High Seas Forecast
Issued by NWS

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FZPN40 PHFO 232255
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT MAR 23 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 23 2024.
24 HOUR FORECAST VALID 1800 UTC MAR 24 2024.
48 HOUR FORECAST VALID 1800 UTC MAR 25 2024.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N178W TO 27N178E TO 23N173E MOVING ESE 10 KT.
WIND SW 20 TO 30 KT N OF 27N WITHIN 360 NM E OF FRONT. ASSOCIATED
SEAS INCLUDED BELOW.
.24 HOUR FORECAST FRONT FROM 30N171W TO 27N176W TO 23N178E. WINDS
S TO SW 20 TO 30 KT N OF 27N WITHIN 360 NM E OF FRONT. ASSOCIATED
SEAS INCLUDED BELOW.
.48 HOUR FORECAST FRONT FROM 30N165W TO 25N174W. ASSOCIATED WINDS
DIMINISHED TO 20 KT OR LESS.

.COLD FRONT FROM 30N174E TO 29N169E MOVING E 20 KT. WINDS SW TO
NW 20 TO 25 KT OVER FORECAST WATERS N OF 27N BETWEEN 167E AND
177E.
.24 HOUR FORECAST FRONT FRONT MERGED WITH FRONT DESCRIBED
IMMEDIATELY ABOVE. ASSOCIATED WINDS INCLUDED WITH FRONT DESCRIBED
IMMEDIATELY ABOVE.

.SHEAR LINE FROM 23N173E TO 20N166E TO 15N160E. WINDS N TO NE 20
TO 30 KT WITHIN 240 NM N AND NW OF SHEAR LINE.
.24 HOUR FORECAST SHEAR LINE FROM 21N173E TO 15N160E. WINDS N TO
NE 20 TO 30 KT WITHIN 240 NM N AND NW OF SHEAR LINE.
.48 HOUR FORECAST DISSIPATING SHEAR LINE FROM 25N175W TO 15N160E.
WIND NE 20 TO 25 KT WITHIN 180 NM N AND NW OF SHEAR LINE.

.OTHERWISE WINDS E TO NE 20 TO 30 KT WITHIN AN AREA BOUND BY
25N160W 25N140W 03N140W 00N145W 00N160W 07N170W 07N177E 17N177E
21N170W 25N160W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 30 KT WITHIN AN AREA BOUND
BY 27N160W 27N140W 05N140W 00N150W 00N170W 08N179E 16N179E 20N175W
27N160W.
.48 HOUR FORECAST WINDS E TO NE 20 TO 30 KT WITHIN AN AREA BOUND
BY 27N140W 05N140W 00N155W 00N170W 10N170E 16N170E 16N165W 22N155W
27N140W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 12 TO 16 FT OVER FORECAST WATERS N AND NW OF A LINE FROM
30N170W TO 20N178E. SEAS 8 TO 12 FT ELSEWHERE WITHIN AN AREA BOUND
BY 30N160E 30N168W 25N170W 20N165W 20N145W 00N145W 00N155W
08N165W 08N179W 12N175E 12N160E 30N160E.
.24 HOUR FORECAST SEAS 8 TO 12 FT WITHIN AN AREA BOUND BY 30N170E
30N155W 24N155W 24N160E 08N160E 00N160E 00N170W 08N179E 08N170E
14N160E 24N160E 30N170E.
.48 HOUR FORECAST SEAS 8 TO 10 FT WITHIN AN AREA BOUND BY 30N175W
301N40W 05N140W 00N150W 00N175W 30N175W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.SCATTERED MODERATE TSTMS FROM 14N TO 04N BETWEEN 163W AND 151W.

$$

.FORECASTER BEDAL. HONOLULU HI.


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