The High Seas Forecast for the Central North Pacific

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FZPN40 PHFO 271530
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC MON MAR 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC MAR 27 2017.
24 HOUR FORECAST VALID 1200 UTC MAR 28 2017.
48 HOUR FORECAST VALID 1200 UTC MAR 29 2017.

.WARNINGS.

...GALE WARNING...
.FRONT 30N161E 29N160E MOVING E 25 KT. WINDS 20 TO 30 KT N OF LINE
30N169E 27N160E. SEAS 8 TO 10 FT N OF FRONT.
.12 HOUR FORECAST FRONT 30N165E 24N160E. WINDS 20 TO 35 KT N OF
LINE 30N177E 24N160E. SEAS 8 TO 12 FT N OF 29N W OF 170E.
.24 HOUR FORECAST FRONT 30N171E 22N160E. WINDS 35 TO 45 KT N OF
LINE 30N168E 28N164E 29N160E. WINDS 20 TO 35 KT ELSEWHERE N OF LINE
30N177W 25N170E 23N160E. SEE SEAS BELOW.
.48 HOUR FORECAST FRONT 30N175W 22N175E 19N160E. WINDS 20 TO 35
KT N OF LINE 30N164W 25N180W 30N162E. WINDS 20 TO 25 KT
ELSEWHERE W OF FRONT. SEE SEAS BELOW.

.SYNOPSIS AND FORECAST.

.FRONT 30N170W 25N179E 30N169E MOVING E 30 KT. ISOLATED MODERATE
TSTMS WITHIN 120 NM E OF FRONT E OF 178W.
.24 HOUR FORECAST FRONT 30N161W 27N169W 30N179W.
.48 HOUR FORECAST FRONT MOVED N OF FORECAST AREA.

.FRONT 28N140W 28N146W MOVING S 10 KT AND DISSIPATING.
.24 HOUR FORECAST FRONT DISSIPATED.

.RIDGE 30N147W 25N165W 23N178E MOVING E 10 KT.

.WINDS 20 TO 25 KT N OF 03N AND S OF LINE 22N140W 22N157W 15N180E
13N160E.
.24 HOUR FORECAST WINDS 20 TO 25 KT N OF 04N AND S OF LINE 25N140W
16N170W 10N180E 10N160E.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF 05N AND S OF LINE 23N140W
18N166W 10N179E 08N160E.

.REMAINDER OF AREA WINDS 20 KT OR LESS.

.SEAS 8 TO 13 FT N OF LINE 04N140W 00N158W 00N175W 08N163E 22N176W
30N170E.
.24 HOUR FORECAST SEAS 24 TO 30 FT N OF LINE 30N162E 29N160E. SEAS 18
TO 24 FT ELSEWHERE N OF LINE 30N164E 28N160E. SEAS 12 TO 18 FT
ELSEWHERE N OF LINE 30N168E 27N160E. SEAS 8 TO 12 FT ELSEWHERE N OF
LINE 30N176E 25N160E. SEAS 8 TO 12 FT E OF LINE 30N176E 22N171W
10N172E 00N175W.
.48 HOUR FORECAST SEAS 18 TO 26 FT N OF LINE 30N180E 26N169E 30N166E.
SEAS 12 TO 18 FT ELSEWHERE N OF LINE 30N175W 19N160E. SEAS 8 TO 12 FT
ELSEWHERE N OF LINE 30N170W 25N175E 17N160E. SEAS 8 TO 10 FT E OF
LINE 30N170W 07N173E 00N153W.

.REMAINDER OF AREA SEAS 8 FT OR LESS.

.ITCZ 04N180E 06N166E 05N160E. SCATTERED MODERATE TO STRONG TSTMS
WITHIN 120 N OF ITCZ.

.ISOLATED MODERATE TSTMS E OF 145W BETWEEN 01N AND 09N.

$$

.FORECASTER POWELL. HONOLULU HI.


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