997
FZPN40 PHFO 181021
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC THU JUL 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL
JULY 29 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN
DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND
GRAPHICAL PRODUCTS FOR THE OFFSHORE AND HIGH SEAS AREAS ONLY.
TO LEARN MORE PLEASE VISIT
HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP


SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 0600 UTC JUL 18 2024.
24 HOUR FORECAST VALID 0600 UTC JUL 19 2024.
48 HOUR FORECAST VALID 0600 UTC JUL 20 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 15N148W 13N147W 10N148W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH 14N152W 10N150W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.WEAK FRONT 30N147W 28N152W NEAR STATIONARY.
.24 HOUR FORECAST FRONT DISSIPATED.

.WINDS 20 TO 25 KT FROM 09N TO 15N BETWEEN 176E AND 165W.
.24 HOUR FORECAST WINDS EASED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 10 FT FROM 08N TO 17N BETWEEN 170E AND 160W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 10N TO 15N BETWEEN 179E AND
171W.
.48 HOUR FORECAST SEAS DECREASED 8 FT OR LESS.

.SEAS 8 FT OR LESS REMAINDER FORECAST AREA.

.ITCZ 12N140W 12N145W...AND 12N149W 08N165W 08N179W 10N170E
07N160E. SCATTERED MODERATE TSTMS WITHIN 250 NM S OF ITCZ W OF
170W.

.ISOLATED MODERATE TSTMS N OF 28N BETWEEN 174E AND 179W.

$$


.FORECASTER PIERCE. HONOLULU HI.