High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 251004 CCA
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC SUN FEB 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FEB 25 2018.
24 HOUR FORECAST VALID 0600 UTC FEB 26 2018.
48 HOUR FORECAST VALID 0600 UTC FEB 27 2018.

.WARNINGS.

...GALE WARNING...
.TROUGH FROM 30N168W TO 20N169W TO 11N169W NEARLY STATIONARY. SE
WINDS 25 TO 35 KT KT N OF 26N BETWEEN 165W AND 158W. SE WINDS 20
TO 30 KT ELSEWHERE N OF 20N E OF 165W. WIDELY SCATTERED MODERATE
TSTMS BETWEEN TROUGH AND 158W...AND ISOLATED TSTMS ELSEWHERE
BETWEEN 171W AND 155W.
.24 HOUR FORECAST TROUGH FROM 30N167W TO 18N168W. E TO SE 20 TO 30
KT E OF 165W N OF 18N.
.48 HOUR FORECAST TROUGH FROM 30N167W TO 18N167W. E TO SE WINDS 20
TO 30 KT E OF TROUGH N OF 18N.

.SYNOPSIS AND FORECAST.

.COR LOW 28N164E 1018 MB NEARLY STATIONARY. WEAKENING FRONT FROM
30N169E TO LOW TO 26N160E...NEARLY STATIONARY.
.24 HOUR FORECAST FRONT FROM 30N168E TO 29N165E TO 28N160E.
.36 HOUR FORECAST S WINDS INCREASING TO 20 TO 25 KT W OF 165E N
OF 27N.
.48 HOUR FORECAST NEW FRONT 30N162E TO 27N160E. SW WINDS 20 TO 30
KT WITHIN 360 NM E OF FRONT. NW WINDS 20 TO 20 KT W OF FRONT.

.RIDGE FROM 30N174E TO 27N170E TO 25N165E NEARLY STATIONARY.

.E WINDS 20 TO 30 KT BETWEEN 20N AND 10N E OF 160W.
.24 HOUR FORECAST E TO NE WINDS 20 TO 30 KT BETWEEN 18N AND 10N E
OF 160W.
.48 HOUR FORECAST E TO NE WINDS 20 TO 30 KT BETWEEN 18N AND 08N E
OF 165W.

.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.

.SEAS 8 TO 11 FT IN THE AREA BOUNDED BY 30N154W 25N158W 23N140W
07N140W 07N154W 30N168W 30N154W.
.24 HOUR FORECAST SEAS 8 TO 12 FT IN THE AREA BOUNDED BY 30N154W
25N158W 23N140W 07N140W 07N154W 30N168W 30N154W.
.48 HOUR FORECAST SEAS 8 TO 13 FT E OF 165W N OF 17N...HIGHEST
SEAS BETWEEN 22N AND 14N E OF 155W.

.SEAS 8 FT OR LESS OVER REMAINDER OF FORECAST AREA.

.ITCZ FROM 07N140W TO 10N169W TO 05N160E. SCATTERED MODERATE
TSTMS WITHIN 150 NM N OF ITCZ W OF 162E AND ISOLATED TSTMS
ELSEWHERE WITHIN 120 NM OF REST OF ITCZ.

.ISOLATED TSTMS S OF 08N W OF 180W.

$$

.FORECASTER LAU. HONOLULU HI.



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