357
FZPN40 PHFO 200300
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC MON MAY 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 20 2024.
24 HOUR FORECAST VALID 0000 UTC MAY 21 2024.
48 HOUR FORECAST VALID 0000 UTC MAY 22 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N158W 26N160W 21N164W 19N167W 16N169W MOVING E SLOWLY N
OF 26N...AND W SLOWLY ELSEWHERE. SE TO S WINDS 20 TO 30 KT N OF
27N BETWEEN TROUGH AND 150W...AND WITHIN 210 NM E OF TROUGH S OF
21N. SEAS 8 TO 9 FT WITHIN 120 NM E OF TROUGH. ISOLATED MODERATE
TSTMS WITHIN 240 NM E OF TROUGH N OF 25N.
.24 HOUR FORECAST TROUGH 30N158W 24N164W 18N170W. WINDS DIMINISHED
TO 20 KT OR LESS AND SEAS SUBSIDED TO 8 FT OR LOWER.
.48 HOUR FORECAST TROUGH 30N162W 21N169W 12N179W.

.NE TO E WINDS 20 TO 25 KT FROM 07N TO 20N E OF 155W...AND W OF
LINE 20N160E 07N173E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT E OF LINE 23N150W
07N162W.
.48 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE 25N155W 07N164W.

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

.SEAS MAINLY 8 TO 9 FT FROM 10N TO 20N W OF 164E.
.24 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER.

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

.ITCZ 07N140W 05N156W 06N169W 10N177E 10N171E 08N160E. SCATTERED
MODERATE TSTMS WITHIN 210 NM OF ITCZ E OF 152W...AND W OF 175E.
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 240 NM OF ITCZ.

$$

.FORECASTER AHUE. HONOLULU HI.