High Seas Forecast
Issued by NWS

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FZPN40 PHFO 281533
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SUN MAY 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAY 28 2017.
24 HOUR FORECAST VALID 1200 UTC MAY 29 2017.
48 HOUR FORECAST VALID 1200 UTC MAY 30 2017.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH FROM 30N142W TO 25N149W NEARLY STATIONARY.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 22N151W TO 20N153W TO 17N154W MOVING NW SLOWLY.
ISOLATED MODERATE TSTMS WITHIN 60 NM OF 21N153W...AND WITHIN 120 NM
S AND E OF TROUGH S OF 18N.
.24 HOUR FORECAST TROUGH FROM 24N155W TO 21N158W.
.48 HOUR FORECAST TROUGH JOINED WITH NEXT TROUGH DESCRIBED BELOW.

.TROUGH FROM 23N161W TO 21N165W TO 17N168W MOVING W SLOWLY S OF 22N
AND NEARLY STATIONARY ELSEWHERE.
.24 HOUR FORECAST TROUGH FROM 22N165W TO 20N170W TO 17N172W. ANOTHER
TROUGH FROM 29N159W TO 23N161W.
.48 HOUR FORECAST TROUGH FROM 22N171W TO 19N175W. SECOND TROUGH FROM
29N155W TO 25N159W TO 20N157W.

.HIGH 29N177W 1021 MB MOVING SSW SLOWLY. RIDGE FROM 30N152W TO
29N169W TO HIGH TO 30N180W MOVING S SLOWLY.
.24 HOUR FORECAST HIGH 28N178W 1020 MB.
.48 HOUR FORECAST HIGH 27N167W 1021 MB.

.48 HOUR FORECAST E TO NE WINDS 20 TO 25 KT...SEAS 8 TO 9 FT FROM
06N TO 11N E OF 165W.

.OTHERWISE WINDS 20 KT OR LESS...SEAS 8 FT OR LESS REMAINDER
FORECAST AREA.

.ITCZ FROM 06N140W TO 05N146W. ISOLATED MODERATE TSTMS FROM 04N TO
09N E OF 146W.

.ISOLATED MODERATE TSTMS S OF 13N W OF 170E...FROM 02N TO 07N
BETWEEN 170E AND 173W...AND WITHIN 60 NM OF A LINE FROM 08N157W TO
06N172W TO 09N152W.

$$

.HONOLULU HI.



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