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 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
189
FZPS40 PHFO 200333
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC TUE FEB 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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

SOUTH PACIFIC EQUATOR TO 25S BETWEEN 120W AND 160E

SYNOPSIS VALID 0000 UTC FEB 20 2018.
24 HOUR FORECAST VALID 0000 UTC FEB 21 2018.
48 HOUR FORECAST VALID 0000 UTC FEB 22 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 14S166W 1005 MB MOVING WNW SLOWLY. SECOND LOW 23S160W 1005 MB
MOVING W SLOWLY. TROUGH FROM 25S155W TO 21S155W TO 17S159W TO FIRST
LOW TO 13S177W TO 13S170E TO 15S160E NEARLY STATIONARY. WINDS 20 TO
30 KT S OF A LINE FROM 24S147W TO 16S154W. SCATTERED MODERATE TO
STRONG TSTMS FROM 07S TO 12S BETWEEN 156W AND 179W...AND S OF 20S
BETWEEN TROUGH AND 151W. ISOLATED MODERATE TSTMS ELSEWHERE N OF 12S
W OF 174W...AND S OF 10S BETWEEN 145W AND 156W.
.24 HOUR FORECAST FIRST LOW 12S171W 1006 MB. SECOND LOW DISSIPATED.
TROUGH FROM 25S161W TO 16S165W TO LOW TO 11S176W TO 12S167E. WINDS
EASED TO 20 KT OR LESS.
.48 HOUR FORECAST LOW 11S175W 1008 MB. TROUGH FROM 24S160W TO LOW
TO 12S176W TO 18S171E.

.TROUGH FROM 23S160E TO 25S162E MOVING W SLOWLY.
.24 HOUR FORECAST TROUGH MOVED W OF AREA.

.RIDGE FROM 12S146W T0 04S169W TO 04S176E TO 00S166E NEARLY
STATIONARY.

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

.SEAS 8 TO 13 FT S OF 18S BETWEEN 148W AND 155W.
.24 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.

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

.ISOLATED MODERATE TSTMS WITHIN 60 NM OF 22S162E...20S174E AND
18S178E...AND FROM 10S TO 21S BETWEEN 130W AND 145W.

$$

.HONOLULU HI.



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