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FZPN40 PHFO 230344
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC THU MAY 23 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 23 2019.
24 HOUR FORECAST VALID 0000 UTC MAY 24 2019.
48 HOUR FORECAST VALID 0000 UTC MAY 25 2019.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.COLD FRONT FROM 30N174W TO 28N179E MOVING SE 15 KT. WINDS SW TO NW
20 TO 25 KT OVER FORECAST WATERS N OF 28N BETWEEN 173E AND 167W.
.24 HOUR FORECAST FRONT FROM 30N167W TO 28N169W TO 25N174W. ASSOCIATED
WINDS INCLUDED WITH STATIONARY FRONT DESCRIBED IMMEDIATELY BELOW.
.48 HOUR FORECAST FRONT MERGED WITH STATIONARY FRONT DESCRIBED
IMMEDIATELY BELOW. ASSOCIATED WINDS INCLUDED WITH STATIONARY FRONT
DESCRIBED IMMEDIATELY BELOW.

.STATIONARY FRONT FROM 21N160E TO 18N173E TO 19N175W TO 23N169W TO
30N160W. WIND NE TO E 20 TO 25 KT WITHIN 420 NM N OF FRONT W OF 173E.
SCATTERED MODERATE TSTMS FROM 22N TO 16N BETWEEN 170E AND 179W.
.24 HOUR FORECAST FRONT FROM 21N160E TO 19N170E TO 19N179W TO 23N169W
TO 30N160W. WIND NE TO SE 20 TO 25 KT WITHIN 240 NM N OF FRONT W OF
179W. ALSO WINDS S TO NW 20 TO 25 KT OVER FORECAST WATERS N OF 26N
BETWEEN 178W AND 158W.
.48 HOUR FORECAST FRONT FROM 21N160E TO 19N173E TO 21N179W TO 23N169W
TO 30N160W. DEVELOPING LOW ALONG FRONT NEAR 21N179W 1012 MB. WINDS 20
TO 30 KT WITHIN 300 NM OF CENTER N SEMICIRCLE. ALSO WINDS E TO SE 20
TO 25 KT WITHIN 180 NM N OF FRONT W OF 173E.

.RIDGE FROM 30N145W TO 22N157W.

.RIDGE FROM 30N167E TO 25N174E.
.24 HOUR FORECAST RIDGE FLATTENED OVER FORECAST AREA.

.OTHERWISE WINDS NE TO E 20 TO 25 KT FROM 16N TO 10N BETWEEN 155W AND
145W.
.24 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 24N TO 12N BETWEEN
152W AND 140W.
.48 HOUR FORECAST WINDS NE TO E 20 TO 25 KT FROM 22N TO 14N BETWEEN
152W AND 140W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 TO 12 FT OVER FORECAST WATERS N OF 28N BETWEEN 168E AND 168W.
ALSO SEAS 8 TO 9 FT FROM 26N TO 20N W OF 170E.
.24 HOUR FORECAST SEAS 8 TO 12 FT OVER FORECAST WATERS N OF A LINE FROM
30N161W TO 22N175W TO 20N169E. SEAS 8 TO 9 FT FROM 22N TO 12N BETWEEN
152W AND 140W.
.48 HOUR FORECAST SEAS 8 TO 10 FT OVER FORECAST WATERS N OF A LINE FROM
30N154W TO 23N169W TO 19N173E...AND ALSO FROM 22N TO 14N BETWEEN 154W
AND 142W.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 08N140W TO 05N153W TO 03N167W TO 05N179W. SCATTERED MODERATE
TSTMS WITHIN 240 NM EITHER SIDE OF LINE OF CONVERGENCE.

.OTHERWISE ISOLATED MODERATE TO STRONG TSTMS S OF 05N W OF 175E.

$$

.FORECASTER BEDAL. HONOLULU HI.


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