High Seas Forecast
Issued by NWS

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FZPN40 PHFO 272231
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC SAT MAY 27 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 27 2017.
24 HOUR FORECAST VALID 1800 UTC MAY 28 2017.
48 HOUR FORECAST VALID 1800 UTC MAY 29 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N143W TO 26N146W MOVING ENE SLOWLY THENCE
A STATIONARY FRONT TO 24N153W.
.24 HOUR FORECAST FRONT FROM 30N140W TO 28N146W TO 27N151W.
.48 HOUR FORECAST FRONT DISSIPATED NE OF FORECAST AREA.

.TROUGH FROM 16N154W TO 19N152W TO 21N149W MOVING W 10 KT.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 18N167W TO 21N163W TO 25N160W MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH FROM 18N170W TO 22N165W TO 26N162W.
.48 HOUR FORECAST TROUGHS FROM 18N173W TO 22N167W AND FROM
26N162W TO 30N158W.

.HIGH JUST N OF FORECAST AREA NEAR 33N178W 1025 MB NEARLY
STATIONARY.
.24 HOUR FORECAST HIGH NEAR 29N177W 1021 MB.
.48 HOUR FORECAST DISSIPATING HIGH NEAR 30N171W 1019 MB.

.WINDS NE 20 TO 25 KT FROM 25N TO 20N BETWEEN 174W AND 178W.
.12 HOUR FORECAST WINDS DIMINISHED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 9 FT FROM 25N TO 19N BETWEEN 172E AND 176W.
.24 HOUR FORECAST SEAS SUBSIDED TO 8 FT OR LOWER.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 07N140W TO 09N150W TO 04N170W TO 06N179E. ISOLATED
MODERATE TO STRONG TSTMS WITHIN 210 NM EITHER SIDE OF LINE
OF CONVERGENCE.

.OTHERWISE SCATTERED MODERATE TSTMS FROM 26N TO 19N BETWEEN
168E AND 175E. ISOLATED MODERATE TSTMS ELSEWHERE S OF 12S
W OF 171E.

$$

.FORECASTER BEDAL. HONOLULU HI.



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