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
000
FZPS40 PHFO 220331
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC SUN APR 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 APR 22 2018.
24 HOUR FORECAST VALID 0000 UTC APR 23 2018.
48 HOUR FORECAST VALID 0000 UTC APR 24 2018.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 23S174W 1011 MB MOVING ENE 20 KT. TROUGHS FROM LOW TO
21S178W...AND FROM LOW TO 17S160W NEARLY STATIONARY. WINDS 20
TO 25 KT SEAS 8 TO 9 FT WITHIN 200 NM SE QUADRANT OF CENTER.
SCATTERED MODERATE TSTMS WITHIN 160 NM OF TROUGH E OF LOW.
.24 HOUR FORECAST LOW 19S165W 1013 MB. WINDS DIMINISHED TO 20
KT OR LESS.
.48 HOUR FORECAST LOW 19S160W 1011 MB.

.LOW 20S177E 1009 MB NEARLY STATIONARY...DISSIPATING. TROUGH
FROM LOW TO 21S178W.
.24 HOUR FORECAST LOW AND TROUGH DISSIPATED.

.LOW 11S164E 1008 MB MOVING W NEAR 10 KT...DISSIPATING. TROUGHS
FROM LOW TO A LOW W OF FORECAST WATERS AT 05N159E NEARLY
STATIONARY...AND FROM LOW TO 14S169E...MOVING W NEAR 10 KT.
SCATTERED MODERATE TO STRONG TSTMS WITHIN 300 NM SE QUADRANT.
.24 HOUR FORECAST LOW WEAKENED TO A TROUGH...FROM 10S160E TO
15S162E.
.48 HOUR FORECAST TROUGH MOVED W OF FORECAST AREA.

.TROUGH FROM 25S137W TO 18S139W NEARLY STATIONARY. SCATTERED...
ISOLATED MODERATE TSTMS WITHIN 300 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH FROM 25S135W TO 22S140W.
.48 HOUR FORECAST TROUGH FROM 25S127W TO 22S130W TO 21S136W.

.TROUGH FROM 10S156W TO 12S154W TO 14S148W MOVING SW SLOWLY AND
DISSIPATING. ISOLATED MODERATE TSTMS WITHIN 200 NM E OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 07S178E TO 10S177E TO 14S179E MOVING W TO 15 KT.
SCATTERED MODERATE ISOLATED STRONG TSTMS WITHIN 200 NM E OF
TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.TROUGH FROM 04S162W TO 07S175W MOVING W 10 KT AND DISSIPATING.
ISOLATED MODERATE TSTMS WITH 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW LOW NEAR 25S158W 1010 MB. TROUGH FROM
25S155W TO 23S155W TO 20S162W.
.48 HOUR FORECAST LOW S OF FORECAST AREA. TROUGH FROM 25S147W
TO 20S143W TO 19S160W.

.RIDGE FROM 17S170W TO 15S177ETO 17S171E MOVING WSW SLOWLY.

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

.ELSEWHERE SEAS 8 FT OR LESS.
.24 HOUR FORECAST SEAS 8 TO 9 FT BETWEEN 04S AND 13S E OF 125W.
.48 HOUR FORECAST NO SIGNIFICANT CHANGE.

.SCATTERED MODERATE TO STRONG TSTMS N OF 05S W OF 168E. SCATTERED
MODERATE TSTMS WITHIN 150S NM OF A LINE FROM 15S177W TO 14S170W TO
12S163W.


$$

.FORECASTER LAU. HONOLULU HI.


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