High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
000
FZPN40 PHFO 130329
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC WED DEC 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 DEC 13 2017.
24 HOUR FORECAST VALID 0000 UTC DEC 14 2017.
48 HOUR FORECAST VALID 0000 UTC DEC 15 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N148W TO 25N152W TO 20N164W TO 18N175W TO 19N176E
MOVING E 15 KT N OF 20N AND NEARLY STATIONARY S OF 20N. WINDS 30
TO 35 KT WITHIN 180 NM E OF FRONT N OF 27N. WINDS 20 TO 30 KT
ELSEWHERE N OF 23N E OF 167W. SCATTERED MODERATE TO STRONG TSTMS
WITHIN 90 NM OF FRONT N OF 25N.
.24 HOUR FORECAST FRONT FROM 30N142W TO 21N145W THENCE TROUGH TO
17N150W. ASSOCIATED WINDS DECREASED TO 20 KT OR LESS.
.48 HOUR FORECAST TROUGH FROM 30N145W TO 24N147W TO 16N147W.
WINDS 20 TO 25 KT BETWEEN TROUGH AND 157W.

.SYNOPSIS AND FORECAST.

.FRONT AT 30N160E NEARLY STATIONARY. ISOLATED MODERATE TSTMS
WITHIN 60 NM OF FRONT.
.24 HOUR FORECAST FRONT NW OF FORECAST WATERS. S TO SW WINDS 20
TO 25 KT N OF 28N W OF 163E.
.48 HOUR FORECAST FRONT FROM 30N169E TO 25N160E. S TO SW WINDS 20
TO 30 KT N OF LINE FROM 30N177E TO 24N160E.

.HIGH 30N179W 1023 MB MOVING E 10 KT. RIDGES FROM HIGH TO 22N164W
AND FROM HIGH TO 27N170E TO 25N160E.
.24 HOUR FORECAST HIGH 29N169W 1023 MB.
.48 HOUR FORECAST HIGH 29N162W 1025 MB.

.RIDGE FROM 25N140W TO 19N155W NEARLY STATIONARY AND ERODING FROM
THE W.

.E WINDS 20 TO 25 KT FROM 08N TO 21N W OF 170W.
.24 HOUR FORECAST E WINDS 20 TO 25 KT FROM 07N TO 22N BETWEEN 160W
AND 167E.
.48 HOUR FORECAST NE TO E WINDS 20 TO 30 KT FROM 07N TO 23N
BETWEEN 157W AND 178E.

.SEAS 18 TO 23 FT N OF 26N BETWEEN 159W AND 175W. SEAS 12 TO 18 FT
ELSEWHERE N OF LINE FROM 30N145W TO 25N154W TO 20N176E TO 30N174E.
SEAS 8 FT OR LESS FROM 12N TO 21N BETWEEN 152W AND 170W...AND N OF
23N W OF 166E. SEAS 8 TO 12 FT REST OF AREA N OF 08N.
.24 HOUR FORECAST SEAS 12 TO 16 FT IN AREA BOUNDED BY 30N168W
30N140W 20N152W 09N179E 21N178E 30N168W. SEAS 8 FT OR LESS FROM 21N
TO 27N W OF 174E...AND S OF 07N W OF 150W. SEAS 8 TO 12 FT REST OF
AREA.
.48 HOUR FORECAST SEAS 12 TO 14 FT IN AREA BOUNDED BY 30N150W
30N140W 18N140W 08N160W 06N180E 17N180E 30N150W. SEAS 8 FT OR LESS
S OF 25N E OF 170E...AND N OF 25N BETWEEN 170W AND 175E. SEAS 8 TO
12 FT REST OF AREA.

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

.ITCZ FROM 09N140W TO 08N155W TO 07N171W TO 07N175E TO 06N160E.
SCATTERED MODERATE TO STRONG TSTMS WITHIN 120 NM OF ITCZ W OF 175E.
ISOLATED MODERATE TSTMS WITHIN 60 NM OF ITCZ E OF 175E.

$$

.FORECASTER WROE. HONOLULU HI.



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.