High Seas Forecast
Issued by NWS

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336
FZPN40 PHFO 200332
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC WED MAR 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MAR 20 2019.
24 HOUR FORECAST VALID 0000 UTC MAR 21 2019.
48 HOUR FORECAST VALID 0000 UTC MAR 22 2019.

.WARNINGS.

...GALE WARNING...
.36 HOUR FORECAST NEW LOW 27N163E 1007 MB. FRONT 25N175W 27N177E
THROUGH LOW TO 24N160E. WINDS 30 TO 35 KT WITHIN 90 NM N OF LOW N
QUADRANT...WINDS 20 TO 30 KT ELSEWHERE WITHIN 300 NM N OF FRONT.
.48 HOUR FORECAST LOW 26N162E 1009 MB. FRONT 25N175W 26N178W THROUGH
LOW TO 24N160E. WINDS DIMINISHED TO 20 TO 30 KT WITHIN 300 NM N OF
FRONT.

.SYNOPSIS AND FORECAST.

.FRONT 30N171W 26N180W 23N170E 22N160E MOVING SE 25 KT E OF 175E...
MOVING NE 10 KT W OF 175E. WINDS 20 TO 30 KT N OF LINE 30N158W
26N170W 25N180W 30N180W...WINDS 20 TO 25 KT WITHIN 180 NM N OF FRONT
W OF 180W.
.24 HOUR FORECAST FRONT 30N154W 26N161W 25N170W 26N160E. WINDS 20 TO
30 KT N OF LINE 30N144W 27N160W 30N163W...WINDS 20 TO 25 KT W OF LINE
30N175E 26N170W 26N160E.
.36 HOUR FORECAST FRONT 30N147W 26N154W 25N175W. WINDS 20 TO 25 KT N
OF LINE 30N140W 28N148W 30N152W AND WITHIN 180 NM N OF FRONT W OF
160W.SEE GALE WARNING ABOVE FOR NEW LOW AND THE PART OF THE FRONT W
OF 175W.
.48 HOUR FORECAST FRONT 30N141W 26N150W 25N175W. WINDS 20 TO 25 KT
WITHIN 120 NM SE OF FRONT E OF 143W AND WITHIN 120 NM N OF FRONT W OF
165W. SEE GALE WARNING ABOVE FOR NEW LOW AND THE PART OF THE FRONT W
OF 175W.

.ITCZ 06N154W 04N170E. ISOLATED MODERATE TSTMS WITHIN 100 NM OF ITCZ.

.NE WINDS 20 TO 25 KT FROM 12N TO 06N E OF 170W.
.24 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 13N TO 06N E OF 175E.
.48 HOUR FORECAST NE WINDS 20 TO 25 KT FROM 15N TO 05N E OF 180W.

.HIGH 26N147W 1019 MB. RIDGE 23N140W THROUGH HIGH TO 21N177W
22N174E. RIDGE AND HIGH MOVING E 30 KT.
.24 HOUR FORECAST HIGH MOVED E OF AREA.

.SEAS 12 TO 15 FT N OF LINE 30N160W 27N168W 30N172E...SEAS 8 TO 12 FT
ELSEWHERE NW OF LINE 30N155W 22N160E. SEAS 12 TO 13 FT N AND E OF
LINE 05N140W 00N165W 05N175E 15N170E 30N150W.
.24 HOUR FORECAST SEAS 12 TO 15 FT N OF 26N BETWEEN 150W AD 175W...
SEAS 8 TO 12 FT ELSEWHERE NE OF LINE 00N150W 25N160E.
.48 HOUR FORECAST SEAS 12 TO 16 FT N OF LINE 30N145W 25N155W
30N165W...SEAS 8 TO 12 FT ELSEWHERE NE OF LINE 05N140W 05N180W
20N180W 25N160E.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.HONOLULU FORECASTER.



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