High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 190332
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC SUN NOV 19 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 NOV 19 2017.
24 HOUR FORECAST VALID 0000 UTC NOV 20 2017.
48 HOUR FORECAST VALID 0000 UTC NOV 21 2017.

.WARNINGS.

...GALE WARNING...
.LOW 28N172E 1010 MB NEARLY STATIONARY. ANOTHER LOW 27N168E 1011 MB
MOVING S SLOWLY. TROUGH FROM 30N171E TO FIRST LOW TO 21N172E TO
18N171E NEARLY STATIONARY. SE WINDS 30 TO 35 KT N OF LINE FROM
30N176E TO 27N179E. SE TO E WINDS 20 TO 30 KT ELSEWHERE N OF LINE
FROM 30N174E TO 26N177E TO 21N176W TO 21N175W. N TO NE WINDS 20 TO
25 KT N OF 29N BETWEEN 165E AND 169E. ISOLATED MODERATE TSTMS N OF
LINE FROM 30N174E TO 24N177E TO 24N180E...AND FROM 30N TO 26N
BETWEEN 167E AND 172E.
.24 HOUR FORECAST LOWS DISSIPATED. TROUGH FROM 30N168E TO 18N175E.
SE WINDS 30 TO 35 KT N OF 26N BETWEEN 176E TO 179E. E TO SE WINDS
20 TO 30 KT ELSEWHERE N OF LINE FROM 30N175E TO 20N179E TO 18N175W.
.48 HOUR FORECAST TROUGH FROM 30N169E TO 25N174E TO 18N174E. SE TO E
WINDS 30 TO 35 KT FROM 30N TO 25N BETWEEN 174E AND 177E. SE TO E
WINDS 20 TO 30 KT ELSEWHERE N OF LINE FROM 27N171E TO 26N174E TO
17N177W.

.SYNOPSIS AND FORECAST.

.WEAK FRONT FROM 30N149W TO 25N151W TO 22N157W MOVING SE SLOWLY.
WINDS 20 TO 30 KT N OF LINE FROM 28N156W TO 20N175W. S WINDS 20 TO
25 KT N OF 25N BETWEEN 140W AND 144W. ISOLATED MODERATE TSTMS
BETWEEN 140W AND A LINE FROM 30N144W TO 23N148W.
.24 HOUR FORECAST WEAK FRONT FROM 30N148W TO 19N151W TO 15N154W. S
TO SW WINDS 20 TO 30 KT E OF LINE FROM 30N141W TO 23N144W TO
21N144W. WINDS 20 TO 30 KT ELSEWHERE N OF 26N BETWEEN 151W AND
170W...AND N OF 17N BETWEEN 170W AND 175W. SW WINDS 20 TO 25 KT
WITHIN 60 NM E OF FRONT BETWEEN 29N AND 27N.
.48 HOUR FORECAST WEAK FRONT FROM 30N144W TO 19N150W. WINDS 20 TO 30
KT E OF 152W N OF 24N. ALSO NE TO E WINDS 20 TO 25 KT FROM 30N TO
20N BETWEEN 167W AND 177W.

.TROUGH FROM 21N150W TO 15N154W TO 06N180W NEARLY STATIONARY.
ISOLATED MODERATE TSTMS WITHIN 120 NM OF TROUGH...AND ELSEWHERE FROM
07N TO 16N BETWEEN 143W AND 157W...AND FROM 16N TO 23N E OF 149W.
.24 HOUR FORECAST TROUGH FROM 10N175W TO 07N171E.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N174W TO 23N168W TO 20N163W TO 18N157W MOVING W SLOWLY.

.SEAS 12 TO 17 FT N OF LINE FROM 29N154W TO 27N160W TO 27N165W TO
30N170W. SEAS 12 TO 14 FT N OF 28N BETWEEN 176E AND 180E. SEAS 8 TO
13 FT ELSEWHERE N OF LINE FROM 30N146W TO 20N168W TO 16N171W TO
17N175W TO 29N172E TO 22N160E.
.24 HOUR FORECAST SEAS 12 TO 17 FT N OF LINE FROM 30N173E TO
24N179W. SEAS 12 TO 16 FT N OF 26N BETWEEN 150W AND 167W. SEAS 8 TO
12 FT ELSEWHERE N OF LINE FROM 24N146W TO 23N148W TO 17N170W TO
19N179W TO 24N175E TO 25N167E TO 30N162E...AND E OF LINE FROM
30N142W TO 24N145W TO 22N144W.
.48 HOUR FORECAST SEAS 12 TO 15 FT N OF 26N BETWEEN 148W AND
157W...AND FROM 24N TO 29N BETWEEN 174E AND 180E. SEAS 8 TO 13 FT
ELSEWHERE N OF LINE FROM 24N140W TO 24N143W TO 17N152W TO 21N157W TO
21N159W TO 13N161W TO 13N174W TO 24N168E TO 27N160E.

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

.SCATTERED MODERATE TO STRONG TSTMS FROM 02N TO 05N BETWEEN 169E AND
176E. ISOLATED MODERATE TSTMS ELSEWHERE S OF 12N E OF 170E...AND S
OF 08N BETWEEN 170E AND 180E.

$$

.HONOLULU HI.



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