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
328
FZPS40 PHFO 010311
HSFSP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0530 UTC MON SEP 01 2025

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 01 2025.
24 HOUR FORECAST VALID 0000 UTC SEP 02 2025.
48 HOUR FORECAST VALID 0000 UTC SEP 03 2025.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 25S172W 22S180W 20S169E MOVING E 35 KT.
.24 HOUR FORECAST TROUGH 25S155W 20S160W.
.48 HOUR FORECAST TROUGH 25S136W 20S146W 18S153W.

.TROUGH 25S134W 20S145W 22S158W MOVING E 30 KT.
.24 HOUR FORECAST TROUGH 25S125W 20S130W 18S140W.
.48 HOUR FORECAST TROUGH 25S120W 20S125W.

.TROUGH 14S171E 09S160E MOVING S 10 KT.
.24 HOUR FORECAST TROUGH 17S172E 12S160E.
.48 HOUR FORECAST TROUGH 18S174E 15S170E.

.WINDS 20 KT OR LESS OVER ENTIRE FORECAST AREA.

.SEAS 2.5 TO 3 M E OF 125W S OF 05S. SEAS 2.5 TO 4 M S
OF LINE 20S160E 25S175W.
.24 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 25S165E
15S175E 25S160W.
.48 HOUR FORECAST SEAS 2.5 TO 4 M S OF LINE 10S175E
22S145W 25S120W.

.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.

.CONVERGENCE ZONE 11S151W 10S169W 08S178W. ISOLATED TSTMS
WITHIN 150 NM POINT 08S173W.

.ISOLATED MODERATE TSTMS WITHIN 150 NM OF LINE 07S160E
15S172E.

$$

.FORECASTER PECHACEK. HONOLULU HI.