000
FZPN40 PHFO 211535
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC SAT JUL 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC JUL 21 2018.
24 HOUR FORECAST VALID 1200 UTC JUL 22 2018.
48 HOUR FORECAST VALID 1200 UTC JUL 23 2018.

.WARNINGS.

...GALE WARNING...
.LOW JUST W OF FORECAST AREA 21N159E 1009 MB MOVING N 10 KT. SE TO E
WINDS 20 TO 25 KT W OF 162E BETWEEN 20N AND 24N. ISOLATED MODERATE
TO STRONG TSTMS FROM 15N TO 29N W OF 171E.
.24 HOUR FORECAST LOW JUST W OF FORECAST AREA 25N159E 1005 MB. SE TO
E WINDS 20 TO 30 KT W OF 164E BETWEEN 23N AND 28N.
.48 HOUR FORECAST LOW...POSSIBLE TC...W OF FORECAST AREA 27N158E
1001 MB. WINDS 30 TO 35 KT W OF 163E BETWEEN 27N AND 30N. WINDS 20
TO 30 KT ELSEWHERE N AND W OF LINE FROM 22N160E TO 29N172E TO
30N172E.

.SYNOPSIS AND FORECAST.

.LOW 13N165W 1010 MB MOVING SW SLOWLY. ISOLATED MODERATE TSTMS FROM
04N TO 14N BETWEEN 157W AND 174W.
.24 HOUR FORECAST LOW DISSIPATED.

.TROUGH FROM 29N167W TO 25N169W TO 20N171W MOVING W 10 KT. ISOLATED
MODERATE TSTMS WITHIN 60 NM OF TROUGH N OF 22N...ELSEWHERE FROM 21N
TO 27N BETWEEN 164W AND 169W...AND N OF 27N BETWEEN 161W AND 167W.
.24 HOUR FORECAST WEAK TROUGH FROM 28N173W TO 22N175W.
.48 HOUR FORECAST WEAK TROUGH FROM 27N179E TO 23N178E.

.NE TO E WINDS 20 TO 25 KT N OF 28N BETWEEN 170W AND 178W.
.24 HOUR FORECAST E WINDS 20 TO 25 KT N OF 25N BETWEEN 164W AND 170E.
.48 HOUR FORECAST E WINDS 20 TO 25 KT N OF 26N BETWEEN 170W AND
174E...AND FROM 14N TO 17N BETWEEN 150W AND 156W.

.SEAS 8 TO 10 FT W OF 162E BETWEEN 20N AND 24N.
.24 HOUR FORECAST SEAS 8 TO 13 FT W OF 163E BETWEEN 23N AND 27N.
.48 HOUR FORECAST SEAS 12 TO 14 FT W OF 163E N OF 28N. SEAS 8 TO 12
FT ELSEWHERE N OF LINE FROM 24N160E TO 27N172E. SEAS 8 TO 10 FT N OF
LINE FROM 27N172E TO 26N172W.

.WINDS 20 KT OR LESS REMAINDER FORECAST AREA.

.SEAS 8 FT OR LOWER REMAINDER FORECAST AREA.

.ITCZ FROM 09N177W TO 08N161E. SCATTERED MODERATE TO STRONG TSTMS
FROM 06N TO 09N BETWEEN 169E AND 173E...AND WITHIN 60 NM OF LINE
FROM 12N175W TO 12N180W. ISOLATED MODERATE TO STRONG TSTMS ELSEWHERE
S OF 13N W OF 174W.

.MONSOON TROUGH FROM 13N140W TO 12N150W TO 09N157W. ISOLATED
MODERATE TSTMS FROM 05N TO 15N E OF 160W.

$$

.HONOLULU FORECAST OFFICE.