299 
FZPN40 PHFO 260321
HSFNP 

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
0500 UTC MON JUL 26 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 160E

SYNOPSIS VALID 0000 UTC JUL 26 2021.
24 HOUR FORECAST VALID 0000 UTC JUL 27 2021.
48 HOUR FORECAST VALID 0000 UTC JUL 28 2021.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW JUST E OF AREA MOVING W 10 KT. 
.24 HOUR FORECAST LOW 13N141W 1009 MB. WINDS 20 TO 30 KT AND SEAS
8 TO 11 FT FROM 13 TO 18N E OF 148W.
.48 HOUR FORECAST LOW 13N147W 1009 MB. WINDS 20 TO 25 KT AND SEAS
8 TO 10 FT FROM 14N TO 19N BETWEEN 142W AND 152W. 

.TROUGH 26N175E TO 16N173E MOVING W SLOWLY. WINDS E TO SE 20 TO 
25 KT N OF LINE 15N170W TO 22N180W TO 30N170E. SCATTERED MODERATE
TSTMS FROM 15N TO 28N BETWEEN 170E AND 174W. ISOLATED MODERATE 
TSTMS FROM 13N TO 17N BETWEEN 164E AND 168E. 
.24 HOUR FORECAST TROUGH 26N171E TO 18N171E. WINDS E 20 TO 25 KT 
N OF LINE 23N172W TO 23N180W TO 30N175E. 
.48 HOUR FORECAST TROUGH 27N170E TO 20N168E. WINDS DIMINISHED TO 
20 KT OR LESS. 

.RIDGE 30N167E TO 19N160E MOVING WNW SLOWLY. 

.WINDS E TO NE 20 TO 25 KT FROM 12N TO 24N E OF 170W. WINDS E TO
SE 20 TO 25 KT S OF 05N E OF 160W.
.24 HOUR FORECAST WINDS E TO NE 20 TO 25 KT FROM 10N TO 18N 
BETWEEN 152W AND 175W. WINDS E TO SE 20 TO 25 KT S OF 05N E OF 
168W. 
.48 HOUR FORECAST WINDS WINDS DIMINISHED TO 20 KT OR LESS.

.WINDS 20 KT OR LESS REST OF AREA. 

.SEAS 8 TO 10 FT N OF 25N W OF 164E. 
.24 HOUR FORECAST SEAS 8 TO 9 FT N OF 27N W OF 162E. 
.48 HOUR FORECAST SEAS LOWERED TO 8 FT OR LESS.

.SEAS 8 FT OR LOWER REST OF AREA. 

.ISOLATED MODERATE TSTMS FROM 04N TO 08N W OF 167E. 

.ITCZ 11N140W TO 05N170W TO 04N189E. ISOLATED MODERATE TSTMS 
WITHIN 180 NM OF ITCZ. 

$$

.FORECASTER BURKE. HONOLULU HI.