136
FZPN40 PHFO 192215
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SUN MAY 19 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 19 2024.
24 HOUR FORECAST VALID 1800 UTC MAY 20 2024.
48 HOUR FORECAST VALID 1800 UTC MAY 21 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N159W 25N161W 21N164W 16N170W MOVING E SLOWLY ALONG
30N...AND W SLOWLY ELSEWHERE. SE TO S WINDS 20 TO 30 KT WITHIN
300 NM E OF TROUGH N OF 25N. SEAS 8 TO 9 FT WITHIN 120 NM E OF
TROUGH. ISOLATED MODERATE TSTMS WITHIN 240 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH 30N158W 24N164W 18N170W. SE WINDS
20 TO 25 KT N OF 27N BETWEEN TROUGH AND 150W. SEAS SUBSIDED
TO 8 FT OR LOWER.
.48 HOUR FORECAST TROUGH 30N161W 21N169W 16N177W. WINDS
DIMINISHED TO 20 KT OR LESS.

.NE TO E WINDS 20 TO 25 KT FROM 07N TO 15N E OF 165W...AND W OF
LINE 20N160E 07N173E.
.24 HOUR FORECAST NE TO E WINDS 20 TO 25 KT E OF LINE 23N150W
07N170W.
.48 HOUR FORECAST WINDS 20 TO 25 KT E OF LINE 25N150W 07N164W.

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

.SEAS MAINLY 8 TO 9 FT FROM 10N TO 20N W OF 180W.
.24 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER.

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

.ITCZ 06N140W 06N153W 07N167W 09N178W 09N175E 05N160E. SCATTERED
MODERATE TSTMS WITHIN 210 NM OF ITCZ E OF 150W...AND W OF 175E.
ISOLATED MODERATE TSTMS ELSEWHERE WITHIN 240 NM OF ITCZ.

$$

.FORECASTER AHUE. HONOLULU HI.