570
FZPN40 PHFO 312239
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
2300 UTC FRI JUL 31 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC JUL 31 2026.
24 HOUR FORECAST VALID 1800 UTC AUG 01 2026.
48 HOUR FORECAST VALID 1800 UTC AUG 02 2026.
.WARNINGS.
.NONE.
.SYNOPSIS AND FORECAST25
.LOW NEAR 27N167W 1014 MB MOVING WNW 10 KT. TROUGH 25N167W TO LOW
TO 30N165W MOVING WNW 10 KT. WINDS 20 TO 25 KT AND SEAS 2.5 TO 3 M
N OF 27N BETWEEN 162W AND 172W. SCATTERED MODERATE TSTMS N OF 28N
BETWEEN 163W AND 168W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 26N174W TO 30N173W.
WINDS 20 TO 25 KT AND SEAS 2.5 TO 3 M N OF 29N W OF 170W.
.48 HOUR FORECAST TROUGH MOVED NW OF AREA. WINDS EASED BELOW 20
KT AND SEAS LESS THAN 2.5 M.
.LOW NEAR 06N178W 1009 MB MOVING SLOWLY W. SCATTERED MODERATE
TSTMS N OF 07N BETWEEN 168W AN 176W.
.24 HOUR FORECAST LOW MOVED W OF THE AREA..
.LOW NEAR 06N156W 1008 MB MOVING W SLOWLY. ISOLATED MODERATE
TSTMS FROM 01N TO 03N BETWEEN 152W AND 160W.
.24 HOUR FORECAST LOW NEAR 06N161W MOVING W SLOWLY. TROUGH
02N164W TO LOW TO 09N156W.
.48 HOUR FORECAST LOW OPENED UP TO TROUGH FROM 03N170W TO 08N163W
TO 11N158W.
.WINDS 20 TO 25 KT IN AREA FROM 16N TO 27N E OF 150W.
.24 HOUR FORECAST WINDS 20 TO 25 KT FROM 13N TO 27N BETWEEN 147W
AND 164W.
.48 HOUR FORECAST WINDS 20 TO 25 KT FROM 17N TO 24N W OF 177W AND
FROM 16N TO 26N BETWEEN 156W AND 170W. WINDS 20 TO 30 KT N OF 26N
E OF 143W.
.WINDS 20 KT OR LESS OVER REMAINDER OF FORECAST AREA.
.SEAS 2.5 TO 3 M 13N TO 27N E OF 156W.
.24 HOUR FORECAST SEAS 2.5 TO 3 M 13N TO 28W E OF 160W.
.48 HOUR FORECAST SEAS 2.5 TO 3 M 21N TO 27N BETWEEN 178W AND
140W BETWEEN 114W AND OF 170W. SEAS 3 TO 3.5 M FROM 27N TO 14N E
OF 148W.
.SEAS 2.5 M OR LOWER OVER REMAINDER OF FORECAST AREA.
.FORECASTER CHAN. HONOLULU HI.
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