High Seas Forecast
Issued by NWS

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FZPN40 PHFO 252229
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC FRI MAY 25 2018

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 25 2018.
24 HOUR FORECAST VALID 1800 UTC MAY 26 2018.
48 HOUR FORECAST VALID 1800 UTC MAY 27 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.RIDGE FROM 30N175W TO 26N166E.
.24 HOUR FORECAST RIDGE FROM 30N169W TO 30N175E TO 26N166E. DEVELOPING
HIGHS ALONG RIDGE NEAR 30N169W 1025 MB AND NEAR 30N175E 1024 MB.
.48 HOUR FORECAST HIGHS NEAR 30N172W 1025 MB AND JUST N OF FORECAST
AREA NEAR 32N175E 1024 MB. RIDGE FROM SECOND HIGH TO 24N160E.

.TROUGH DEVELOPING OVER FORECAST AREA.
.48 HOUR FORECAST TROUGH FROM 26N166W TO 30N160W.

.WINDS E TO NE 20 TO 25 KT WITHIN AN AREA BOUNDED BY 25N166W 25N140W
12N140W 08N160W 08N175E 16N175E 25N166W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 20N TO 06N W OF 153W.
.48 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 21N TO 07N W OF 170W...
AND ALSO FROM 16N TO 09N E OF 145W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 9 FT FROM 18N TO 10N BETWEEN 173E AND 165W.
.24 HOUR FORECAST SEAS 8 TO 9 FT FROM 19N TO 09N BETWEEN 163E AND 165W.
.48 HOUR FORECAST SEAS 8 TO 10 FT FROM 19N TO 09N BETWEEN 163E AND 170W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 08N140W TO 07N148W TO 08N158W. ISOLATED MODERATE TSTMS WITHIN
150 NM EITHER SIDE OF CONVERGENCE LINE.

.OTHERWISE ISOLATED MODERATE TSTMS S OF 16N W OF 179W.

$$

.FORECASTER BEDAL. HONOLULU HI.



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