925
FZPN40 PHFO 211537
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC FRI AUG 21 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC AUG 21 2026.
24 HOUR FORECAST VALID 1200 UTC AUG 22 2026.
48 HOUR FORECAST VALID 1200 UTC AUG 23 2026.
.WARNINGS.
..HURRICANE WARNING
.HURRICANE LALA NEAR 27.6N 170.8W 970 MB AT 1500 UTC AUG 21
MOVING NNE OR 030 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM E
SEMICIRCLE...80 NM SW QUADRANT AND 110 NM NW QUADRANT. WINDS 20 TO
30 KT ELSEWHERE N OF 23N BETWEEN 165W AND 175W. SEAS 4 M OR
GREATER WITHIN 150 NM S SEMICIRCLE...180 NM NE QUADRANT AND 210 NM
NW QUADRANT WITH SEAS TO 11 M. SEAS 2.5 TO 3.5 M ELSEWHERE N OF
22N W OF 166W. SCATTERED MODERATE TSTMS FROM 26N TO 29N BETWEEN
170W AND 172W.
.24 HOUR FORECAST HURRICANE LALA NEAR 30.4N 171.9W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM N SEMICIRCLE...140 NM SE QUADRANTS AND 100 NM SW
QUADRANT. WINDS 20 TO 30 KT ELSEWHERE N OF 27N BETWEEN 166W AND
176W. SEAS 4 M OR GREATER N OF 27N BETWEEN 168W AND 175W WITH SEAS
TO 10 M NEAR CENTER. SEAS 2.5 TO 3.5 M ELSEWHERE N OF 25N W OF
163W.
.48 HOUR FORECAST HURRICANE LALA NEAR 32.1N 173.7W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM N SEMICIRCLE AND 120 NM S SEMICIRCLE. WINDS 20 TO 30
KT ELSEWHERE N OF 27N BETWEEN 166W AND 176W. SEAS 4 M OR GREATER
N OF 27N BETWEEN 168W AND 175W WITH SEAS TO 10 M NEAR CENTER. SEAS
2.5 TO 3.5 M ELSEWHERE N OF 25N W OF 163W.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
..TROPICAL STORM WARNING
.TROPICAL DEPRESSION TWO-C NEAR 13.4N 146.0W 1005 MB AT 1500 UTC
AUG 21 MOVING WNW OR 295 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. WINDS 20 TO 30 KT FROM 12N TO 18N BETWEEN 143W
AND 149W. SEAS 2.5 TO 3.5 M FROM 12N TO 19N BETWEEN 142W AND 149W.
SCATTERED MODERATE TSTMS FROM 13N TO 17N BETWEEN 142W AND 146W.
.12 HOUR FORECAST TROPICAL STORM TWO-C NEAR 13.9N 147.2W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 40 NM N SEMICIRCLE. WINDS 20 TO 30 KT ELSEWHERE FROM 12N TO
21N BETWEEN 142W AND 151W. SEAS 2.5 TO 4 FT FROM 12N TO 20N
BETWEEN 143W AND 152W.
.24 HOUR FORECAST TROPICAL STORM TWO-C NEAR 14.7N 149.2W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM NE QUADRANT AND 30 NM NW QUADRANT. WINDS 20 TO 30 KT
ELSEWHERE FROM 13N TO 21N BETWEEN 146W AND 163W. SEAS 4 M OR
GREATER WITHIN 65 NM N SEMICIRCLE WITH SEAS TO 5 M. SEAS 2.5 TO
3.5 M ELSEWHERE FROM 12N TO 22N BETWEEN 143W AND 155W.
.48 HOUR FORECAST TROPICAL STORM TWO-C NEAR 15.9N 153.7W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 60 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE. WINDS 20 TO 30
KT ELSEWHERE FROM 15N TO 20N BETWEEN 149W AND 157W. SEAS 4 M OR
GREATER WITHIN 120 NM N SEMICIRCLE WITH SEAS TO 6 M. SEAS 2.5 TO
3.5 M ELSEWHERE FROM 12N TO 22N BETWEEN 146W AND 160W.
FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.
SEE THE LATEST BULLETINS ON BOTH SYSTEMS ISSUED BY NHC UNDER WMO
HEADERS...WTPA22 PHFO AND WTP23 PHFO.
.SYNOPSIS AND FORECAST
.TROUGH 20N159W TO 24N158W TO 27N156W MOVING NW 10 KT.
.24 HOUR FORECAST TROUGH 20N158W TO 22N160W TO 25N160W.
.48 HOUR FORECAST TROUGH DISSIPATED.
.WINDS 20 KT OR LESS OVER THE REMAINDER OF FORECAST AREA.
.SEAS 2.5 M OR LESS OVER THE REMAINDER OF FORECAST AREA.
.MONSOON TROUGH 11N147W TO 08N160W TO 05N170W TO 06N180W.
NUMEROUS MODERATE TO SCATTERED STRONG TSTMS WITHIN 510 NM N OF
TROUGH W OF 173W. SCATTERED MODERATE TO ISOLATED STRONG TSTMS
FROM 00N TO 10N BETWEEN 150W AND 160W.
.ISOLATED MODERATE TSTMS WITHIN 40 NM OF A LINE FROM 16N180W TO
18N173W TO 23N168W.
.FORECASTER CHAN. HONOLULU HI.
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