High Seas Forecast
Issued by NWS

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FZPN40 PHFO 212251
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC THU MAR 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

PLEASE SEE HTTPS://OCEAN.WEATHER.GOV/PROPOSED_HIGH_SEAS_TROPICAL.PHP
FOR A PROPOSAL...AND A REQUEST FOR COMMENTS...TO INCREASE
READABILITY OF THE HIGH SEAS FORECAST (WEB ADDRESS LOWERCASE).

SECURITE

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

SYNOPSIS VALID 1800 UTC MAR 21 2024.
24 HOUR FORECAST VALID 1800 UTC MAR 22 2024.
48 HOUR FORECAST VALID 1800 UTC MAR 23 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT 30N167E 25N160E MOVING E 25 KT. SW WINDS 20 TO 30
KT WITHIN 270 NM E OF FRONT N OF 26N. W WINDS 20 TO 30 KT
W OF FRONT. SEE SEAS BELOW.
.24 HOUR FORECAST FRONT 30N176E 18N160E. SW WINDS 20 TO 25 KT
WITHIN 120 NM E OF FRONT N OF 28N. SEE SEAS BELOW.
.48 HOUR FORECAST FRONT 30N178W 22N171E 18N160E. SW WINDS 20 TO
25 KT WITHIN 90 NM E OF FRONT N OF 26N. SEE SEAS BELOW.

.WEAK FRONT 29N140W 25N153W MOVING S 10 KT.
.24 HOUR FORECAST FRONT DISSIPATED.

.WINDS NE TO E 20 TO 25 KT FROM 18N TO 09N BETWEEN
165W AND 175W.
.24 HOUR FORECAST WINDS NE 20 TO 30 KT E OF LINE 26N140W 19N179E
08N178E 02N140W.
.48 HOUR FORECAST WINDS 20 TO 30 KT E OF LINE 25N140W 24N158W
09N179W 00N155W.

.OTHERWISE...WINDS 20 KT OR BELOW OVER REMINDER OF FORECAST AREA.

.SEAS 18 TO 21 FT N OF LINE 30N162W 28N160E. SEAS 12 TO 18 FT
ELSEWHERE N OF A LINE 30N167E 26N160E. SEAS 8 TO 12 FT ELSEWHERE
N OF LINE 30N171W 21N174E 24N160E.
.24 HOUR FORECAST SEAS 12 TO 18 FT N OF LINE 30N175E 24N170E
18N160E. SEAS 8 TO 12 FT ELSEWHERE N OF LINE 30N179E 16N160E.
 SEAS 8 TO 10 FT FROM 23N TO 11N BETWEEN 168W AND 178E. SEAS
8 TO 9 FT FROM 08N TO 03N BETWEEN 145W AND 152W.
.48 HOUR FORECAST SEAS 12 TO 14 FT N OF 22N BETWEEN 172W AND
175E. SEAS 8 TO 12 FT ELSEWHERE BOUNDED BY AREA 30N160E 30N169W
17N177W 27N160W 21N140W 17N140W 06N159W 07N178E 12N172E 10N160E
30N160E. SEAS 8 TO 12 FT S OF 07N E OF 156W.

.OTHERWISE...SEAS 8 FT OR LOWER OVER REMINDER OF FORECAST AREA.

.ITCZ 02N140W 02N154W. ISOLATED MODERATE TSTMS WITHIN 300 NM
OF ITCZ.

ISOLATED MODERATE TSTMS S OF 05N BETWEEN 178E AND 167E.

$$

.FORECASTER THOMAS. HONOLULU HI.


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