538
FZPN40 PHFO 211041
HSFNP
HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1100 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC AUG 21 2026.
24 HOUR FORECAST VALID 0600 UTC AUG 22 2026.
48 HOUR FORECAST VALID 0600 UTC AUG 23 2026.
.WARNINGS.
..HURRICANE WARNING
.HURRICANE LALA NEAR 26.6N 171.7W 971 MB AT 0900 UTC AUG 21
MOVING NNE OR 020 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM N
SEMICIRCLE...120 NM SE QUADRANT AND 80 NM SW QUADRANT. WINDS 25
TO 30 KT ELSEWHERE N OF 23N BETWEEN 166W AND 176W. SEAS 4 M OR
GREATER WITHIN 210 NM N SEMICIRCLE AND 180 NM S SEMICIRCLE WITH
SEAS TO 9 M. SEAS 2.5 TO 3.5 M ELSEWHERE N 21N W OF 167W.
SCATTERED MODERATE TSTMS WITHIN 60 NM FROM THE CENTER.
.24 HOUR FORECAST HURRICANE LALA NEAR 29.8N 171.7W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 160 NM N SEMICIRCLE...140 NM SE QUADRANT AND 100 NM SW
QUADRANT. WINDS 20 TO 30 KT ELSEWHERE N OF 27N BETWEEN 165W AND
175W. SEAS 4 M OR GREATER N OF 27N BETWEEN 167W AND 175W WITH SEAS
TO 11 M NEAR THE CENTER. SEAS 2.5 TO 3.5 M ELSEWHERE N OF 24N W
OF 165W.
.48 HOUR FORECAST HURRICANE LALA NEAR 31.8N 173.6W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 150 NM N SEMICIRCLE...100 NM SW QUADRANT AND 140 NM SE
QUADRANT. WINDS 20 TO 30 KT ELSEWHERE N OF 27N BETWEEN 169W AND
178W. SEAS 4 M OR GREATER N OF 29N BETWEEN 170W AND 177W WITH SEAS
TO 9 M NEAR THE CENTER. SEAS 2.5 TO 3.5 M ELSEWHERE N OF 25N W OF
165W.
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 13.0N 145.6W 1006 MB AT 0900 UTC
AUG 21 MOVING WNW OR 290 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 30
KT GUSTS 40 KT. WINDS 20 TO 30 KT FROM 13N TO 17N BETWEEN 142W AND
147W. SCATTERED MODERATE TSTMS FROM 13N TO 17N BETWEEN 142W AND
146W.
.12 HOUR FORECAST TROPICAL STORM TWO-C NEAR 13.5N 146.8W. MAXIMUM
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM NE QUADRANT. WINDS 20 TO 30 KT ELSEWHERE FROM 12N TO
21N BETWEEN 141W AND 151W. SEAS 2.5 TO 3 M FROM 12N TO 20N BETWEEN
143W AND 151W.
.24 HOUR FORECAST TROPICAL STORM TWO-C NEAR 14.3N 148.4W. MAXIMUM
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM N SEMICIRCLE. WINDS 20 TO 30 KT ELSEWHERE FROM 12N TO
22N BETWEEN 145W AND 153W. SEAS 4 M OR GREATER WITHIN 45 NM N
SEMICIRCLE WITH SEAS TO 5 M. SEAS 2.5 TO 3.5 M ELSEWHERE FROM 12N
TO 22N BETWEEN 143W AND 154W.
.48 HOUR FORECAST TROPICAL STORM TWO-C NEAR 15.8N 153.2W. MAXIMUM
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS
WITHIN 30 NM S SEMICIRCLE...80 NM NE QUADRANT AND 50 NM NW
QUADRANT. WINDS 20 TO 30 KT ELSEWHERE FROM 15N TO 20N BETWEEN 148W
AND 158W. SEAS 4 M OR GREATER WITHIN 120 NM N SEMICIRCLE WITH
SEAS TO 6.5 M. SEAS 2.5 TO 4 M ELSEWHERE FROM 12N TO 23N BETWEEN
145W 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 20N157W TO 24N157W TO 27N155W MOVING NW 10 KT.
.24 HOUR FORECAST TROUGH 20N157W TO 23N160W 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 10N158W TO 13N168W TO 09N180W.
SCATTERED MODERATE TO STRONG TSTMS FROM 04N TO 11N W OF 174W.
SCATTERED MODERATE TSTMS WITHIN 50 NM OF 10N158W...AND FROM 10N TO
15N BETWEEN 165W AND 172W.
.SCATTERED MODERATE TSTMS FROM 00N TO 08N BETWEEN 147W AND 157W.
.FORECASTER CHAN. HONOLULU HI.
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