The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 03/16/2026 07:01:12 PM UTC
                        
231
FZPN40 PHFO 160901
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 UTC MON MAR 16 2026

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 180W

SYNOPSIS VALID 0600 UTC MAR 16 2026.
24 HOUR FORECAST VALID 0600 UTC MAR 17 2026.
48 HOUR FORECAST VALID 0600 UTC MAR 18 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 30N149W 20N157W 12N170W 09N180W NEARLY STATIONARY. WINDS
20 TO 30 KT WITHIN 180 NM E OF TROUGH N OF 22N. ISOLATED MODERATE
TSTMS WITHIN 120 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 30N148W 20N156W 13N163W 12N170W. WINDS
20 TO 25 KT WITHIN 120 NM E OF TROUGH N OF 22N.
.48 HOUR FORECAST TROUGH 30N144W 22N150W 18N154W. WINDS 20 TO 25
KT WITHIN 120 NM E OF TROUGH N OF 28N.

.FRONT 30N157W 24N162W 24N168W MOVING E 15 KT. WINDS 20 TO 25 KT
N OF LINE 30N170W 24N160W 30N160W.
.24 HOUR FORECAST FRONT MERGED WITH TROUGH DIRECTLY DESCRIBED ABOVE.

.24 HOUR FORECAST FORECAST NEW FRONT 25N180W 22N177W. WINDS 20 TO
25 KT N OF 23N W OF 176W.
.48 HOUR FORECAST FRONT 29N180W 26N172W. WINDS 20 TO 30 KT N OF
FRONT.

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

.SEAS 4 TO 5 M N OF LINE 22N180W 22N170W 25N140W. SEAS 2.5 TO 4 M
ELSEWHERE N OF LINE 12N180W 11N163W 21N140W.
.24 HOUR FORECAST SEAS 4 TO 4.5 M N OF LINE 27N180W 26N161W 30N156W.
SEAS 2.5 TO 4 M ELSEWHERE N OF 15N180W 12N170W 30N161W 26N140W.
.48 HOUR FORECAST SEAS 4 TO 5 M N OF 26N W OF 170W. SEAS 2.5 TO 4
M N OF LINE 20N180W 20N160W 28N140W.

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

.ITCZ 02N140W 03N153W. ISOLATED MODERATE TSTMS FROM ITCZ TO 07N E
OF 144W.

.ISOLATED MODERATE TSTMS FROM 03N TO 09N W OF 172W.

$$

.FORECASTER SHIGESATO. HONOLULU HI.