The High Seas Forecast for the Central North Pacific

High Seas Forecast Issued: 05/13/2026 01:28:40 PM UTC
                        
315
FZPN40 PHFO 130328
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC WED MAY 13 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC MAY 13 2026.
24 HOUR FORECAST VALID 0000 UTC MAY 14 2026.
48 HOUR FORECAST VALID 0000 UTC MAY 15 2026.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.TROUGH 08N141W 06N144W 03N146W MOVING W SLOWLY. ISOLATED
MODERATE TSTMS FROM 09N TO 04N E OF 146W.
.24 HOUR FORECAST TROUGH DISSIPATED.

.24 HOUR FORECAST NEW TROUGH 30N157W 22N161W.
.48 HOUR FORECAST TROUGH 30N156W 20N157W.

.WINDS 20 TO 25 KT FROM 25N TO 10N W OF 148W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 28N TO 10N BETWEEN 180W
AND 140W.
.48 HOUR FORECAST WINDS 20 TO 25 KT N OF LINE 30N166W 23N180W
15N180W 23N162W 26N144W 30N145W.

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

.SEAS 2.5 TO 3 M N OF LINE 30N148W 27N150W 30N143W...AND W OF LINE
23N180W 22N168W 17N161W 20N150W 17N143W 08N148W 05N170W 08N180W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M IN AREA BOUNDED BY 30N172W
26N180W 09N180W 11N140W 25N140W 23N154W 18N154W 16N171W 30N161W
30N172W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M N OF LINE 30N165W 25N180W
08N180W 12N140W 24N140W 30N148W.

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

.ITCZ 03N152W 05N163W 05N180W. SCATTERED MODERATE TSTMS FROM 11N
TO 03N W OF 155W.

.ISOLATED MODERATE TSTMS FROM 22N TO 19N BETWEEN 176W AND
172W...AND S OF 02N BETWEEN 177W AND 167W.

$$

.FORECASTER TROTTER. HONOLULU HI.