12N BETWEEN 143W AND
165W.

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

.ITCZ 05N140W 03N149W 05N156W 05N161W 08N170W 08N174W 07N177E
03N168E 03N160E. SCATTERED MODERATE TO STRONG TSTMS WITHIN 120 NM
OF ITCZ BETWEEN 149W AND 163W. SCATTERED MODERATE TSTMS WITHIN 270
NM N AND 120 NM S OF ITCZ W OF 173W. ISOLATED MODERATE TSTMS WITHIN
90 NM OF ITCZ E OF 147W.

.ISOLATED MODERATE TSTMS S OF 12N W OF 166E.


$$

.FORECASTER TSAMOUS. HONOLULU HI.