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
000
FZPN40 PHFO 281520
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC TUE FEB 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FEB 28 2017.
24 HOUR FORECAST VALID 1200 UTC MAR 01 2017.
48 HOUR FORECAST VALID 1200 UTC MAR 02 2017.

.WARNINGS.

...GALE WARNING...
.FRONT FROM 30N160E TO 29N167E MOVING NE 15 KT. NE TO E WINDS 20 TO
30 KT OVER FORECAST WATERS N OF FRONT.
.24 HOUR FORECAST FRONT MOVED N OF FORECAST AREA. NEW FRONT FROM
30N169E TO 23N160E. WINDS 25 TO 35 KT OVER FORECAST WATERS N OF LINE
FROM 28N177E TO 25N160E.
.48 HOUR FORECAST FRONT FROM 30N178E TO 20N170E TO 19N160E. WINDS 30
TO 45 KT OVER FORECAST WATERS N OF 26N BETWEEN 167E AND 178W. WINDS
20 TO 30 KT ELSEWHERE N OF LINE FROM 28N172W TO 24N178E TO 24N162E.

...GALE WARNING...
.TROUGH FROM 19N168W TO 12N168W TO 06N173W MOVING E SLOWLY. ISOLATED
MODERATE TSTMS FROM 14N TO 20N BETWEEN 158W AND 170W...AND 07N TO
09N BETWEEN 157W AND 168W.
.24 HOUR FORECAST TROUGH FROM 20N166W TO 14N162W TO 07N171W. E TO SE
WINDS 20 TO 25 KT OVER FORECAST WATERS FROM 08N TO 27N E OF 158W.
.48 HOUR FORECAST NEW LOW 25N159W 1009 MB. FRONT FROM LOW TO 27N156W
TO 23N150W. TROUGH FROM LOW TO 20N157W TO 14N161W. WINDS 25 TO 35 KT
OVER FORECAST WATERS WITHIN 540 NM OF LOW E QUADRANT. WINDS 20 TO 30
KT ELSEWHERE OVER FORECAST WATERS N OF 17N E OF 159W.

.SYNOPSIS AND FORECAST.

.LOW 24N174W 1013 MB MOVING E SLOWLY.
.24 HOUR FORECAST LOW DISSIPATED. REMNANT TROUGH FROM 30N173W TO
22N174W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.FRONT FROM 30N178E TO 26N176E MOVING E 10 KT.
.24 HOUR FORECAST WEAK FRONT FROM 30N179W TO 28N179E.
.48 HOUR FORECAST FRONT DISSIPATED.

.TROUGH FROM 30N163W TO 26N166W NEARLY STATIONARY. SCATTERED
MODERATE TSTMS FROM 20N TO 26N BETWEEN 165W AND 169W. ISOLATED TO
LOCALLY SCATTERED MODERATE TSTMS WITHIN 60 NM E OF TROUGH N OF 27N.
.24 HOUR FORECAST TROUGH FROM 30N164W TO 24N164W.
.48 HOUR FORECAST TROUGH DISSIPATED.

.RIDGE FROM 30N170E TO 25N167E TO 22N160E MOVING E 20 KT.

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

.SEAS 8 TO 9 FT OVER FORECAST WATERS N OF 28N W OF 165E.
.24 HOUR FORECAST SEAS 12 TO 15 FT OVER FORECAST WATERS N OF 28N W
OF 165E. SEAS 8 TO 12 FT ELSEWHERE NW OF LINE FROM 30N174E TO
25N160E.
.48 HOUR FORECAST SEAS 18 TO 27 FT OVER FORECAST WATERS N OF 27N
BETWEEN 168E AND 179E. SEAS 12 TO 18 FT ELSEWHERE N OF 24N BETWEEN
162E AND 179W. SEAS 8 TO 12 FT ELSEWHERE N OF LINE FROM 29N177W TO
23N176E TO 21N160E. SEAS 8 TO 13 FT FROM 20N TO 29N BETWEEN 146W AND
158W.

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

.ITCZ FROM 06N176E TO 05N170E TO 05N160E. ISOLATED MODERATE TSTMS
WITHIN 120 NM N OF ITCZ W OF 168E.

$$

.FORECASTER KINEL. HONOLULU HI.



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